Thomas H. Pulliam

Photo of Thomas Pulliam
  • Senior Research Scientist, NASA Ames Research Center (ARC)
  • Computational Aerosciences Branch
  • 650.604.6417
  • B.S. in Mathematics, Michigan Technological University, Houghton, MI, 1973
  • M.S. in Applied Mechanics, Stanford University, Stanford, CA, 1974
  • Ph.D. in Applied Mechanics, Stanford University, Stanford, CA, 1976
  • NRC Associate at NASA Ames RC from Jan. 1977 until hired at NASA Ames Research Center, Moffett Field Ca. in July 1979.
  • Research scientist with Flow Simulations, Inc., Oct. 1979 - Apr. 1980.
  • Employed at NASA Ames May 1980 - Present.
  • Head Computational Physics Section, Computational Fluid Dynamics Branch, NASA Ames Research Center, May 1986 - Dec. 1992.
  • Currently Senior Staff Scientist, Code TNA, NASA Ames RC
  • Consulting Professor - Lecturer, Stanford University, Coarse AA214, Introduction to CFD. Fall Quarter 1993-2010.
  • Consulting Professor, San Jose State University, Coarse AE296, Introduction to Computational Fluid Mechanics and Heat Transfer. Spring Semester 1995, 1997.

Please click on the subheads below to expand.

Research/Technical Interests

  • 1980-Present: Developing algorithm improvements for a class of implicit finite difference codes, see Notes . Improving the accuracy, convergence and efficiency of the two dimensional implicit approximate factorization code, ARC2D. Some recent contributions were reported on at the U. of Tennessee workshop on Computational Fluid Dynamics, further improvements are currently being developed. Application of algorithm improvements to the three dimensional code ARC3D. Generating a VECTORAL version of the three dimensional code for use on the CRAY XMP and CYBER 205. Performing detailed computations of two dimensional and three dimensional inviscid and viscous flows. The computations are used to assess the accuracy of the codes, they are intended as standards for comparison purposes ( this is the specific purpose of the AGARD WG 07 airfoil computations) and are used to further the understand of fluid physics. In particular, computations of three dimensional bluff bodies are being studied in an attempt to understand the physics of separated flows. Current work also includes support for the large number of users of the ARC2D and ARC3D codes.
  • 1980-Present: Investigation and study of numerical methods in fluid mechanics with emphasis on finite difference methods, implicit schemes, grid generation, multi-grid, relaxation methods and computer vectorization. Development of a wide variety of model problems for analysis of numerical techniques.
  • Research into basic fluid dynamics using numerical methods. Developing an understanding of flow topology, flow interactions and turbulence through high accurate unsteady flow computations. Investigating the areas of nonlinear theory (chaos), cellular automata, and full simulation.
  • 1992-1996: Developing new iterative methods of the Krylov Subsapce type for use in Computational Fluid Dynamics. Investigating GMRES and BI-CGSTAB iterative solver technology, with application to the Euler and Navier-Stokes equations. Developing new Tensor-Krylov based methods which have been demonstrated to be more efficient than conventional Newton-Krylov techniques.
  • 1988-Present: Developing a fully time accurate high resolution scheme for the Navier-Stokes equations for application to very large eddy simulation of unsteady flows. High resolution schemes up to 6th order in space and fourth order in time to resolve various length scales in unsteady flows. Resulting solutions will be useful in modeling for transition and turbulence at the Reynolds Averages Navier-Stokes level.
  • Current Interests: Investigation of Information Theory Algorithms, e.g. Neural Nets, GA's, Fuzzy Logic, Pattern Search Methods, etc. as tollboxes for application to large scale computing.
  • Computational Astrophysics with particular applicaiton to planetary formation and detection. Advanced algorithms for Computational Astrophysics and Parallel implemtation.

Publications

  • Pulliam, T. H., A Numerical Algorithm for the Prediction of Long-Term Stratospheric Circulation, Ph. D. Thesis, Stanford University, 1976
  • Pulliam T. H. and Steger J. L., On Implicit Finite-Difference Simulations of Three- Dimensional Flow, AIAA Journal, Vol 18, No. 2 1980 p. 159, also AIAA Paper No. 78-10 Jan. 1978
  • Kutler P., Pulliam T. H. and Vigneron, Y. C., Computation of the Viscous Supersonic Flow Over External Axial Corners, AIAA J., Vol 17, No 6, 1979, p. 571, also AIAA Paper No. 78-1135, July 1978
  • Nietubicz C. J., Pulliam T. H. and Steger J. L., Numerical Solution of the Azimuthal- Invariant Thin- Layer Navier- Stokes Equations,AIAA J., Vol 18, No 12, 1980 p. 1411, also AIAA Paper No. 79-0010, Jan. 1979 and Technical Report ARBRL-TR-02227 March 1980
  • Pulliam T. H. and Lomax H., Simulation of Three- Dimensional Compressible Viscous Flow on the Illiac IV Computer, AIAA Paper No. 79-0206, 1979
  • Steele C. R., Ranjan G. V., Goto C. and Pulliam T. H., Computer Analysis of Shells of Revolution Using Asymptotic Results, Proceedings of AIAA 20th Structural Dynamics and Materials Conference, St. Louis, Mo., April 1979
  • Steele C. R., Ranjan G. V., Goto C. and Pulliam T. H., FAST - A Shell Code Using Asymptotic Results, Proceedings of the 5th Structural Mechanics Conference in Reactor Technology, Berlin, 1979
  • Kutler P., Pedelty J. A., and Pulliam T. H., Supersonic Flow Over Three- Dimensional Ablated Nosetips Using an Unsteady Implicit Numerical Procedure, AIAA Paper No. 80-63, 1980.
  • Chaussee D. S. and Pulliam T. H., Two- Dimensional Inlet Simulation Using a Diagonal Implicit Algorithm, AIAA J., Vol 19, 1981 p. 153, also AIAA Paper No. 80-67, Jan. 1980
  • Steger J. L., Pulliam T. H. and Chima R. V., An Implicit Finite Difference Code for Inviscid and Viscous Cascade Flow, AIAA Paper No. 80-1427, 1980
  • Chaussee D. S., Kutler P. and Pulliam T. H., Three Dimensional Viscous Flow Field Program, Part 1: Viscous Blunt Body Program, FSI Report No. 80-08, 1980
  • Pulliam T. H. and Chaussee D. S.,A Diagonal Form of an Implicit Approximate Factorization Algorithm, Journal of Computational Physics, Vol 39, No. 2, Feb. 1981
  • Chaussee D. S., Patterson J. L., Kutler P., Pulliam T. H. and Steger J. L.,A Numerical Simulation of Hypersonic Viscous Flows over Arbitrary Geometries at High Angle of Attack, AIAA Paper No. 81-0050, 1981
  • Lomax H., Pulliam T. H. and Jespersen D. C., Eigensystem Analysis Techniques for Finite- Difference Equations. 1. Multi- level Techniques,AIAA Paper No. 81-1027, 1981
  • Pulliam T. H.,Characteristic Boundary Conditions for the Euler Equations, Proceeding of Symposium on Numerical Boundary Condition Procedures NASA CP 2201, 1981 p. 165
  • Lomax H. and Pulliam T. H., A Three- Dimensional Implicit Code for the Illiac IV, Series in Computational Physics on Parallel Computations, Pub. Editor Garry Rodrigue, Academic Press, New York, N. Y. 1982
  • Lasinski T. A., Andrews A. E., Sorenson R. L., Chaussee D. S., Pulliam T. H., and Kutler P., Computation of the Steady Viscous Flow Over a Tri- Element Augmentor Wing Airfoil, AIAA Paper No. 82-0021, 1982
  • Hessenius K. A. and Pulliam T. H., A Zonal Approach to the Solution of the Euler Equations, AIAA Paper No. 82-0969, 1982
  • Pulliam, T. H., Jespersen, D. C., and Childs, R. E., An Enhanced Version of an Implicit Code for the Euler Equations, AIAA Paper No. 83-0344, 1983
  • Jespersen, D. C. and Pulliam, T. H., Approximate Newton Methods and Flux Vector Splitting, AIAA Paper No. 83-1899, 1983
  • Chow, L. J., Pulliam, T. H. and Steger, J. L., A General Perturbation Approach for Computational Fluid Dynamics, AIAA J.,Vol 22, No. 12, (also AIAA Paper No. 83-1903, 1983), 1984, p.1748
  • Pulliam, T. H., Implicit Finite- Difference Methods for the Euler Equations, Advances in Computational Transonics Fourth Volume in the Series on Recent Advances in Numerical Methods in Fluids, Editor W. G. Habashi,addr Pineridge Press Ltd, 1983
  • Childs, R. E. and Pulliam, T. H., A Newton Multigrid Method for the Euler Equations, AIAA Paper No. 84-0430, 1984
  • Flores, J., Barton, J., Holst, T. and Pulliam, T., Comparison of the Full Potential and Euler Formulations For Computing Transonic Airfoil Flows, Presented at the 9th International Conference on Numerical Methods in Fluid Dynamics, Saclay, France, June 1984, Lecture Notes in Physics Vol 218, No. 5, Editor Soubbaramayer and J. Boujot, Springer-Verlag, 1985
  • Barton, J. T. and Pulliam, T. H., Airfoil Computation at High Angles of Attack, Inviscid and Viscous Phenomena,AIAA J. Vol. 24, No. 5, (also AIAA Paper No. 85-0524, 1984) 1986 p. 705
  • Pulliam, T. H., Euler and Thin Layer Navier Stokes Codes : ARC2D, ARC3D, Computational Fluid Dynamics, A workshop Held at the University of Tennessee Space Institute, UTSI publ. E02-4005-023-84, 1984
  • Pulliam T. H. and Steger, J. L., Recent Improvements in Efficiency, Accuracy, and Convergence for Implicit Approximate Factorization Algorithms, AIAA Paper 85-0360, AIAA 23rd Aerospace Sciences Meeting, Reno, Nev., Jan. 1985
  • Pulliam, T. H. and Barton, J. T., Euler Computations of AGARD Working Group 07 Airfoil Test Cases, AIAA Paper 85-0018, AIAA 23rd Aerospace Sciences Meeting, Reno Nev., 1985
  • Pulliam, T.H., Efficient Solution Methods for The Navier-Stokes Equations, Lecture Notes for the von Kármán Institute For Fluid Dynamics Lecture Series : Numerical Techniques for Viscous Flow Computation In Turbomachinery Bladings, von Kármán Institute, Rhode-St-Genese, Belgium, 1985
  • Pulliam T. H., Artificial Dissipation Models for the Euler Equations, AIAA J., Vol 24, No 12 p. 1931 (also AIAA Paper 85-0438, AIAA 23rd Aerospace Sciences Meeting, Reno, Nev., Jan. 1985), 1986
  • Barth, T. J., and Pulliam T. H., Navier- Stokes Computations For Exotic Airfoils, AIAA Paper 85-0109, AIAA 23rd Aerospace Sciences Meeting, Reno, Nev., Jan. 1985 (Accepted AIAA J. 1987)
  • Pulliam T. H., Jespersen, D. C., and Barth, T. J., Navier- Stokes Computations For Circulation Controlled Airfoils, AIAA Paper 85-1587, AIAA 18th Fluid and Plasma Dynamics Conference Cincinnati, Ohio, July 1985
  • Pan, D. and Pulliam, T. H., The Computation Of Steady 3-D Separated Flows Over Aerodynamic Bodies At Incidence And Yaw, AIAA Paper No. 86-0109, AIAA 24rd Aerospace Sciences Meeting, Reno, Nev., Jan. 1986
  • Pulliam, T. H., Implicit Solution Methods In Computational Fluid Dynamics, Applied Numerical Mathematics, Vol 2, No. 6, North-Holland Elsevier Science Publishers B. V., Amsterdam, The Netherlands, Dec. 1986 p. 441
  • Maksymiuk, C. M. and Pulliam, T. H., Viscous Transonic Airfoil Workshop Results Using ARC2D, AIAA Paper No. 87-0415, AIAA 25rd Aerospace Sciences Meeting, Reno, Nev., Jan. 1987
  • Pulliam, T.H., Implicit Methods in CFD, Numerical Methods for Fluid Dynamics III, The Institute of Mathematics and Its Publications Conference Series, Proceeding of the ICFD 1988 Conference on Numerical Methods for Fluid Dynamics, University of Oxford, UK, March 1988, Ed. K. W. Morton and M. J. Baines, Clarendon Press, Oxford, England
  • Cheer, A.Y., Saleem, M., Pulliam, T.H. and Hafez, M., Analysis of the Convergence History of Flow Through Nozzles with Shocks AIAA Paper No. 88-3795, 1st National Fluid Dynamics Congress, Cincinnati, Ohio, July 1988
  • Pulliam, T.H., Low Reynolds Number Numerical Solutions of Chaotic Flow, AIAA paper 89-0123, AIAA 27th Aerospace Sciences Meeting, Reno, NV, 1989
  • Pulliam, T.H., A Computational Challenge : Euler Solution for Ellipses, AIAA J., Vol. 28,No. 10, Oct. 1990, also AIAA paper 89-0469, AIAA 27th Aerospace Sciences Meeting, Reno, NV, 1989
  • Pulliam, T. H. and Vastano, J. A. Numerical Simulation Of Chaotic Flows: Measures of Chaos, ASME Publication FED-Vol. 77, $3^{rd}$ Joint ASCE/ASME Mechanics Conference Forum on Chaotic Flows, La Jolla, CA, 1989
  • Pulliam, T. H., Introduction to Chaos Theory in CFD, AIAA 90-1440, AIAA 21st Fluid Dynamics, Plasma Dynamics, and Lasers Conference, Seattle, WA, June 1990.
  • Pulliam, T. H. and Vastano, J. A., Chaotic Flow Over An Airfoil, 12th International Conference on Numerical Methods in Fluid Dynamics, July 9-13, 1990, U. of Oxford, England.
  • Maksymiuk, C.M., Swanson, R.C., and Pulliam, T.H., 1990, A Comparison of Two Central Difference Schemes for Solving the Navier-Stokes Equations, NASA TM 102815
  • Shariff, K., Pulliam, T.H. and Ottino, J.M., 1991, A Dynamical Systems Analysis of Kinematics in the Time-Periodic Wake of a Circular Cylinder, AMS Lectures in Applied Mathematics, Vol. 28, pp 613.
  • Saleem, M., Pulliam, T.H. and Cheer, A.Y., Convergence Acceleration and Spectrum Transformation of a Two Dimensional Fluid Flow Problem,J Comp Physics, Vol. 104, No. 1, pp. 1-13, 1993.
  • Pulliam, T. H. and Vastano,J. A., Transition To Choas In An Open Unforced 2-D Flow, J Comp Physics, Vol. 105 No. 1, PP.133-149 1993.
  • Chan, W.M., Shariff, K., and Pulliam, T.H.,Instabilities of Two-Dimensional Inviscid Compressible Vorticies, J Fluid Mechanics, Vol. 253, pp 173-209, Aug. 1993.
  • Pulliam, T.H.,Time Accuracy And The Use Of Implicit Methods,AIAA Paper 93-3360, Presented at AIAA $11^{th}$ Computational Fluid Dynamics Conference, Orlando, FL, July 1993.
  • Rogers, S.E. and Pulliam, T.H.,Accuracy Enhancements For Overset grids Using a Defect Correction Approach,AIAA Paper 94-0523, Presented at AIAA $32^{nd}$ Aerospace Sciences Meeting Reno, NV, Jan. 1994.
  • Eggleton, C., Ferziger, J., Pulliam, T.,Moderate Reynolds Number Entry Flow and Boundary Layer Approximations For a Viscoelastic Fluid, Physics of Fluids A, Feb. 1994.
  • Gooch, C.F., MacCormack, R.W., Pulliam, T.H., Solution of the Navier-Stokes Equations Using State-vector Splitting, Submitted J. of Comp. Physics, 1994.
  • Feng, D., Pulliam, T.H., Tensor-GMRES Method For Large Sparse System of Nonlinear Equations, SIAM Journal of Optimization,Vol. 7, Issue 3, Aug. 1997. also RIACS Tech. Report 94.12, 1994
  • Eggleton, C., Pulliam, T., and Ferziger, J., Numerical Simulation of Viscoelastic Flow using Flux Difference Splitting at Moderate Reynolds Number, Journal of Non-Newtonian Fluid Mechanics, 64, pp 269-298, 1996.
  • Pulliam, T., Rogers, S., Barth, T., Practical Aspects of Krylov Subspace Based - Iterative Methods In CFD,Agard Conference Proceedings AGARD CP, 21-21, AGARD 77th Fluid Dynamics Panel Symposium on Progress and Challenges in CFD Methods and Algorithms, Seville, Spain, 2-5 October 1995
  • Feng, D., Pulliam, T.H., An All-At-Once Reduced Hessian SQP Scheme For Aerodynamics Design Optimization, RIACS Tech. Report 95-19, 1995
  • Feng, D., Pulliam, T.H., Aerodynamic Design Optimization Via Reduced Hessian SQP With Solution Refining, RIACS Tech. Report 95-24, 1995
  • Pulliam, T., Implicit Methods for the Euler Equations, Handbook of Fluid Dynamics and Fluid Machinery, Vol. 2, pp. 1420-1430, Eds. J. Schetz and A. Fuhs, Pub. John Wiley and Sons, New York, 1996.
  • Jespersen, D., Pulliam, T.H., and Buning, Recent Enhancement to OVERFLOW, AIAA paper 97-0644 Presented at AIAA $35^{nd}$ Aerospace Sciences Meeting Reno, NV, Jan. 1997.
  • Rothe, P., Johnson, J., Barry, J., and Pulliam, T.,CFD Assessment with Difuser Data, FEDSM97-3026, 1997 ASME Fluids Engineering Division Summer Meeting, June 22-26, 1997.
  • MacCormack, R.W. and Pulliam, T., Assessment Of A New Numerical Procedure For Fluid Dynamics, AIAA paper 98-2821 Presented at the 29th AIAA Fluid Dynamics Conference, Albuquerque, New Mexico, June 15-18, 1998.
  • Buning, Pieter G, Jespersen, Dennis C, Pulliam, Thomas H, Chan, William M, Slotnick, Jeffrey P, Krist, S E, Renze, Kevin J OVERFLOW User Manual Research report, NASA Langley Research Center, 1998
  • Pulliam, T., MacCormack, R.W. and Venkateswaran, S, Convergence Characteristics of Various Approximate Factorizations, Lecture Notes in Physics, Sixteenth International Conference on Numerical Methods in Fluid Dynamics, ISBN 1616-6361, Springer, Vol. 515, 1998.
  • Delanaye, M., Aftosmis, M.J., Berger, M.J., Liu, Y., and Pulliam, T.H., Automatic Hybrid-Cartesian Grid Generation for High Reynolds Number Flows Around Complex Geometries,AIAA 99-0777 Presented at 37th AIAA Aerospace Sciences Meeting, Reno, NV, Jan. 1999.
  • Zingg, D.W., De Rango, S., Numec, M., and Pulliam, T.H., Comparison of Several Spatial Descretizations for the Navier-Stokes Equations, JCP 160, pp 683-704, 2000, also AIAA 99-3260, Presented at the 14th AIAA Computational Fluid Dynamics Conference, Norfolk, VA, July 1999.
  • Pulliam, T.H., Kutler, K. and Rossow, V, Harvard Lomax: His Quiet Legacy to CFD, Presented at the 14th AIAA Computational Fluid Dynamics Conference, Norfolk, VA, July 1999.
  • Lomax, H., Pulliam, T.H. and Zingg, D.W., Fundamentals of Computational Fluid Dynamics, Scientific Computation, Spinger-Verlag, Berlin, 2001. 249 pp. ISBN 3-540-41607-2
  • Walsh, Paul C. and Pulliam,Thomas H. The Effect of Turbulence Model Solution on Viscous Flow Problems AIAA 2001-1018, AIAA Aerospace Sciences Meeting, Reno NV, Jan. 2001
  • Holst, Terry L. and Pulliam,Thomas H. Aerodynamic Shape Optimization Using A Real-Number-Encoded Genetic Algorithm AIAA 2001-2473, June, 2001
  • Nemec, M., Zingg, D.W., and Pulliam, T.H., Multi-Point and Multi-Objective Aerodynamic Shape Optimization, AIAA Paper 2002-5548, 9th AIAA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, Atlanta, Sept. 2002. Also AIAA Journal 2004, Vol. 42 No 6. 1057-1065
  • Holst, T. L. and Pulliam, T. H., Transonic Wing Shape Optimization Using a Genetic Algorithm, Presented at Symposium Transsonicum IV, Göttingen, Germany, September 2-6, 2002.
  • Pandya, S.A., Venkateswaran, S., Pulliam, T.H., Implementation of Preconditioned Dual-Time Procedures in OVERFLOW AIAA 2003-0072, AIAA 41st Aerospace Sciences Meeting, Reno, NV, Jan 2003.
  • Pulliam, T.H., Nemec, M., Holst, T.L. and Zingg, D.W. Comparison of Genetic and Adjoint Methods for Multi-Objective Viscous Airfoil Optimizations AIAA 2003-0298, AIAA 41st Aerospace Sciences Meeting, Reno, NV, Jan 2003.
  • Holst, T. L and Pulliam, T. H., Evaluation of Genetic Algorithm Concepts Using Model Problems, Part I: Single-Objective Optimization, NASA/TM-2003-212812, December 2003.
  • Holst, T. L and Pulliam, T. H., Evaluation of Genetic Algorithm Concepts Using Model Problems, Part II: Multi-Objective Optimization, NASA/TM-2003-212813, December 2003.
  • Nemec, M., Aftosmis, M., and Pulliam T., CAD-Based Aeroynamic Design of Complex Configurations Using a Cartesian Method Computational Fluid Dynamics 2004, Proceedings of the Third International Conference on Computational Fluid Dynamics, ICCFD 3, Toronto, 12-16 July 2004, Eds. C. Groth and D. W. Zingg, Springer-Verlag, Berlin, 2006, pg. 699-704 Also:AIAA 2004-0113, AIAA 42st Aerospace Sciences Meeting, Reno, NV, Jan 2004.
  • Nemec, M., Aftosmis, M., Murman, S., and Pulliam T., Adjoint Formulation for an Embedded-Boundary Cartesian Method $43^{rd}$ AIAA Aerospace Sciences Meeting, Jan 2005, Reno NV also NAS Tecnical Report, nas-05-008, NASA Ames Research Center, 2005.
  • Nelson, A., Nemec, M., Aftosmis, M., and Pulliam T., Aerodynamic Design Optimization of Rocket Control Surface Geometery Using Cartesian Methods and CAD Geometry AIAA 2005-2836$23^{rd}$ AIAA Applied Aerodynamics Conference, Toronto, CA, June 2005.
  • Nelson, A., Alonso, J., and Pulliam T., Multi-Fidelity Aerodynamic Optimization Using Treed Meta-Models AIAA 2007-4057$25^{rd}$ AIAA Applied Aerodynamics Conference, Miami, FL, June 2007.
  • Zingg, D.W. Nemec, M., Pulliam, T.H., A Comparative Evaluation of Genetic and Gradient-based Algorithms Applied to Aerodynamic Optimization Revue Européenne de Mécanique Numérique, Vol. 17/1-2, pp 103-126, European Journal of Computational Mechanics, 2008.
  • Wissink, A.M., Sitaraman, J., Sankaran, V., Mavriplis, D.J., Pulliam, T.H., A Multi-Code Python-Based Infrastructure for Overset CFD with Adaptive Catresian Grids AIAA 2008-0927, AIAA 46th Aerospace Sciences Meeting, Reno, NV, Jan 2008.
  • Potsdam M., Pulliam, T.H., Turbulence Modeling Treatment for Rotocraft Wakes Presented at AHS Aeromechanics Specialist's Meeting, San Francisco, CA, Jan. 23-25, 2008
  • Pulliam, T.H.,Early Development of Implicit Methods for Computational Fluid Dynamics at NASA Ames Computers & Fluids, 38, p 491-495, 2008
  • Holst, T., Pulliam, T.H., Overset Solution Adaptive Grid Approach Applied to Hovering Rotorcraft Flows AIAA-2009-3519,27th AIAA Applied Aerodynamics Conference, San Antonio, Texas, June 2009
  • Pulliam,T.H., Jespersen, D.C., Large Scale Aerodynamic Calculation on Pleiades $21^{st}$ International Conference on Parallel Computational Fluids Dynamics, Moffett Field, Ca., May 18-22, 2009
  • Holst, T., Pulliam, T.H.,Optimization of Overset Solution Adaptive Grids for Hovering Rotorcraft Flows AHS Specialist Conference on Aeromechanics, Fishermans Wharf, San Francisco, CA, Jan. 2010
  • Nelson, A.J., Pulliam, T.H., Multi-Fidelity Treed Kriging Aerodynamic Database Modeling and Optimization, Submitted Journal of Aerospace Computing, Information, and Communication, 2010
  • Sclafani,A., Vassberg,J., Rumsey,C., DeHaan,M., Pulliam,T., Drag Prediction for the NASA CRM Wing/Body/Tail Using CFL3D and OVERFLOW on an Overset Mesh, Journal of Aircraft, Vol 51, issue 4 on pages 1101-1117, 2014, also AIAA-2010-4219, AIAA 40th Fluid Dynamics Conference and Exhibit, Chicago, Illinois, June 28 - July 1, 2010
  • Wissink, A., Kamkar, S., Pulliam T., Sitaraman, J., Sankaran, V., Cartesian Adaptive Mesh Refinement for Rotorcraft Wake Resolution, AIAA-2010-4554, AIAA 40th Fluid Dynamics Conference and Exhibit, Chicago, Illinois, June 28 - July 1, 2010
  • Pulliam, T.H., Development of Implicit Methods in CFD NASA Ames Research Center 1970's - 1980's, Computers & Fluids, 41, p 65-71, 2011
  • Zilliac, G., Pulliam, T., Rivers, M., Delgado, M., Halcomb, N., Zerr, J., A Comparison of the Measured and Computed Skin Friction Distribution on the Common Research Model, AIAA 2011-1129, Presented at the 49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, Orlando, Fl., 2011
  • Leffell, J., Pulliam, T., Grid and Timestep Requirements to Accurately & Efficiently Resolve Flow around a Rigid Flapping Airfoil using OVERFLOW, AIAA 2011-573, Presented at the 49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, Orlando, Fl., 2011
  • Sclafani, A.J. Slotnick, J.P., Vassberg, J.C., Pulliam, T.H., and Lee, H.C., OVERFLOW Analysis of the NASA Trap Wing Model from the First High Lift Prediction Workshop, AIAA 2011-866,Presented at 49th AIAA Aerospace Sciences Meeting, APA-3: 1st AIAA CFD High Lift Prediction Workshop I, Orlando, FL., January 2011
  • Lee, H.C., Pulliam,T.H., Studying the Effects of Grid Generation Strategies and Grid Adaption on Airplane Geometries using OVERFLOW, AIAA 2011-3985, 20th AIAA Computational Fluid Dynamics Conference, June 27-30, 2011, Honolulu, Hawaii
  • Pulliam. T.H., High Order Accurate Finite-Difference Methods: as seen in OVERFLOW AIAA 2011-3851,20th AIAA Computational Fluid Dynamics Conference, June 27 - 30, 2011, Honolulu, Hawaii
  • Rogers, S.E, Pulliam. T.H., Computational Challenges in Simulating Powered Flight of the Orion Launch Abort Vehicle, AIAA 2011-3339,29th AIAA Applied Aerodynamics Conference, June 27-30, 2011, Honolulu, Hawaii
  • Buning, P.G., Pulliam, T.H., Cartesian Off-Body Grid Adaption for Viscous Time-Accurate Flow Simulations, AIAA 2011-3693,20th AIAA Computational Fluid Dynamics Conference, June 27-30, 2011, Honolulu, Hawaii
  • Sclafani, A.J., Slotnick, J.P., Vassberg, J.C., Pulliam, T.H., Extended OVERFLOW Analysis of the NASA Trap Wing Wind Tunnel Model,AIAA Paper 2012-2919, 30th AIAA Applied Aerodynamics Conference New Orleans, Louisiana, 25-28 June 2012
  • Leffell, J., Murman, S.M., Pulliam, T.H., An Extension of the Time-Spectral Method to Overset Solvers, AIAA 2013-0637, 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 7-10 January 2013, Grapevine, Texas
  • Sclafani, A.J., Pulliam, T.H., High Lift OVERFLOW Analysis of the DLR F11 Wind Tunnel Model 2nd AIAA CFD High Lift Prediction Workshop, San Diego, California, 22-23 June 2013
  • Yoon, S., Pulliam, T.H. and Chaderjian, N. Simulations of XV-15 Rotor Flows in Hover Using OVERFLOW Fifth Decennial AHS Aeromechanics Specialists Conference, San Francisco, CA, January 22-24, 2014
  • Leffell, J, Murman, S, and Pulliam. T., Time-Spectral OVERFLOW Simulations for Rotorcraft Applications, AIAA 2014-3258,32nd AIAA Applied Aerodynamics Conference, AIAA Aviation and Aeronautics Forum and Exposition 2014, Rotorcraft Aerodynamics, June 20, 2014
  • Pulliam. T, Sclafani, A., High Lift OVERFLOW Analysis of the DLR F11 Wind Tunnel Model, To be presented at 32nd AIAA Applied Aerodynamics Conference, AIAA Aviation and Aeronautics Forum and Exposition 2014,Special Session: 2nd High-Lift Prediction Workshop III, June 18, 2014
  • Sclafani A.J, DeHaan, M.A., Vassberg, J.C., Rumsey. C.L., Pulliam, T.H., Drag Prediction for the Common Research Model Using CFL3D and OVERFLOW Journal of Aircraft: 1-17, 10.2514/1.C032571, April 2014.
  • Childs, Marissa L.,Pulliam, Thomas H., Jespersen, Dennis C. OVERFLOW Turbulence Model Resource Verification Results NAS Technical Report NAS-2014-03, June 2014, NASA Ames Research Center, Moffett Field, CA
  • Pulliam, T.H. and Zingg, D.W., Fundamentals Algorithms in Computational Fluid Dynamics, Scientific Computation, Spinger-Verlag, Berlin, 2014. 211 pp., ISBN 978-3-319-05053-9
  • Yoon, S. Chaderjian, N., Pulliam, T., and Holst, T., Effect of Turbulence Models on Hovering Rotor Flows, AIAA 2015-2766 45th AIAA Fluid Dynamics Conference, Dallas, Texas, June 22-26, 2015
  • Yoon, S., Lee, H., Pulliam, T., Computational Analysis of Multi-Rotor Flows, AIAA 2016-0812 Presented at SciTech 2016, 54th AIAA Aerospace Sciences Meeting, San Diego, CA, January 03-08, 2016
  • Roozeboom, N., Lee, H., Simurda, L., Zilliac, G, Pulliam, T., Comparison of Experimental Surface and Flow Field Measurements to Computational Results of the Juncture Flow Model (JFM), AIAA 2016-1558 Presented at SciTech 2016, 54th AIAA Aerospace Sciences Meeting, San Diego, CA, January 03-08, 2016.
  • Yoon, S., Lee, H., Pulliam, T., Computational Study of Flow Interactions in Coaxial Rotors, Presented at AHS Technical Meeting on Aeromechanics Design for Vertical Lift, San Francisco, CA, Jan. 20-22, 2016.
  • Chiew, J., Pulliam, T., Stability Analysis of Dual Time Stepping, AIAA 2016-3963 Aviation 2016, Washington, D.C. June 13-17, 2016.
  • Buning,P. G. Pulliam T., Near-Body Grid Adaption for Overset Grids, AIAA 2016-3326 Aviation 2016, Washington, D.C. June 13-17, 2016.
  • Sclafani, A., Serrano, L., DeHaan, M., Vassberg, J., Pulliam, T., OVERFLOW Analysis of the NASA CRM WB and WBNP Aero-Elastic Configurations, To be presented at Drag Preciction Workshop 6, AIAA Aviation and Aeronautics Forum and Exposition 2016, June 2016, Washington, D.C.

Awards

  • Arthur S. Flemming Award : For Outstanding Individual Performance in The Federal Government, April 27, 1989.
  • NASA Exceptional Scientific Achievement Medal : For Being A Leader In The Development Of Original And Powerful Numerical Methods And Computer Codes For Simulating The Flow About Aircraft In All Phases Of Flight And For Using These Techniques To Carry Out Fundamental Scientific Research In Diverse Fields Of Basic Fluid Mechanics., Nov. 9, 1989.
  • Ames Associate Fellow For 1989. For exceptional scientific/engineering research achievement as a NASA Ames Research Center scientist.
  • Aviation Week & Space Technology Laurels 1989: For Outstanding Contributions To The Field Of Computational Fluid Dynamics That Have Been Significant To Many Important Aerospace Research Projects, Jan. 1, 1989.
  • AIAA Associate Fellow, 1991.
  • NASA Exceptional Service Medal 2013: For outstanding achievements that have profoundly advanced the field of computational fludi dynamics and it's application to challenging aerspace problems, July 18, 2013.
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