Best Practices for Hover Calculations using Helios

Speaker: Andrew Wissink, NASA Ames Research Center
March 4, 2014

Presentation

Abstract

This talk will discuss rotary-wing hover calculations using Helios, the US Army's next-generation high-fidelity CFD/CSD rotorcraft simulation code. Helios uses a hybrid dual-mesh paradigm consisting of unstructured meshes near the body to capture viscous flow and complex geometry coupled with block structured Cartesian grids away from the body that capture the wake through a combination of high-order algorithms and adaptive mesh refinement (AMR). This talk, which was presented at the AHS Aeromechanics Specialists' Meeting in Jan 2014, will present an analysis of hover calculations with Helios examining the effect of different mesh resolutions, different reference frames, and DES turbulence modeling in the wake.

Biography

Andrew Wissink works for the US Army Aerodynamics Development Directorate located at NASA Ames Research Center. He is the lead developer of the Helios software. Before joining the Army in 2006, he worked at Lawrence Livermore National Lab from 1999-2006 and at NASA Ames from 1996-1999. He received his PhD from the University of Minnesota in 1997.

Seminar Participation

Attending In Person

For select seminars, you may wish to attend in-person if you are in the vicinity of NASA Ames Research Center. These AMS seminars are held in Building N258 in Room 127, just off the front lobby. Sessions available to attend in-person will be indicated in the announcement information. In-person participants without NASA badges will need a valid visitor badge (US citizenship or permanent residency is required) to enter the facility.

Join Us Online

To attend an AMS seminar, click on the Microsoft Teams link in the seminar description. You can connect through the desktop Teams App if you have it, or you can select "Watch on the Web Instead" to enter the meeting as a guest. Please ensure that you've muted your microphone in Teams before you select "Join Now" to enter the meeting lobby.