CFD Simulations of the Space Launch System Ascent Aerodynamics and Booster Separation
CFD Simulations of the Space Launch System Ascent Aerodynamics and Booster Separation
- Neue Suche nach: Rogers, Stuart E.
- Neue Suche nach: Dalle, Derek J.
- Neue Suche nach: Chan, William M.
- Neue Suche nach: Rogers, Stuart E.
- Neue Suche nach: Dalle, Derek J.
- Neue Suche nach: Chan, William M.
This paper presents details of Computational Fluid Dynamic modeling of the Space Launch System during ascent. The primary focus of the paper is the flow simulation of the vehicle during ascent using the Overflow Navier-Stokes code. Computations of 739 first-stage flight conditions covering a range of Mach numbers, angles of attack, and roll angles were computed. The overset grid system contained 375 million grid points, and over 28 mil- lion CPU hours were used in the simulations. The simulations were run on the Pleiades supercomputer at the NASA Advanced Supercomputer Center at Ames Research Center. The data products from this work include integrated line-loads, surface pressure coefficients, venting pressures, and protuberance air-loads. Detailed comparisons were made of the aerodynamic performance predicted by Overflow and the wind-tunnel derived aero- dynamic database. A small number of the cases were run with two different turbulence models and with two differencing schemes. These results were used to quantify the sensitivity to the choice of the turbulence model and to the differencing scheme. The paper also introduces an effort to use the inviscid, unstructured Cartesian solver Cart3D to compute the aerodynamics during booster separation. Adaptive mesh refinement is being used to enable accurate simulations of sixteen booster-separation-motor plumes. The use of this tool is explored in preparation for building a booster-separation aerodynamic database.
Dokumentinformationen
CFD Simulations of the Space Launch System Ascent Aerodynamics and Booster Separation
AIAA Science and Technology Forum and Exposition (AIAA SciTech 2015) ; 2015 ; Kissimmee, FL, United States
2015-01-05
Aufsatz (Konferenz)
Keine Angabe
Englisch
Ähnliche Titel
| British Library Conference Proceedings | 2015
Space Launch System Ascent Static Aerodynamics Database Development (AIAA 2014-1254)
| British Library Conference Proceedings | 2014