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Validation of Kestrel IDDES Simulations for SLS Transition AnalysisComplex computational simulations are needed to support the Space Launch System (SLS) program, and the fidelity of the computational results must be defended. More specifically, a number of databases are produced for the transition phase of flight, which occurs after the rocket clears the tower but before reaching transonic speeds. In an effort to reduce computational uncertainty, many of the computational parameters were altered to determine the sensitivity of the results to the value of the parameter and then updating the best practice procedures. The baseline routines were developed over many years through the maturation of the SLS program, and this paper delivers a detailed discussion of these baseline results. This section is followed by demonstration of perturbing some of the more significant parameters, including time step and turbulence model, and concluded with a summary of the herein determined best practices for such analysis.
Document ID
20210023996
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Brent W Pomeroy
(Langley Research Center Hampton, Virginia, United States)
Steven E Krist
(Langley Research Center Hampton, Virginia, United States)
Date Acquired
November 5, 2021
Subject Category
Aerodynamics
Meeting Information
Meeting: AIAA SciTech Forum
Location: San Diego, CA
Country: US
Start Date: January 3, 2022
End Date: January 7, 2022
Sponsors: American Institute of Aeronautics and Astronautics
Funding Number(s)
WBS: 981271.02.40.04.03.50
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
CFD
SLS
Transition
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