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Propulsion Simulations Using Advanced Turbulence Models with the Unstructured Grid CFD Tool, TetrUSSA computational investigation has been completed to assess the capability of TetrUSS for exhaust nozzle flows. Three configurations were chosen for this study (1) an axisymmetric supersonic jet, (2) a transonic axisymmetric boattail with solid sting operated at different Reynolds number and Mach number, and (3) an isolated non-axisymmetric nacelle with a supersonic cruise nozzle. These configurations were chosen because existing experimental data provided a means for measuring the ability of TetrUSS for simulating complex nozzle flows. The main objective of this paper is to validate the implementation of advanced two-equation turbulence models in the unstructured-grid CFD code USM3D for propulsion flow cases. USM3D is the flow solver of the TetrUSS system. Three different turbulence models, namely, Menter Shear Stress Transport (SST), basic k epsilon, and the Spalart-Allmaras (SA) are used in the present study. The results are generally in agreement with other implementations of these models in structured-grid CFD codes. Results indicate that USM3D provides accurate simulations for complex aerodynamic configurations with propulsion integration.
Document ID
20040008282
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Abdol-Hamid, Khaled S.
(NASA Langley Research Center Hampton, VA, United States)
Frink, Neal T.
(NASA Langley Research Center Hampton, VA, United States)
Deere, Karen A.
(NASA Langley Research Center Hampton, VA, United States)
Pandya, Mohangna J.
(Swales Aerospace Hampton, VA, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
AIAA Paper 2004-0714
Meeting Information
Meeting: 42nd AIAA Aerospace Sciences Meeting and Exhibit
Location: Reno, NV
Country: United States
Start Date: January 5, 2004
End Date: January 8, 2004
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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