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Wind-US Unstructured Flow Solutions for a Transonic Diffuser (2005)

Mohler, Stanley R., Jr.

In: CASI

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Publication Date: 2019-08-13

Description: The Wind-US Computational Fluid Dynamics flow solver computed flow solutions for a transonic diffusing duct. The calculations used an unstructured (hexahedral) grid. The Spalart-Allmaras turbulence model was used. Static pressures along the upper and lower wall agreed well with experiment, as did velocity profiles. The effect of the smoothing input parameters on convergence and solution accuracy was investigated. The meaning and proper use of these parameters are discussed for the benefit of Wind-US users. Finally, the unstructured solver is compared to the structured solver in terms of run times and solution accuracy.

Keywords: Fluid Mechanics and Thermodynamics

Type: NASA/CR-2005-213417 , AIAA Paper 2005-1004 , E-14939 , AIAA 43rd Aerospace Sciences Meeting and Exhibit; Jan 10, 2005 - Jan 13, 2005; Reno, NV; United States

Format: application/pdf

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