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Keywords: turbulence modeling
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Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2023, 145(4): 041017.
Paper No: TURBO-22-1001
Published Online: March 2, 2023
.... The optimum eddy viscosity μ t opt , a time-invariant field variable, is then used in place of the turbulence and transition models in a new RANS simulation. In previous studies [ 4 , 6 ], μ t opt was compared to the eddy viscosity μ t predicted by conventional turbulence models, both...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2022, 144(12): 121007.
Paper No: TURBO-22-1148
Published Online: September 19, 2022
...Xiao He; Fanzhou Zhao; Mehdi Vahdati The Spalart–Allmaras (SA) turbulence model is one of the most popular models applied to compressors, but it often over-predicts blockage size and hence under-predicts the stall margin. In this paper, a novel modification to the SA model is proposed to improve...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2022, 144(9): 091007.
Paper No: TURBO-21-1216
Published Online: March 4, 2022
... turbulence production rates, elucidating the different mechanisms involved and providing a unique database for turbulence modeling. Interaction of the tip flow with the ACGs modifies the highly anisotropic and inhomogeneous passage turbulence. In all cases, the TKE is high in the TLV center and shear layer...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2021, 143(9): 091008.
Paper No: TURBO-20-1385
Published Online: May 11, 2021
...David Roos Launchbury; Luca Mangani; Ernesto Casartelli; Francesco Del Citto In the industrial simulation of flow phenomena, turbulence modeling is of prime importance. Due to their low computational cost, Reynolds-averaged methods (RANS) are predominantly used for this purpose. However, eddy...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2020, 142(1): 011007.
Paper No: TURBO-19-1234
Published Online: December 17, 2019
... 2019 28 10 2019 29 10 2019 05 11 2019 computational fluid dynamics (CFD) fluid dynamics and heat transfer phenomena in compressor and turbine components of gas turbine engines heat transfer and film cooling turbulence modeling machine learning Gas turbine blades...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2011, 133(1): 011025.
Published Online: September 27, 2010
... is a significant challenge when applying Reynolds averaged Navier–Stokes turbulence modeling techniques. The current study compares the steady-state mixing plane predictions using four turbulence models for a centrifugal compressor stage with a tandem impeller and a “fish-tail” style discrete passage diffuser...