CFD simulations were performed to investigate boundary-layer control through bleed patches in an axisymmetric mixed-compression inlet in which the bleed patches are modeled by two global bleed boundary conditions (BCs). In one bleed BC, the locations of the bleed holes are discerned. In the other bleed BC, each row of bleed holes is modeled as a porous surface, where the number of bleed holes in each row is accounted for by adjusting the discharge coefficient to give the correct bleed rate. Results are presented for the predicted bleed rates, pressure on the cowl and centerbody surfaces, and the flow field. Comparisons were made with available experimental data. Also presented is a method based on one-dimensional isentropic and normal shock solutions to get the flow “started” in CFD simulations of critical flow in mixed-compression inlets. This computational study is based on the ensemble-averaged conservation equations of mass (continuity), momentum (compressible Navier-Stokes), and total energy closed by shear-stress transport (SST) turbulence model, where integration is to the wall. Solutions were generated by a cell-centered finite-volume method that uses third-order accurate flux-difference splitting of Roe with limiters, multigrid acceleration of a diagonalized ADI scheme with local time stepping, and patched/overlapped structured grids.
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ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
July 6–10, 2003
Honolulu, Hawaii, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-3697-5
PROCEEDINGS PAPER
CFD Simulations of an Axisymmetric Mixed-Compresssion Inlet With Bleed Through Discrete Holes
David B. Benson,
David B. Benson
Michigan State University, East Lansing, MI
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Tom I.-P. Shih,
Tom I.-P. Shih
Michigan State University, East Lansing, MI
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David O. Davis
David O. Davis
NASA Glenn Research Center, Cleveland, OH
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David B. Benson
Michigan State University, East Lansing, MI
Tom I.-P. Shih
Michigan State University, East Lansing, MI
David O. Davis
NASA Glenn Research Center, Cleveland, OH
Paper No:
FEDSM2003-45076, pp. 1681-1688; 8 pages
Published Online:
February 4, 2009
Citation
Benson, DB, Shih, TI, & Davis, DO. "CFD Simulations of an Axisymmetric Mixed-Compresssion Inlet With Bleed Through Discrete Holes." Proceedings of the ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. Volume 2: Symposia, Parts A, B, and C. Honolulu, Hawaii, USA. July 6–10, 2003. pp. 1681-1688. ASME. https://doi.org/10.1115/FEDSM2003-45076
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