Theory-based prediction of separation angle and peak pressure for laminar separated hypersonic compression corner flows

2021 ◽  
Vol 33 (8) ◽  
pp. 086106
Author(s):  
Xian-Dong Li ◽  
Yong-Liang Yu ◽  
Lin Bao
Keyword(s):  
Peak Pressure ◽  
Separation Angle ◽  
Compression Corner ◽  
Corner Flows

scholarly journals Numerical Solutions of Supersonic and Hypersonic Laminar Compression Corner Flows

AIAA Journal ◽  
1976 ◽  
Vol 14 (4) ◽  
pp. 475-481 ◽  
Author(s):  
C.M. Hung ◽  
R.W. MacCormack
Keyword(s):  
Numerical Solutions ◽  
Compression Corner ◽  
Corner Flows

scholarly journals SHOCK EXCURSION IN TRANSONIC CONVEX-CORNER FLOWS

2016 ◽  
Vol 42 ◽  
pp. 1660180
Author(s):  
KUNG-MING CHUNG ◽  
PO-HSIUNG CHANG ◽  
KEH-CHIN CHANG
Keyword(s):  
Shock Wave ◽  
Peak Pressure ◽  
Separation Bubble ◽  
Pressure Fluctuations ◽  
Typical Feature ◽  
Zero Crossing ◽  
Turning Angle ◽  
Convex Corner ◽  
Transonic Airfoil ◽  
Corner Flows

A typical feature on a transonic airfoil is associated with a quasi-normal shock on the upper surface. When a shock is strong enough, development of a separation bubble changes the flowfield significantly. High intensity of pressure fluctuations is associated with unsteady shock wave. An experimental study was conducted to investigate transonic convex-corner flows, including single- and round-convex corners. Peak pressure fluctuations and zero-crossing frequency are associated with incoming Mach number, total turning angle, and separation length. In the cases of R100 and R200, the level of zero-crossing frequency decreases with increasing turning angle as observed in the single convex-corner flows. An increase in the level of pressure fluctuations corresponds to lower zero-cross frequency. In the cases of R300, there is a roughly constant level of surface pressure fluctuations or the variation of pressure fluctuations with the turning angle is less significant. The zero-crossing frequency would be independent of turning angle in the cases of R300.

Numerical Simulation of Supersonic and Hypersonic Turbulent Compression Corner Flows

AIAA Journal ◽  
1977 ◽  
Vol 15 (3) ◽  
pp. 410-416 ◽  
Author(s):  
C. M. Hung ◽  
R. W. MacCormack
Keyword(s):  
Numerical Simulation ◽  
Compression Corner ◽  
Corner Flows

Computation of laminar hypersonic compression-corner flows

AIAA Journal ◽  
1991 ◽  
Vol 29 (7) ◽  
pp. 1108-1113 ◽  
Author(s):  
David H. Rudy ◽  
James L. Thomas ◽  
Ajay Kumar ◽  
Peter A. Gnoffo ◽  
Sukumar R. Chakravarthy
Keyword(s):  
Compression Corner ◽  
Corner Flows
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