On boundary-layer transition in transonic flow

1993 ◽  
Vol 27 (3) ◽  
pp. 309-342 ◽  
Author(s):  
R. I. Bowles ◽  
F. T. Smith
Keyword(s):  
Boundary Layer ◽  
Transonic Flow ◽  
Boundary Layer Transition ◽  
Layer Transition

Transonic Drag Prediction on a DLR-F6 Transport Configuration

2012 ◽  
Vol 566 ◽  
pp. 676-679
Author(s):  
Qiu Ya Zheng ◽  
Jian Hu Feng ◽  
Zun Huan Shen
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Transonic Flow ◽  
Flow Fields ◽  
Boundary Layer Transition ◽  
Grid Refinement ◽  
Layer Transition ◽  
Total Drag ◽  
Drag Prediction ◽  
Block Structured

The accuracy of the drag prediction is investigated by simulating the transonic flow fields around the DLR-F6 wing-body (WB) and wing-body-nacelle-pylon (WNP) configurations. A series of coarse, medium, and fine density multi-block structured patched grids for both the DLR-F6 WB and WBNP configurations are employed to examine effect of grid on forces and incremental drag by adding the nacelle and pylon. The effect of boundary layer transition specification on the drag and incremental drag are also estimated. The results show that grid refinement decrease WB total drag by 6.8 drag counts, WBNP total drag by 15.3 drag counts. Specifying transition reduce WB total drag by 9.7 drag counts, WBNP total drag by 11 drag counts as compared to fully turbulent boundary layer computations, but transition has little effects on nacelle/pylon incremental drag.

scholarly journals Measurement of the boundary layer transition point over a 2-D LFC airfoil in transonic flow by liquid crystals

1994 ◽  
Vol 14 (Supplement1) ◽  
pp. 115-118
Author(s):  
Masayoshi Noguchi ◽  
Norikazu Sudani ◽  
Yoji Ishida ◽  
Mamoru Sato ◽  
Hiroshi Kanda
Keyword(s):  
Boundary Layer ◽  
Liquid Crystals ◽  
Transonic Flow ◽  
Transition Point ◽  
Boundary Layer Transition ◽  
Layer Transition

EXPERIMENTAL AND NUMERICAL INVESTIGATIONS OF BOUNDARY LAYER TRANSITION ON BLUNTED CONES AT SUPERSONIC FLOW

2010 ◽  
Vol 40 (3) ◽  
pp. 309-319 ◽  
Author(s):  
V. N. Brazhko ◽  
A. V. Vaganov ◽  
N. A. Kovaleva ◽  
N. P. Kolina ◽  
I. I. Lipatov
Keyword(s):  
Boundary Layer ◽  
Supersonic Flow ◽  
Boundary Layer Transition ◽  
Layer Transition ◽  
Numerical Investigations

Automatic control of laminar boundary-layer transition

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 85-90
Author(s):  
P. A. Nelson ◽  
M. C. M. Wright ◽  
J.-L. Rioual
Keyword(s):  
Boundary Layer ◽  
Automatic Control ◽  
Laminar Boundary Layer ◽  
Boundary Layer Transition ◽  
Layer Transition
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