Numerical Simulation of Receptivity Phenomena in Transitional Boundary-Layer Flows

AIAA Journal ◽  
1997 ◽  
Vol 35 (5) ◽  
pp. 789-795
Author(s):  
Scott H. Reitsma ◽  
Vincent P. Manno ◽  
Thomas R. Tureaud
Keyword(s):  
Numerical Simulation ◽  
Boundary Layer ◽  
Boundary Layer Flows ◽  
Transitional Boundary Layer

Numerical simulation of receptivity phenomena in transitional boundary-layer flows

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 789-795
Author(s):  
Scott H. Reitsma ◽  
Vincent P. Manno ◽  
Thomas F. Tureaud
Keyword(s):  
Numerical Simulation ◽  
Boundary Layer ◽  
Boundary Layer Flows ◽  
Transitional Boundary Layer

Calculation of transitional boundary-layer flows.

AIAA Journal ◽  
1973 ◽  
Vol 11 (4) ◽  
pp. 554-556 ◽  
Author(s):  
D. M. BUSHNELL ◽  
D. W. ALSTON
Keyword(s):  
Boundary Layer ◽  
Boundary Layer Flows ◽  
Transitional Boundary Layer

k-e Model for Predicting Transitional Boundary-Layer Flows Under Zero-Pressure Gradient

AIAA Journal ◽  
2001 ◽  
Vol 39 (9) ◽  
pp. 1699-1705 ◽  
Author(s):  
Seong Gu Baek ◽  
Myung Kyoon Chung ◽  
Hyo Jae Lim
Keyword(s):  
Boundary Layer ◽  
Pressure Gradient ◽  
Boundary Layer Flows ◽  
Transitional Boundary Layer

A numerical simulation of boundary-layer flows near shelterbelts

1995 ◽  
Vol 75 (1-2) ◽  
pp. 141-173 ◽  
Author(s):  
Hao Wang ◽  
Eugene S. Takle
Keyword(s):  
Numerical Simulation ◽  
Boundary Layer ◽  
Boundary Layer Flows

Prediction of laminar, transitional and turbulent flow regimes, based on three-equation k-ω turbulence model

2008 ◽  
Vol 112 (1134) ◽  
pp. 469-476 ◽  
Author(s):  
R. Taghavi-Zenouz ◽  
M. Salari ◽  
M. Etemadi
Keyword(s):  
Boundary Layer ◽  
Kinetic Energy ◽  
Wind Turbine ◽  
Flat Plate ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Freestream Turbulence ◽  
Boundary Layer Flows ◽  
Laminar Separation ◽  
Transitional Boundary Layer

Abstract A recently developed transitional model for boundary-layer flows has been examined on a flat plate and the well-known S809 wind turbine blade. Proposed numerical model tries to simulate streamwise fluctuations, induced by freestream turbulence, in pre-transitional boundary-layer flows by introducing an additional transport equation for laminar kinetic energy term. This new approach can be used for modeling of transitional flows which are exposed to both the freestream turbulence intensity and streamwise pressure gradient, which are known as the most dominant factors in occurrence of transition. Computational method of this model is based on the solution of the Reynolds averaged Navier-Stokes (RANS) equations and the eddy-viscosity concept. The model includes three transport equations of laminar kinetic energy, turbulent kinetic energy and dissipation rate frequency. The present model is capable of predicting either natural or bypass transitional mechanisms, which may occur in attached boundary-layer flows. In addition, the model can simulate transition in the separated free shear layers and the subsequent turbulent re-attachment to form a laminar separation bubble. Flat plate was exposed to different freestream turbulence intensities and streamwise pressure gradients. Wind turbine blade was examined under two different Reynolds numbers, with one of them suitable for the occurrence of laminar separation bubbles on its surfaces. To evaluate the performance of this new model in resolving transitional boundary-layer flows, final results have been compared to those obtained through application of conventional turbulence models. Comparison of final results for the flat plate and the S809 aerofoil with available experimental data show very close agreements.

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