Numerical simulation of Görtler vortices in hypersonic compression ramps

2005 ◽  
Vol 34 (2) ◽  
pp. 225-247 ◽  
Author(s):  
S. Navarro-Martinez ◽  
O.R. Tutty
Keyword(s):  
Numerical Simulation ◽  
Görtler Vortices ◽  
Gortler Vortices ◽  
Compression Ramps

Görtler Vortices in Hypersonic Flow on Compression Ramps

AIAA Journal ◽  
2019 ◽  
Vol 57 (9) ◽  
pp. 3874-3884 ◽  
Author(s):  
Shibin Cao ◽  
Igor Klioutchnikov ◽  
Herbert Olivier
Keyword(s):  
Hypersonic Flow ◽  
Görtler Vortices ◽  
Gortler Vortices ◽  
Compression Ramps

Heat transfer enhancement via Görtler flow with spatial numerical simulation

2017 ◽  
Vol 27 (1) ◽  
pp. 189-209 ◽  
Author(s):  
Vinicius Malatesta ◽  
Josuel Kruppa Rogenski ◽  
Leandro Franco de Souza
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Boundary Layer ◽  
Numerical Method ◽  
Layer Structure ◽  
Heat Transfer Process ◽  
Content Type ◽  
Transfer Rates ◽  
Görtler Vortices ◽  
Gortler Vortices

Purpose The centrifugal instability mechanism of boundary layers over concave surfaces is responsible for the development of quasi-periodic, counter-rotating vortices aligned in a streamwise direction known as Görtler vortices. By distorting the boundary layer structure in both the spanwise and the wall-normal directions, Görtler vortices may modify heat transfer rates. The purpose of this study is to conduct spatial numerical simulation experiments based on a vorticity–velocity formulation of the incompressible Navier–Stokes system of equations to quantify the role of the transition in the heat transfer process. Design/methodology/approach Experiments are conducted using an in-house, parallel, message-passing code. Compact finite difference approximations and a spectral method are used to approximate spatial derivatives. A fourth-order Runge–Kutta method is adopted for time integration. The Poisson equation is solved using a geometric multigrid method. Findings Results show that the numerical method can capture the physics of transitional flows over concave geometries. They also show that the heat transfer rates in the late stages of the transition may be greater than those for either laminar or turbulent ones. Originality/value The numerical method can be considered as a robust alternative to investigate heat transfer properties in transitional boundary layer flows over concave surfaces.

Investigation of weakly-nonlinear development of unsteady Görtler vortices

2010 ◽  
Vol 17 (4) ◽  
pp. 455-481 ◽  
Author(s):  
A. V. Boiko ◽  
A. V. Ivanov ◽  
Yu. S. Kachanov ◽  
D. A. Mischenko
Keyword(s):  
Weakly Nonlinear ◽  
Nonlinear Development ◽  
Görtler Vortices ◽  
Gortler Vortices

On the formation of Taylor–Görtler vortices in RMF-driven spin-up flows

2011 ◽  
Vol 52 (1) ◽  
pp. 1-10 ◽  
Author(s):  
T. Vogt ◽  
I. Grants ◽  
D. Räbiger ◽  
S. Eckert ◽  
G. Gerbeth
Keyword(s):  
Görtler Vortices ◽  
Gortler Vortices
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