Turbulent Boundary Layers in Adverse Pressure Gradients
نویسندگان
چکیده
منابع مشابه
Coherent structures in turbulent boundary layers with adverse pressure gradients
The coherent structures in turbulent boundary layers (TBLs) subjected to adverse pressure gradients (APGs) were investigated by analyzing a database of direct numerical simulations. The equilibrium adverse pressure gradient flows were established by using a power law free-stream distribution. The population trends of the spanwise vortices show that the outer regions of the APG TBLs are densely ...
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Significant progress has been made towards understanding the large scale features of wall-bounded shear flow in zero pressure gradient (ZPG) turbulent boundary layers (TBL). Here we consider their effects in adverse pressure gradient (APG) flows where the pressure gradient parameter is held constant and Reynolds number is varied. This is done by documenting the changes in the mean velocity, str...
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Direct numerical simulations of the Navier–Stokes equations have been carried out with t § he objective of studying turbulent boundary layers in adverse pressure gradients. The boundary layer flows concerned are of the equilibrium type which makes the analysis simpler and the results can¨be compared with earlier experiments and simulations. This type of turbulent boundary layers a © lso permits...
متن کاملA parametric study of adverse pressure gradient turbulent boundary layers
There are many open questions regarding the behaviour of turbulent boundary layers subjected to pressure gradients and this is confounded by the large parameter space that may affect these flows. While there have been many valuable investigations conducted within this parameter space, there are still insufficient data to attempt to reduce this parameter space. Here, we consider a parametric stu...
متن کاملOn the streamwise evolution of turbulent boundary layers in arbitrary pressure gradients
A. E. PERRY, IVAN MARUSIC and M. B. JONES Journal of Fluid Mechanics / Volume 461 / June 2002, pp 61 91 DOI: 10.1017/S002211200200825X, Published online: 11 July 2002 Link to this article: http://journals.cambridge.org/abstract_S002211200200825X How to cite this article: A. E. PERRY, IVAN MARUSIC and M. B. JONES (2002). On the streamwise evolution of turbulent boundary layers in arbitrary pre...
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ژورنال
عنوان ژورنال: Journal of the Aeronautical Sciences
سال: 1954
ISSN: 1936-9956
DOI: 10.2514/8.2938