Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/81861
Title: Direct Numerical Simulation of Self-Similar Turbulent Boundary Layers in Adverse Pressure Gradients
Authors: Skote, Martin
Henningson, D. S.
Henkes, R. A. W. M.
Keywords: Turbulent boundary layers
DNS
Issue Date: 1998
Source: Skote, M., Henningson, D. S., & Henkes, R. A. W. M. (1998). Direct Numerical Simulation of Self-Similar Turbulent Boundary Layers in Adverse Pressure Gradients. Flow, Turbulence and Combustion, 60(1), 47-85.
Series/Report no.: Flow, Turbulence and Combustion
Abstract: Direct numerical simulations of the Navier–Stokes equations have been carried out with the 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 also permits an analysis of the equation of motion to predict separation. The linear analysis based on the assumption of asymptotically high Reynolds number gives results that are not applicable to finite Reynolds number flows. A different non-linear approach is presented to obtain a useful relation between the freestream variation and other mean flow parameters. Comparison of turbulent statistics from the zero pressure gradient case and two adverse pressure gradient cases shows the development of an outer peak in the turbulent energy in agreement with experiment. The turbulent flows have also been investigated using a differential Reynolds stress model. Profiles for velocity and turbulence quantities obtained from the direct numerical simulations were used as initial data. The initial transients in the model predictions vanished rapidly. The model predictions are compared with the direct simulations and low Reynolds number effects are investigated.
Description: 42 p.
URI: https://hdl.handle.net/10356/81861
http://hdl.handle.net/10220/41007
ISSN: 1386-6184
DOI: 10.1023/A:1009934906108
Rights: © 1998 Kluwer Academic Publishers. This is the author created version of a work that has been peer reviewed and accepted for publication by Flow, Turbulence and Combustion, Kluwer Academic Publishers. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1023/A:1009934906108].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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