Abstract
Direct numerical simulations are performed in nominally fully developed channel flow at global Mach and Reynolds numbers of 1.5 and 3000. A pressure — velocity — entropy form of the compressible Navier — Stokes equations is integrated using a fifth order compact upwind scheme for the Euler part, a fourth order Padé scheme for the viscous terms and a third — order low — storage Runge — Kutta time integration method. The work aims at increasing the insight into effects of compressibility. To this end the nature of fluctuating variables is investigated using scatter plots, while the structural effects of compressibility are analysed based on the Reynolds stress budgets and comparisons with their incompressible counterparts. DNS data of turbulent supersonic channel flow along permeable walls at M = 1.5 and Re = 3000 are used to analyze in which way wall permeability modifies the turbulence structure of the flow.
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Lechner, R., Sesterhenn, J., Friedrich, R. (2001). DNS of Turbulent Supersonic Channel Flow. In: Geurts, B.J., Friedrich, R., Métais, O. (eds) Direct and Large-Eddy Simulation IV. ERCOFTAC Series, vol 8. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1263-7_4
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DOI: https://doi.org/10.1007/978-94-017-1263-7_4
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-5893-5
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