The University of Southampton
University of Southampton Institutional Repository

A numerical study of turbulent supersonic isothermal-wall channel flow

Record type: Article

A study of compressible supersonic turbulent flow in a plane channel with isothermal walls has been performed using direct numerical simulation. Mach numbers, based on the bulk velocity and sound speed at the walls, of 1.5 and 3 are considered; Reynolds numbers, defined in terms of the centreline velocity and channel half-width, are of the order of 3000. Because of the relatively low Reynolds number, all of the relevant scales of motion can be captured, and no subgrid-scale or turbulence model is needed. The isothermal boundary conditions give rise to a flow that is strongly influenced by wall-normal gradients of mean density and temperature. These gradients are found to cause an enhanced streamwise coherence of the near-wall streaks, but not to seriously invalidate Morkovin's hypothesis : the magnitude of fluctuations of total temperature and especially pressure are much less than their mean values, and consequently the dominant compressibility effect is that due to mean property variations. The Van Driest transformation is found to be very successful at both Mach numbers, and when properly scaled, statistics are found to agree well with data from incompressible channel flow results.

Full text not available from this repository.

Citation

Coleman, Gary N., Kim, John and Moser, R.D. (1995) A numerical study of turbulent supersonic isothermal-wall channel flow Journal of Fluid Mechanics, 305, pp. 159-183. (doi:10.1017/S0022112095004587).

More information

Published date: 1995

Identifiers

Local EPrints ID: 71975
URI: http://eprints.soton.ac.uk/id/eprint/71975
ISSN: 0022-1120
PURE UUID: 5e86838f-a585-4ac9-a10d-cf1f5f10ae02

Catalogue record

Date deposited: 13 Jan 2010
Last modified: 18 Jul 2017 23:57

Export record

Altmetrics

Contributors

Author: Gary N. Coleman
Author: John Kim
Author: R.D. Moser

University divisions


Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×