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Direct numerical simulation of transitional flow at high Mach number coupled with a wall heating model

Redford, J.A., Sandham, N.D. and Roberts, G.T. (2010) Direct numerical simulation of transitional flow at high Mach number coupled with a wall heating model Computers & Fluids, 45, pp. 37-46. (doi:10.1016/j.compfluid.2010.11.024).

Record type: Article

Abstract

In transitional and turbulent high speed boundary-layer flows the wall thermal boundary conditions play an important role and in many cases an assumption of a constant temperature or a specified heat flux may not be appropriate for numerical simulations. In this paper we extend a formulation for direct numerical simulation of compressible flows to include a thin plate that is thermally fully coupled to the flow. Even without such thermal coupling compressible flows with shock waves and turbulence represent a challenge for numerical methods. In this paper we review the scaling properties of algorithms, based on explicit high-order finite differencing combined with shock capturing, that are suitable for dealing with such flows. An application is then considered in which an isolated roughness element is of sufficient height to trigger transition in the presence of acoustic forcing. With the thermal wall model included it is observed that the plate heats up sufficiently during the simulation for the transition process to be halted and the flow consequently re-laminarises.

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More information

Published date: November 2010
Keywords: boundary layer transition, wall heating, roughness, laminar–turbulent transition, supersonic flow, heat transfer
Organisations: Aerodynamics & Flight Mechanics, Engineering Sciences

Identifiers

Local EPrints ID: 171001
URI: http://eprints.soton.ac.uk/id/eprint/171001
ISSN: 0045-7930
PURE UUID: 2c257c64-0dae-4bb0-a322-91e13f87a9c1

Catalogue record

Date deposited: 12 Jan 2011 15:14
Last modified: 18 Jul 2017 12:16

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