Analysis of the reentry-F experiment using detached eddy simulation

Michael Barnhardt, Graham V.Candler Candler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A computational analysis of the Mach 20 Reentry-F vehicle is performed in order to assess current capabilities for prediction of turbulent base heating. The detached eddy simulation (DES) methodology is employed to model the unsteady wake of the vehicle. Comparisons between traditional Reynolds-averaged Navier- Stokes (RANS) methods and DES reveal no improvement if the computational grid is insufficiently resolved. On the other hand, where RANS gains little from refinement of the grid, DES shows substantial improvement. Prior studies of the Reentry-F vehicle have generally neglected its slight angle of attack, an approach which fails to account for the asymmetry present in the forebody transition profile and base heating distribution. In this paper, we present a three-dimensional analysis of the entire vehicle to address these issues. The computed results reveal a strong dependence on vehicle orientation especially at lower altitudes where the vehicle experienced significant thermal distortion. Despite this difficulty, solution accuracy is demonstrated to lie within the bounds of the experimental uncertainty provided sufficient care is taken to define flight conditions. This suggests DES to be a capable tool for unsteady aerothermal analysis.

Original languageEnglish (US)
Title of host publicationProceedings of the 6th European Symposium on Aerothermodynamics for Space Vehicles
StatePublished - 2009
Event6th European Symposium Aerothermodynamics for Space Vehicles - Versailles, France
Duration: Nov 3 2008Nov 6 2008

Publication series

NameEuropean Space Agency, (Special Publication) ESA SP
Volume659 SP
ISSN (Print)0379-6566

Other

Other6th European Symposium Aerothermodynamics for Space Vehicles
CountryFrance
CityVersailles
Period11/3/0811/6/08

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    Barnhardt, M., & Candler, G. V. C. (2009). Analysis of the reentry-F experiment using detached eddy simulation. In Proceedings of the 6th European Symposium on Aerothermodynamics for Space Vehicles (European Space Agency, (Special Publication) ESA SP; Vol. 659 SP).