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Graphite Ablation and Thermal Response Simulation Under ARC-Jet Flow Conditions (Paperback) Loot Price: R359
Discovery Miles 3 590
Graphite Ablation and Thermal Response Simulation Under ARC-Jet Flow Conditions (Paperback): Y.K. Chen

Graphite Ablation and Thermal Response Simulation Under ARC-Jet Flow Conditions (Paperback)

Y.K. Chen

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Loot Price R359 Discovery Miles 3 590

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The Two-dimensional Implicit Thermal Response and Ablation program, TITAN, was developed and integrated with a Navier-Stokes solver, GIANTS, for multidimensional ablation and shape change simulation of thermal protection systems in hypersonic flow environments. The governing equations in both codes are demoralized using the same finite-volume approximation with a general body-fitted coordinate system. Time-dependent solutions are achieved by an implicit time marching technique using Gauess-Siedel line relaxation with alternating sweeps. As the first part of a code validation study, this paper compares TITAN-GIANTS predictions with thermal response and recession data obtained from arc-jet tests recently conducted in the Interaction Heating Facility (IHF) at NASA Ames Research Center. The test models are graphite sphere-cones. Graphite was selected as a test material to minimize the uncertainties from material properties. Recession and thermal response data were obtained from two separate arc-jet test series. The first series was at a heat flux where graphite ablation is mainly due to sublimation, and the second series was at a relatively low heat flux where recession is the result of diffusion-controlled oxidation. Ablation and thermal response solutions for both sets of conditions, as calculated by TITAN-GIANTS, are presented and discussed in detail. Predicted shape change and temperature histories generally agree well with the data obtained from the arc-jet tests.

General

Imprint: Bibliogov
Country of origin: United States
Release date: July 2013
First published: July 2013
Authors: Y.K. Chen
Dimensions: 246 x 189 x 1mm (L x W x T)
Format: Paperback - Trade
Pages: 22
ISBN-13: 978-1-289-16559-8
Categories: Books > Social sciences > Politics & government > General
LSN: 1-289-16559-9
Barcode: 9781289165598

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