{"product_id":"graphite-ablation-and-thermal-response-simulation-under-arc-jet-flow-conditions-9781289165598","title":"Graphite Ablation and Thermal Response Simulation Under Arc-Jet Flow Conditions","description":"\u003cp\u003e • Author(s): Nasa Technical Reports Server (Ntrs) | Et Al | Y. K. Chen\u003cbr\u003e • Publisher: Bibliogov\u003cbr\u003e • Publisher Imprint: Bibliogov\u003cbr\u003e • BISAC: General\u003c\/p\u003e\u003cp\u003eThe 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.\u003c\/p\u003e","brand":"Bibliogov","offers":[{"title":"Paperback","offer_id":47596402704535,"sku":"9781289165598","price":1336.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3471\/1191\/files\/9781289165598.webp?v=1774993621","url":"https:\/\/atlanticbooks.com\/products\/graphite-ablation-and-thermal-response-simulation-under-arc-jet-flow-conditions-9781289165598","provider":"Atlantic Books","version":"1.0","type":"link"}