{"title":"Numerical Analysis of Thermal Conductivity of Non-Charring Material Ablation Carbon-Carbon and Graphite with Considering Chemical Reaction Effects, Mass Transfer and Surface Heat Transfer","authors":"H. Mohammadiun, A. Kianifar, A. Kargar","country":null,"institution":"","volume":43,"journal":"International Journal of Chemical and Materials Engineering","pagesStart":554,"pagesEnd":559,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/3934","abstract":"Nowadays, there is little information, concerning the\r\nheat shield systems, and this information is not completely reliable to\r\nuse in so many cases. for example, the precise calculation cannot be\r\ndone for various materials. In addition, the real scale test has two\r\ndisadvantages: high cost and low flexibility, and for each case we\r\nmust perform a new test. Hence, using numerical modeling program\r\nthat calculates the surface recession rate and interior temperature\r\ndistribution is necessary. Also, numerical solution of governing\r\nequation for non-charring material ablation is presented in order to\r\nanticipate the recession rate and the heat response of non-charring\r\nheat shields. the governing equation is nonlinear and the Newton-\r\nRafson method along with TDMA algorithm is used to solve this\r\nnonlinear equation system. Using Newton- Rafson method for\r\nsolving the governing equation is one of the advantages of the\r\nsolving method because this method is simple and it can be easily\r\ngeneralized to more difficult problems. The obtained results\r\ncompared with reliable sources in order to examine the accuracy of\r\ncompiling code.","references":null,"publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 43, 2010"}