The　Analysis　and　Numerical　Simulation　of　Dynamical　Functions　of　the　Transpiration　Cooling　Control　System　with　Surface　Ablation  

作　　者：Xu Yanhou Wu Guangyu(Department of Modern Mechanics,University of Science & Technology of China, Hefei, 230026)Gong Guanghui(Graduate School of USTC, Beijing, 100039)Yang Xueshi(P.O.Box 142-206, Beijing, 100854) 

出　　处：《Journal of Systems Engineering and Electronics》1994年第1期44-52,共9页系统工程与电子技术（英文版）

摘　　要：This problem is a nonlinear control system with variable-domain distributed parameter. In this paper, the numerical simulation of the dynamic functions has been carried out by transforming this problem to a fixed-domain initial-boundary value problem, and the numerical results are obtained: (1) Thedistribution of temperature rises, the ablation amount and velocity of the thermal shield vary with the time; (2) The maximum ablating velocity, the time of the ablation beginning and ending related to thetranspiration quantity. This method succeeds in overcoming the difficulty brought up by variable domain.On the other hand, the critical transpiration quantity for the surface to start ablating, the maximum ablating velocity and time of the ablation ending are obtained theoretically.This problem is a nonlinear control system with variable-domain distributed parameter. In this paper, the numerical simulation of the dynamic functions has been carried out by transforming this problem to a fixed-domain initial-boundary value problem, and the numerical results are obtained: (1) Thedistribution of temperature rises, the ablation amount and velocity of the thermal shield vary with the time; (2) The maximum ablating velocity, the time of the ablation beginning and ending related to thetranspiration quantity. This method succeeds in overcoming the difficulty brought up by variable domain.On the other hand, the critical transpiration quantity for the surface to start ablating, the maximum ablating velocity and time of the ablation ending are obtained theoretically.

关 键 词：Ablation Transpiration cooling Variable domain Distributed parameter control NumericalSimulation 

分 类 号：TN792[电子电信—电路与系统]