摘要
本文描述了结构层板与冷却剂相互之间存在温差的发汗冷却计算模型，导出了层板发汗冷却控制方程。对定常控制方程的积分求解方法和超临界状态非定常控制方程的数值求解方法进行了探讨，例举了液体火箭发动机推力室壁采用液氧作为冷却剂的计算结果。计算结果表明，基本模型符合实际的物理过程，求解过程直观简捷。由于冷却机理的类似，其数学模型与计算方法也适用于多孔材料等其它形式的热控制装置的发汗冷却研究。
A transpiration cooling model of platelet device is presented and the cooling governing equation has been derived in this paper.Numerical calculation of the unsteady equation is performed for the supercritical condition and the analytical solution of the steady equation is obtained for both subcritical and supercritical conditions.As an example,the calculation for the transpiration cooling of rocket thrust chamber wall using LOX as coolant is presented.The result shows that the model agrees well with the real physical process and the solution of the governing equation is convenient.The mathematical model and the calculation method can be used for the devices of porous sintered material and other materials since the transpiration cooling mechanism is similar. [WT5”HZ〗
出处
《系统工程与电子技术》
EI
CSCD
1998年第5期40-45,54,共7页
Systems Engineering and Electronics
