| 用湍流附面层方程计算喷管内的对流换热 |
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| 引用本文： | 于胜春,蔡体敏.用湍流附面层方程计算喷管内的对流换热[J].推进技术,1992,13(6):44-50. |
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| 作者姓名： | 于胜春 蔡体敏 |
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| 作者单位： | 西北工业大学
(于胜春)，西北工业大学(蔡体敏) |
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| 摘 要： | 在流场计算的基础上,运用Patankar-Spalding方法积分求解了湍流附面层控制方程组,从而得到了固体火箭发动机喷管内燃气与壁面之间的对流换热。其中在附面层靠近壁面的底层区使用了Gouette流分析,在壁面边界和自由流边界处引入了滑移值的概念,因此保证了计算结果的相对准确性。最后将本文的计算结果与巴兹公式的计算结果和实验结果进行了比较。
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| 关 键 词： | 火箭发动机 喷管 边界层 湍流 |
THE CALCULATION OF CONVECTIVE HEAT EXCHANGE IN NOZZLE WITH TURBUIENT BOUNDER LAYER EQUATIONS |
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| Yu Shengchun and Cai Timin.THE CALCULATION OF CONVECTIVE HEAT EXCHANGE IN NOZZLE WITH TURBUIENT BOUNDER LAYER EQUATIONS[J].Journal of Propulsion Technology,1992,13(6):44-50. |
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| Authors: | Yu Shengchun and Cai Timin |
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| Institution: | Northwestern Polytechnic University |
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| Abstract: | on the basis of flowfield calculation, the Coupled control equations of turbulent boundany layer can be solved by using Patankar-Spalding integral-melhod with six-point scheme to obtain the heat exchange between the hot gas and nozzle wall. Couette flow analysis is to applied to the near wall region, and the slip value conception is applied the wall boundary and free boundary.Thus the relative accuracy of the calculation results is ensured. At last, the calculation results of this paper arc compared with the experimental data and the calculation results of Bartz formula. |
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| Keywords: | Rocket nozzle Turbulent flow Boundary layer equation Convection heat transfer |
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