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从雷诺平均的非定常Navier-Stockes方程出发,利用时间相关法,采用MacCormark预估-校正两步显式格式,结合Baldwin-Lomax代数湍流模型,数值模拟了高速雷用喷管的内流场,预测了喷管的流场和性能。计算结果与参考文献上的实验结果相当吻合,表明本方法对计算喷管流场和性能非常有效。
Based on the Reynolds-averaged unsteady Navier-Stockes equation, the time-dependent method was used to simulate the internal flow field of a high-speed thunderstorm nozzle by using the MacCormark predictive-rectification two-step explicit format and the Baldwin-Lomax algebraic turbulence model. Predict nozzle flow field and performance. The calculated results are in good agreement with the experimental results in the references, indicating that this method is very effective in calculating the nozzle flow field and performance.