二次冷喷流对喷管扩散段出口附近壁面有非常明显的冷却作用。
The numerical simulation also indicated that secondary cold gas injection had very obvious effects on the surface wall about the exit of the nozzle diffuse.
对分四段结构喷管的数值模拟的结果表明，相比不分段而言分段结构可减少一半冷却剂流量。
Numerical simulations of the transpiration cooling thruster with a four-section porous wall show that the design reduces of the required coolant flow by half.
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