Three dimensional investigation of the shock train structure in a convergent-divergent nozzle
Three dimensional investigation of the shock train structure in a convergent-divergent nozzle
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DOI：
10.1016/j.actaastro.2014.09.002
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发表时间：
2014-12
影响因子：
3.5
通讯作者：
S. M. Mousavi;E. Roohi
中科院分区：
文献类型：
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作者：
S. M. Mousavi;E. Roohi
采用三维计算流体力学方法研究了收敛-扩张喷管中激波串的可压缩流动和湍流流动。主要目标是确定电击的行为、位置和次数。在此背景下，充分的多重网格初始化，雷诺应力湍流模型（RSM），并在Fluent软件中的网格自适应技术下的三维调查。结果表明，响应面解与实验数据吻合较好。研究了应用热源和改变入口总温对换热效果的影响.我们的模拟表明，在生热率和进气流的总温度的变化的冲击的起始点，冲击强度，最小压力，以及最大流量马赫数的影响。
Three-dimensional computational fluid dynamics analyses have been employed to study the compressible and turbulent flow of the shock train in a convergent–divergent nozzle. The primary goal is to determine the behavior, location, and number of shocks. In this context, full multi-grid initialization, Reynolds stress turbulence model (RSM), and the grid adaption techniques in the Fluent software are utilized under the 3D investigation. The results showed that RSM solution matches with the experimental data suitably. The effects of applying heat generation sources and changing inlet flow total temperature have been investigated. Our simulations showed that changes in the heat generation rate and total temperature of the intake flow influence on the starting point of shock, shock strength, minimum pressure, as well as the maximum flow Mach number.