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   瞬态温度场模拟 的翻译结果: 查询用时:0.077秒
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瞬态温度场模拟
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  modelling of transient temperature field
     Modelling of Transient Temperature Field for DC Ground Electrode in Double-Layer Soil
     双层土壤直流接地极瞬态温度场模拟
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  相似匹配句对
     Computer Simulation in Temperature Field of the Quenching Process by the Magnetic Field
     磁淬火瞬态温度计算机模拟
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     NUMERICAL SIMULATION OF TEMPERATURE FIELD IN CYLINDER HEAD DURING UNSTATED PROCESS
     内燃机气缸盖瞬态温度数值模拟
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     3-D Simulation of Transient Welding Temperature Fields by FEM
     三维瞬态焊接温度的有限元模拟
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     Numerical simulation of transient temperature field of disc-pad brake
     盘式制动器瞬态温度的数值模拟
短句来源
     Numerical Simulation and Calculation for Transient Thermal Field of Drum Brake
     鼓式制动器瞬态温度数值模拟计算
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Based on a thermal model of monopropellant thrust chamber system including its components such as adiabatic frame, catalyst bed, nozzle etc., temperature simulation was carried out by FEM with axisymmetric unstructured Delaunay girds generated and transient temperature distribution. Thermo-soakback phenomena, electrical heating efficiency of catalyst bed and outer space radiation were analyzed. The results show that the insulation design of adiabatic frame and outer space radiation on nozzle can prevent blight...

Based on a thermal model of monopropellant thrust chamber system including its components such as adiabatic frame, catalyst bed, nozzle etc., temperature simulation was carried out by FEM with axisymmetric unstructured Delaunay girds generated and transient temperature distribution. Thermo-soakback phenomena, electrical heating efficiency of catalyst bed and outer space radiation were analyzed. The results show that the insulation design of adiabatic frame and outer space radiation on nozzle can prevent blight of thermo-soakback on electromagnetic brake and jet generator. It also shows that electrical heating is a reliable method which ensures a permissive temperature range can be maintained before work.

建立了单组元发动机推力室系统(包括结构部件如隔热框、催化床、喷管等)的传热模型。在此基础上,应用有限元数值计算的方法,将模型进行轴对称Delaunay非结构化网格剖分,并完成瞬态温度场的模拟计算,进行推力室在轨温度的数值仿真。结合计算结果分析了热回浸现象、催化床电加热效能以及外空间辐射换热等问题。最后指出,隔热框的防热设计和空间辐射散热有效地隔绝了热回浸对电磁阀和喷注器的不良影响,并论证了催化床的电热丝加热是保证催化床在工作前维持一定温度范围之内的可靠方法。

 
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