Only the wind - in door near the working generator set is opened , and exhaust fan is installed in the middle of the cabin . the ventilation and heat dispersion are enhanced by the two methods , making the wind - in door move toward below and making exhaust fan move toward below 机组舱应只开启工作机组侧的进风口,且把抽风机设置在机组舱中部,使进风口靠下和使抽风机靠下均能增强机组的通风散热,但使进风口靠下是增强通风散热的主要影响因素。
Presently , in the design of the ventilation and heat dispersion of the cabin , only necessary wind quantity is considered simply , while detailed mode and efficiency of the ventilation and heat dispersion are not considered too . so maybe the resource is wasted by the equipment , while noise is increased and stealth ability is decreased 目前,在机组舱通风散热的设计中,只是简单地考虑了散热所需的风量,而没有考虑通风散热的具体方式和效率,这不但造成了整个装备对资源的浪费,同时还增加了机组舱的噪声和降低了机组舱的隐身能力。
To the cabin which is designed by the forth department chongqing communication college , the model which includes the air in the cabin , generator set and public muffler is built integer , meshed , and added by boundary condition and load . the normal k - model etc are used to be turbulence model of the air in cabin respectively , the turbulence model is calculated by simplef or simplen algorithm , and by the first order accurate msu or the second order accurate supg in advection discretization scheme 论文对舱内空气、发电机组和公用消声器进行了整体建模和网格划分,施加机组舱模型的边界条件和载荷,采用标准k -等多个模型来分别模拟机组舱通风散热的空气湍流流动,采用simplef和simplen两种不同的数值算法以及一阶msu和二阶supg的对流项分离方案来对流动模型进行运算。