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The index system of the operational effectiveness for cruise missile warhead is given. The effect function is introduced to quantitate the evaluation index, and the function equation is given to fit the cruise missile warhead. On this foundation, the evaluation model of operational effectiveness based on LMBP neural network is presented, then it is validated that the model has utilizing value by an...
A turbulent heat transferring model of the airflow in transportation was modeled, and the simulation result by it was compared with the measured data. The turbulent diffusion of droplets was simulated by stochastic model in Lagrangian coordinates, and PSIC method was used for simulating two direction coupling between air and droplets. The influence to the effect of atomization cooling by the diameter...
A mathematical model of flowing and heat trasferring was modeled to simulate the distribution of the temperature field of the air in high temperature and high humidity caving face in mine. Two equation turbulent model was used to close the basic governing equations. And the standard wall-function was used to correlate physical quantities near the wall and in the turbulence core area. The distribution...
The temperature field and the coupling mechanism of the airflow in transportation channel was analysed by the currency software FLUENT, based on the conservation principle, by using the single-phasic multicomponent model. The simulation result was also compared with the temperature measured in mine. Then the atomizer spray refrigeration process of two schemes were simulated, considered the turbulent...
The analysis of the temperature field of caving face is a main step to solve the heat disaster in mine. A mathematical model of air flow and heat trasferation in caving face was set to simulate the distribution law of the temperature field of caving face and the air returning corner. And the simulation result was compared with the data measured in mine. SIMPLE arithmetic which is based on staggered...
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