某船舶机舱结构风道阻力数值模拟及优化设计

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中图分类号：U662.2 文献标志码：A

Abstract： In order to reduce the resistance in vent structure of a ship's engine room， CFD simulation software was adopted，and the k-ε turbulence model was applied to conduct numerical simulation analysis of the vent duct resistance.The detailed situationofthefow fieldandresistance distribution inside the ventstructure wasstudied to determie theareas with high resistance and their causes，and then the vent structure was optimized.The simulation results before and after optimization show that the adopted optimization measures have a good drag reduction effect， which can reduce the resistance of the initial designed vent duct by 22.6% ，and have certain reference value for the design of other vent structure.

Key words： engine room; vent structure； resistance; numerical simulation; optimization

1引言

通风系统是船舶最重要的系统之一I，而机舱又号称船舶的心脏，里面布置很多重要设备。（剩余3791字）