基于CFD技术的船舶机舱空气速度场数值模拟

A Numerical Simulation Method of Air Velocity Field in Ship Engine Room Based on CFD Technology

摘要: 文章提出了船舶机舱通风的CFD数值模拟方法。首先建立起流场的基本控制方程，然后通过流体控制方程的离散化，使用GAMBIT软件建立了船舶机舱的基本物理模型，并根据供气量优化了机舱进气口分布。将物理模型建立导入FLUENT，合理选择模型的边界条件，获得模型的仿真数值解。最后，以不同通风方式下的空气流量分布为例，对各种方案的特点进行比较分析，得出最优通风方案。本文提出的方法对于优化船舶机房通风具有重要的理论和现实意义。

Abstract: This paper presents a CFD numerical simulation method for ship E/R ventilation. Through the discretization of the fluid control equation, the basic physical model of the engine room is estab-lished by using GAMBIT software, and the air intake of the engine room is optimized according to the air supply quantity. The physical model is established into FLUENT, and the boundary condition, the solution method and the precision of the model are selected reasonably. Finally, the air flow distribution in different ventilation modes is taken as an example, and the characteristics of each scheme are compared and analyzed, and the optimal ventilation scheme is obtained. The method proposed in this paper has important theoretical and practical significance for optimizing the ventilation of the ship room.