一种以不同攻角的舵验证伯努利方程的方法

A Method for Verifying Bernoulli Equation at Different Angles of Attack Rudder

使用前处理软件GAMBIT对不同攻角的舵进行建模与网格划分,利用CFD软件FLUENT对其工作状态进行数值模拟,并对不同攻角舵的周围物理场进行分析,完成了流体力学中伯努利(Bernoulli)方程的验证。模拟结果表明,即使不同攻角的舵,其周围流场中任意相同一条流线上不同点的位能、压能、动能之和基本稳定在一个常数周围,即Bernoulli方程在不同攻角舵上的任意一条流线上成立。

Modeling and mesh generation of rudders with different attack angles are performed using pre-processing software GAMBIT. The CFD software FLUENT is used to simulate its working state, and the physical field around the rudder with different attack angles is analyzed. The verification of Bernoulli equation in fluid mechanics has been completed. The simulation results show that even if the attack angles of the rudder is different, the sum of potential energy, pressure energy and kinetic energy at each point of the streamline in the flow field can approximately be stabilized around a constant. That is, the Bernoulli equation is established on any streamline of rudder with different attack angles.