A METHOD OF CALCULATING THE ADDED MASS OF UNDERWATER VEHICLE IN DIRECT FLIGHT BY CFD
AUV is a highly nonstandard equipment,and the theoretical calculation can not accurately calculate the added mass of AU Vs with different shapes in direct direction.In this paper,a CFD method based on commercial software ANSYS fluent is proposed,which is different from the traditional CFD method based on dynamic grid.This method does not need to use dynamic grid,which reduces the grid requirements and greatly improves the calculation speed while ensuring the calculation accuracy.In order to verify the accuracy of this method,CFD simulation and theoretical calculation of standard ellipsoid were carried out respectively.The deviation between the added mass value obtained by this method and the theoretical value is less than 3％.At the beginning of the design,the method can be used to calculate the added mass of AUV with arbitrary shape in direct direction,and the result is reliable.
AUVCFDEllipsoidUniformly accelerated linear motionAdded mass
万方数据
维普
