不规则波中潜艇上浮运动的研究

Using the Java macro command function in CFD (computational fluid dynamics) software and based on the ITTC two parameter spectrum, the simulation of irregular head wave was realized. At the same time, the wave elimination function was realized by adding artificial damping term, so as to construct the numerical wave pool of irregular wave. Different significant wave heights and average periods were calculated and compared with the target value. It is found that the absolute value of the error is within 4% ~ 6%. Therefore, the feasibility of irregular wave simulation is effectively verified. Based on the constructed numerical wave pool, the floating motion of submarine under different significant wave heights in the waves was studied. It is found that after the submarine floats out of the water in irregular waves, the greater the wave height of significant wave height, the greater the vertical motion response of submarine and the greater the attitude angle of submarine body.