关键词: 超空泡航行体, 滑行力, 时滞效应

Abstract: The underwater vehicles traveling inside a cavity, enable to reduce the drag and increase the speed.  In the course of operation, the tail of vehicle into contact with the cavity, as a result there is also a planing force acting back on the tail. The time delay effect of the cavity may affect the calculation of the planing force. It is compared in the paper the impact of the delay on the steady-state performance of supercavitating vehicles. And the result show that the time delay cannot change qualitatively the performance of supercavitating vehicles, and the time-delay model of the planing force can be used to simplify the calculation, and the time-delay model can be used for simulation and verification.

Key words: Supercavitating vehicle, planing force, time delay effect