Control of the ventilated supercavity on the maneuvering trajectory

• We improve the maneuvering supercavity model.
• The ventilation control system of supercavity is modeled.
• The control algorithm is developed to dominate supercavity dimensions.
• Control simulations of supercavity are carried out on the maneuvering trajectory.
• The optimal control variables and scheme are proposed.

Dimension control of ventilated supercavity is the premise of realizing the controlling and maneuvering of supercavitating vehicle by regulating hydrodynamic distribution. The ventilation control system is modeled using control valve with equal percentage flow characteristic. Based on the control system model and the maneuvering supercavity model, the control algorithm is developed to dominate supercavity dimensions on the maneuvering trajectory. Control simulations are carried out using the algorithm, and control variables are evaluated. By means of Pearson correlation analysis, weights of control variables are quantitatively analyzed to propose the optimal control variable and control scheme. The algorithm is finally proved to be feasible by simulations.