Abstract
A novel theoretical model for solving the cavities in axisymmetric supercavitating flow past a slender conical body in subsonic fluid has been established in the present paper based on the slender body theory. The fluid compressibility has been taken into consideration in the present model. The nonlinear integral differential equation is derived for solving subsonic supercavitating flow. The numerical discrete method and the iterative process to solve the equation are presented in this paper. The critical Mach number are obtained to describe the subsonic flow. The results of supercavity shapes and the hydrodynamic coefficients obtained by the present theoretical model are compared with the results of other literatures, which verifies the present model have theoretical accuracy and broad application. Finally we discuss the compressibility effects on cavity shape, surface pressure distribution and drag coefficient in the subsonic liquid flow.
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