小攻角带空泡细长体的试验研究

An experimental study on cavitating slender body at small angles of attack

本文对小攻角带空泡细长体进行了较为细致的试验研究。其中包括水洞三分力天平的研制与测力系统的建立 ,空泡起始、发展空泡形态观测 ,空泡几何特征的测量和定常来流中空泡水动力的测量 ,对试验结果进行深入的研究和分析 ,以揭示其中某些内在的规律性 ,同时为进一步的研究提供经验。

The cavitation inception, the developed cavitation shape and the steady hydrodynamic forces and moment on cavitating slender axisymmetric bodies at small angles of attack in the K15 cavitation tunnel were experimentally studied and reported in the present paper. A three components strain balance was designed to measure the drag, lift and moment on axisymmetric cavitating bodies. Using the automatic sampling and processing system, the hydrodynamic coefficients were obtained. The results were investigated and analyzed in detail. This paper furnishes experience for the further investigation as well.