CAJ | 학술논문

空泡形态控制问题是人工超空泡技术的关键环节之一，其核心问题在于通气参数的确定。对于定常超空泡，通气量要与泄气量相匹配。文章针对不受重力影响的人工超空泡通气规律问题进行研究，发现通气超空泡内部气体以环流形式流动。基于这种空泡内气体流动模式以及边界层理论提出了一种新的通气系数计算公式，并与国内外文献中的相关试验结果进行对比验证，一致性良好。该文提出的泄气理论模型可以为进一步研究人工超空泡通气规律提供一定参考。
공포형태공제문제시인공초공포기술적관건배절지일，기핵심문제재우통기삼수적학정。대우정상초공포，통기량요여설기량상필배。문장침대불수중력영향적인공초공포통기규률문제진행연구，발현통기초공포내부기체이배류형식류동。기우저충공포내기체류동모식이급변계층이론제출료일충신적통기계수계산공식，병여국내외문헌중적상관시험결과진행대비험증，일치성량호。해문제출적설기이론모형가이위진일보연구인공초공포통기규률제공일정삼고。
The control of cavity shape is one of the most critical links on ventilated supercavity. Its core prob-lem is to determine the ventilation parameters. For steady supercavitation, the ventilation rate should be e-qual to the gas leakage rate. This paper is concerned with the ventilation rule of supercavity in high Froude number flows and it is found that ventilated gas recirculate within the cavity. Based on this type of gas flow within the cavity and the theory of boundary layer, a new formula to calculate the ventilation coefficient is constructed. The calculating results are in good agreement with the experimental data in literatures in home and abroad. The gas leakage model in this paper may provide some references for further investigation on ventilation rule of supercavity.