雾化水流溅抛水滴运动深化研究  

Investigation on the motion of splash droplets in atomized flow

作　　者：孙笑非[1] 刘士和[1] 

机构地区：[1]武汉大学水利水电学院,武汉430072

出　　处：《水动力学研究与进展（A辑）》2008年第1期61-66,共6页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金雅砻江水电开发联合研究基金重点项目(50539060)资助

摘　　要：雾化水流是水利枢纽高速泄流时所形成的一种特定的流动现象,溅水区则是雾流降雨强度最大的区域,其给工程带来的危害应加以特别关注。本文引用雨滴运动的研究成果对粒子的阻力系数进行修正,得到了溅抛水滴运动的阻力系数,而后又对溅抛水滴直径对溅抛长度的影响进行了初步探讨,加深了对溅水运动的认识。Atomized flow forms as an aerated jet from a high dam impacts against the downstream water surface at high speed. Of all the regions in the atomized flow the splash region is in the center of storm rainfall, which might cause certain damage to the hydropower stations. Therefore more attention should be paid to the splash region. In this paper the variation of drag coefficients of the splash droplets with the changes of Reynolds numbers is investigated, and the effect of the diameters of splash droplets on the splash length is also investigated.

关 键 词：雾化水流 溅水 阻力系数 

分 类 号：TV133[水利工程—水力学及河流动力学]