计算力学学报2017，Vol.34Issue(5)：564-569,6.DOI:10.7511/jslx201705005
SPH方法研究空气在平板入水中的影响
Research on the effects of air during flat plate impacting with water using SPH method
摘要
Abstract
The air cushion produced by the interaction of flat bottom structures and fluids is a practical problem ,which happens on a moving body such as airplane or ship hitting water .Research on the formation and effects of air cushion improves the accurate measurement of loads on structures ,w hich is a challenge in simulation because it is the interaction among air ,water and solid .In this paper ,smoothed particle hydrodynamics (SPH) method is used for the simulation .First of all ,the SPH simulation results are compared with experimental results .Then ,the processes of air cushion formation and impact with water are described carefully .The kinetic energies of air ,water and plate are analyzed .Pressure field of water and pressure on the plate show the effects of air ,based on the comparison between with-air and without-air SPH simulation .The influences of plate width on the formation of air cushion and acceleration are investigated in the end .关键词
光滑粒子流体动力学/砰击/平板/空气垫/水Key words
smoothed particle hydrodynamics/impact/flat plate/air cushion/water分类
数理科学引用本文复制引用
闫蕊,徐绯,任选其..SPH方法研究空气在平板入水中的影响[J].计算力学学报,2017,34(5):564-569,6.基金项目
国家自然科学基金(11272266 ) （11272266 ）
航空基金(2013ZD53049)资助项目 . （2013ZD53049）
