A PRESSURE-BASED SOLVER FOR COMPRESSIBLE THREE-PHASE FLOW WITH PHASE CHANGE
Introduction Cavitation is a common phenomenon capturing the attention of industry and academia.In general,it results in negative and undesirable effect on structure,like erosion on structure.To reduce or avoid damage caused by cavitation,research works have been carried out for a long period of time,establishing several theories.Since a few practical solvers which consider the effect of phase change are available in OpenFOAM,most problems involving cavitation can be investigated through numerical method.However,recent research progress and difficulty in engineering introduce new requirements.On the one hand,cavitation near free surface has become a heat topic in the field of high speed hydrodynamics,requiring a solver able to deal with three phases,including liquid(water) and other two kinds of gas(vapor and non-condensable gas),as well as considering effect of phase change.On the other hand,in the interesting work of Genesh et al 1 a high temporal resolution X-ray device was used to investigate the shedding mechanism of cavity by measuring density inside,which proposes the concept of cavity shedding induced by shock,quite different from previous agreement that re-entry jet dominates the process of cavity shedding.To reflect the propagation of shock in numerical simulation,compressibility should be taken into consideration.Since none solver available can satisfy the demands above,a new useable one is in urgent need.
Cavitating Flow Shedding Mechanism Shock Propagation
BINGSHENG YE YIWEI WANG CHENGUANG HUANG JIAN HUANG
Institute of Mechanics,Chinese Academy of Sciences,Beijing,100190,China;School of Engineering Scienc Institute of Mechanics,Chinese Academy of Sciences,Beijing,100190,China
国际会议
The 13th OpenFOAM Workshop(第13届OpenFOAM国际研讨会)
上海
英文
150-152
2018-06-24（万方平台首次上网日期，不代表论文的发表时间）