摘要
采用DSMC方法对稀薄气体条件下大Rsyleigh数化Benard流进行了研究。研究表明:随Rayleigh数增加,Benard流从稳定的热传导状态向不稳定的对流状态过渡。当Rayleigh数增加到某个值时,Rayleigh-Benard流呈现出混沌特性。
The evolution of Benard convection flows at large Rayleigh numbers in rarefied gas is investigated with DSMC method. It is shown that with the Rayleigh number increasing, the Benard flows exhibit an unsteady transition from stable conductive state to convective state. When the Rayleigh number increases to a certain critical number, the RB system exhibits chaotic properties.
出处
《湖南理工学院学报（自然科学版）》
CAS
2003年第2期25-28,共4页
Journal of Hunan Institute of Science and Technology(Natural Sciences)
基金
国家自然科学基金资助项目(19902021)~~
