Based on the lattice Boltzmann method（LBM）,an improved pseudo-potential model,combined with a method of adding force term,is used to simulate the two-phase flows caused by a liquid droplet impacting on a liquid film...Based on the lattice Boltzmann method（LBM）,an improved pseudo-potential model,combined with a method of adding force term,is used to simulate the two-phase flows caused by a liquid droplet impacting on a liquid film.In this model,the different phases are treated as one fluid,and the interfaces between the vapor and liquid phases can be obtained by density value of the fluid.This variant of the LBM allows one to obtain the densities of vapor and liquid with high accuracy.The model is validated by an example of phase separation.The early stage of the impact of droplet on liquid film is simulated,and the results are qualitatively consistent with physical phenomena.展开更多
Sedimentation in dilute suspensions of charged particles with thin double layers was investigated. The study covered sedimentation in polydisperse systems at a large Péclet number. The pair-distribution equation...Sedimentation in dilute suspensions of charged particles with thin double layers was investigated. The study covered sedimentation in polydisperse systems at a large Péclet number. The pair-distribution equation was solved by a regular perturbation method, and it was found that generally speaking the sedimentation coefficient deviates slightly from that at the infinitely large Péclet number except that the double layer was very thin. The results were found to pos- sess much more diversities than the case of hard spheres.展开更多
In the present work two component dense semiclassical plasma of protons and electrons is considered.Microscopic and electrodynamic properties of the plasma by molecular dynamic simulation are investigated.For these pu...In the present work two component dense semiclassical plasma of protons and electrons is considered.Microscopic and electrodynamic properties of the plasma by molecular dynamic simulation are investigated.For these purposes semiclassical interparticle potential which takes into account quantum mechanical diffraction and symmetry effects is used.The considered range of density of plasma is n=1022cm^(−3)to n=1024cm^(−3).Fluctuations and dynamic dielectric functions were calculated using velocity autocorrelation functions.展开更多
基金Project supported by the National Natrual Science Foundation of China (Grant No.10872123)
文摘Based on the lattice Boltzmann method（LBM）,an improved pseudo-potential model,combined with a method of adding force term,is used to simulate the two-phase flows caused by a liquid droplet impacting on a liquid film.In this model,the different phases are treated as one fluid,and the interfaces between the vapor and liquid phases can be obtained by density value of the fluid.This variant of the LBM allows one to obtain the densities of vapor and liquid with high accuracy.The model is validated by an example of phase separation.The early stage of the impact of droplet on liquid film is simulated,and the results are qualitatively consistent with physical phenomena.
文摘Sedimentation in dilute suspensions of charged particles with thin double layers was investigated. The study covered sedimentation in polydisperse systems at a large Péclet number. The pair-distribution equation was solved by a regular perturbation method, and it was found that generally speaking the sedimentation coefficient deviates slightly from that at the infinitely large Péclet number except that the double layer was very thin. The results were found to pos- sess much more diversities than the case of hard spheres.
基金supported by the Ministry of Education and Science of the Republic of Kazakhstan under grant 1415/GF2(IPC 21)。
文摘In the present work two component dense semiclassical plasma of protons and electrons is considered.Microscopic and electrodynamic properties of the plasma by molecular dynamic simulation are investigated.For these purposes semiclassical interparticle potential which takes into account quantum mechanical diffraction and symmetry effects is used.The considered range of density of plasma is n=1022cm^(−3)to n=1024cm^(−3).Fluctuations and dynamic dielectric functions were calculated using velocity autocorrelation functions.
