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您的检索式：作者名="LIU CangLi"
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| 1 | Numerical simulation of the hydrodynamic instability experiments and flow mixing显示文摘Based on the numerical methods of volume of fluid (VOF) and piecewise parabolic method (PPM) and parallel circumstance of Message Passing Interface (MPI),a parallel multi-viscosity-fluid hydrodynamic code MVPPM (Multi-Viscosity-Fluid Piecewise Parabolic Method) is developed and performed to study the hydrodynamic instability and flow mixing. Firstly,the MVPPM code is verified and validated by simulating three instability cases:The first one is a Riemann problem of viscous flow on the shock tube; the second one is the hydrodynamic instability and mixing of gaseous flows under re-shocks; the third one is a half height experiment of interfacial instability,which is conducted on the AWE's shock tube. By comparing the numerical results with experimental data,good agreement is achieved. Then the MVPPM code is applied to simulate the two cases of the interfacial instabilities of jelly models acceler-ated by explosion products of a gaseous explosive mixture (GEM),which are adopted in our experi-ments. The first is implosive dynamic interfacial instability of cylindrical symmetry and mixing. The evolving process of inner and outer interfaces,and the late distribution of mixing mass caused by Rayleigh-Taylor (RT) instability in the center of different radius are given. The second is jelly layer ex-periment which is initialized with one periodic perturbation with different amplitude and wave length. It reveals the complex processes of evolution of interface,and presents the displacement of front face of jelly layer,bubble head and top of spike relative to initial equilibrium position vs. time. The numerical results are in excellent agreement with that experimental images,and show that the amplitude of initial perturbations affects the evolvement of fluid mixing zone (FMZ) growth rate extremely,especially at late times. | BAI JingSong WANG Tao LI Ping ZOU LiYong LIU CangLi | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，12： | 5 |
| 2 | Fiber polarization control based on a fast locating algorithm显示文摘 | Huang Zhimeng Liu Cangli Li Jianfeng | 2013 | Appl Opt2013，52，27： | 1 |
| 3 | Energy convergence effect and jet phenomenon of shock-heavy spherical bubble interaction显示文摘We present computational results on the evolution of the shock-accelerated heavy bubbles surrounded by nitrogen with the Atwood number At = 0.497–0.677 and the emphasis is on the jet phenomenon caused by the shock focusing. The multi-fluid Eulerian equation is solved by a finite volume method based on MUSCL-Hancock approach. Based on the numerical schlieren and the distributions of density and pressure, it is found that there are three typical jet structures(outward jet, no jet, inward jet) for different combinations of gas mixture inside the bubble which determine the position of shock focusing relative to the downstream pole of the heavy bubble(upstream of the pole, at the pole, downstream the pole). Compared with the inward jet, the velocity of outward jet is obviously larger. As At increases, the moment of jet formation is postponed, and the maximal values and magnifications of pressure and density increase distinctly. Therefore, the energy convergence effects are heavily enhanced with the increase of bubble gas density. | ZOU LiYong ZHAI ZhiGang LIU JinHong WANG YanPing LIU CangLi | 2015 | Science China(Physics,Mechanics & Astronomy)2015，58，12： | 1 |
| 4 | A research study on the spallation strength of LY12 aluminum under the pre-compression condition显示文摘To pre-compress the disk-shaped LY12 samples along the radial direction can be done with the aid of overstress assembly by heating or by mechanical clamping,which can also generate the deviatoric stress fields under different states.The spallation signals of these pre-compressed samples are measured by VISAR in the light-gas gun shock experiments.The experimental results show that even under the same impact velocity,the pullback amplitudes of the velocity at the free surface of the samples vary significantly.According to the experimental data,we propose a distinct concept that the material spallation strength is closely related to the deviatoric stress fields in the material.Based on the numerical simulation,we develop a damage constitutive model,which reveals that the deviatoric stress reduces the tensile threshold of the void growth.The numerical investigations also demonstrate that the spallation strength decreases as pre-compression increases.The experimental idea proposed in this paper can also be used to study the spallation process in other structures. | ShiWen Zhang CangLi Liu QingZhong Li JinSong Hua Qiao Liu | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，3： | 0 |
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