Application of software complex turbo problem solver to rayleigh-taylor instability modeling

All-Russian Conference with the School for Young Scientists “Thermophysics and Physical Hydrodynamics –2016”

Fortova, S.V.^1 ; Utkin, P.S.^1 ; Shepelev, V.V.^1

Institute for Computer Aided Design of the Russian Academy of Sciences, 19/18 2nd Brestskaya str., Moscow

123056, Russia^1

关键词: Comparative analysis;    Different densities;    High speed impact;    Hydrodynamic codes;    Interface deformation;    Rayleigh-Taylor instabilities;    Ring shaped structures;    Three-dimensional numerical simulations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/754/6/062003/pdf
DOI  :  10.1088/1742-6596/754/6/062003

来源: IOP

【 摘 要 】

The dynamic processes which take place during high-speed impact of two metal plates with different densities are investigated using three-dimensional numerical simulations. It is shown that as a result of the impact the Rayleigh-Taylor instability forms which leads to the formation of three-dimensional ring-shaped structures on the surface of the metal with smaller density. The comparative analysis of the metals interface deformation process with the use of different equations of state is performed. The numerical study is carried out by means of special software complex Turbo Problem Solver developed by the authors. The software complex Turbo Problem Solver implements generalized approach to the construction of hydrodynamic code for various computational fluid dynamics problems. Turbo Problem Solver provides several numerical schemes and software blocks to set initial, boundary conditions and mass forces. The solution of test problem about Rayleigh-Taylor instability growth and development for the case of very rapid density growth is also presented.