APPLICATIONS: Mathematics
Chrage transfer processes in proton-helium collisions
Galstian Alexander
Moscow State Uiversity
DRIVER: In collaboration with German experimentalists a row of articles on charge transfer processes in proton-helium collisions was prepared for publication. In these collisions helium ion can appear in different quantum states. Different wave function models and perturbations theory approximations are discussed, including the second Born one.
STRATEGY: Cross section evaluation using Born approximation.
OBJECTIVE: Explanation of the experimental data using different process mechanisms; different mechanismтАЩs contribution to the cross section evaluation.
IMPACT: t is shown that the scattering of the backward emitted electrons with small scattering angles arises almost due to shake-off processes. The first Born approximation with helium wave function with strong electron-electron correlations is quite good to understand the scattering of electrons backward, but is insufficient to explain the forward scattering.
USAGE: Atomic ionization
AREA: Theoretical Physics, Mathematics
Simulation of complex turbulent flows using unstructured meshes
Duben Aleksey
Keldysh Institute of Applied Mathematics of RAS
DRIVER: Numerical investigation of aerodynamic and aeroacoustic charateristics of bluff aircraft elements and complex turbulent flows, design of better noise prediction tools for development of quieter aircrafts
STRATEGY: Providing computational experiments on different configurations, comparison experimental and numerical data, identification of optimal configurations in aerodynamic and aeroacoustic characteristics, design of better noise prediction tools for development of quieter aircrafts
OBJECTIVE: Investigation and improvement of aerodynamic and aeroacoustic characteristics of aircraft elements and complex turbulent flows; improvement, create more accurate and efficient and detailed experimental validation of numerical methods and noise prediction tools.
IMPACT: Improvement of aircraft aerodynamic characteristics; reduce of airframe noise in near and far field; efficient, accurate numerical methods and noise prediction tools.
USAGE: Aircraft industry; computational mathematics; computer science.
AREA: Aerophysics, Mathematics
3D simulations of high temperature radiative plasmas
Olkhovskaia Olga
Keldysh Institute of Applied Mathematics of RAS
DRIVER: Development of a scientific research code for high performance computing in the field of two-temperature raditive magnetohydrodynamics with dissipation in 3D complex geometry
STRATEGY: HPC numerical simulations
OBJECTIVE: Numerical and theoretical support of experiments in nuclear fusion, plasma technologies, intense radiation sources, and astrophysics
IMPACT: Solving important problems in development of prospective energy sources
USAGE: Controlled nuclear fusion, pulsed power, laser-plasma technology - computational fluid dynamics
AREA: Mathematics, Informatics, Plasma Physics
Ultrasound tomography in medicine
Romanov Sergey
Moscow State Uiversity
DRIVER: Non-destructive investigation of the internal structure of the object
STRATEGY: Solution of three-dimensional nonlinear coefficient inverse problems for wave equations on supercomputers
OBJECTIVE: Study of the internal structure of the object by wave sounding with super resolution
IMPACT: Break-throw technology of computer aided non-destructive diagnostics with wave soundin
USAGE: Ultrasound tomography in medicine, wave sounding of the surface layers of the Earth, industrial tomography
AREA: Algorithm and Software Development, Mathematics
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