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Numerical solution of some problems of hydromorphodynamics of flows with a free surface and a deformable bottom

The meeting of the seminar

«Supercomputer technologies

in science, education and industry»

Chairman of the organizing committee
Sadovnichy V.A. Sadovnichy V.A.
academician, rector of Lomonosov Moscow State University

Co-Chairs of the organizing committee
Voevodin Vl.V. Voevodin Vl.V.
Corr. RAS, Director of Research Computing Center of Moscow State University
Sokolov I.A. Sokolov I.A.
academician, dean of the faculty of Computational Mathematics and Cybernetics of Lomonosov Moscow State University
Tikhonravov A.V. Tikhonravov A.V.
D. in Physics and Mathematics, Professor, Research Computing Center of Moscow State University

Scientific Secretary of the seminar
Subin M.V. Shubin M.V.
Research Computing Center of Moscow State University

 

The seminar was organized on the basis of the Scientific and Educational Center «Supercomputer Technologies». The reports cover all aspects of the use of supercomputers, parallel computing systems and distributed data processing methods for solving large computational problems. The seminar has a pronounced interdisciplinary nature, however, the various nuances of using supercomputer technologies are of interest to researchers from various fields.

The seminar is supported by the Moscow Center of Fundamental and Applied Mathematics.

Researchers, teachers, graduate and undergraduate students are invited.

 


PROGRAM
16:20 (GMT+3)
Belikov V.V. Dr. Habil, Water Problems Institute of the Russian Academy of Sciences
Aleksyuk A.I. PhD, Water Problems Institute of the Russian Academy of Sciences
Borisova N.M. PhD, Water Problems Institute of the Russian Academy of Sciences
Vasilieva E.S. PhD, Water Problems Institute of the Russian Academy of Sciences
Glotko A.V. PhD, Water Problems Institute of the Russian Academy of Sciences

Numerical solution of some problems of hydromorphodynamics of flows with a free surface and a deformable bottom

A wide range of natural and man-made free-surface flows is considered:

  • river floods with inundation of residential areas;
  • wind-driven surge and tidal currents in river deltas and estuaries;
  • breakthrough waves of pressure hydraulic structures;
  • dam spillways;
  • rainwater runoff from mountain catchments and man-made landscapes;
  • river channel deformations;
  • breakthroughs Bends;
  • erosion of multi-fraction soils;
  • mudflows.

All problems are solved in the thin-layer (shallow water) approximation. A finite-volume algorithm similar to S.K. Godunov's is used to determine the fluxes through cell boundaries based on the exact solution of the Riemann problem for shallow water equations on a discontinuous bottom. The algorithm is parallelized on NVIDIA GPUs and implemented in the STREAM 2D CUDA software suite on unstructured triangular-quadrangular meshes. The feasibility of rewriting the code for a supercomputer is being explored.


The seminar will be held in person and as a webinar on the Kontur.Tolk platform.

To participate in the seminar, please enter your information in the Yandex form:

https://forms.yandex.ru/u/69ef5d444936390019e12c82

Please note that for better video communication quality, we recommend that you install the Kontur.Talk application in advance and access the conference through the application, NOT through your browser. Registration in Kontur.Talk is NOT required to participate in the conference.

Applications (desktop and mobile) can be downloaded at https://kontur.ru/talk#app.

If you plan to participate in person and you do not have a pass to MSU, you must fill out the form no later than May 5 (Tuesday). Please note that access will be allowed only through the southern entrance of the Second Building of MSU and only during the seminar.