DOI: https://doi.org/10.26089/NumMet.v21r436

Computational aspects of mathematical modeling of the shallow water hydrobiological processes

Authors

  • A.I. Sukhinov
  • A.E. Chistyakov
  • V.N. Litvinov
  • A.V. Nikitina
  • Yu.V. Belova
  • A.A. Filina

Keywords:

Allee effect
taxis
mathematical model of population interaction
biogydrocenosis
parallel algorithm
modified data storage format
software complex
graphics accelerator

Abstract

Paper covers the research of nonlinear effects in population dynamics of the pelengas commercial fish of the Azov Sea taking into account the Allee effect, competition for resources, taxis, catching, spatial distribution of biogenic matter and detritus based on a multi-species model of plankton and fish interaction. Discrete analogue of developed model problem of water ecology, included in a software complex, were calculated using schemes of second order of accuracy taking into account the partial filling of computational cells. The system of grid equations of large dimension, arising at discretization, has been solved on the basis of adaptive modified alternately triangual variational method. Effective parallel algorithms were developed for numerical implementation of biological kinetics problem and oriented on multiprocessor computer system and NVIDIA Tesla K80 graphics accelerator with the data storage format modification. Due to it, the reproduction processes of biogeocenose populations have been analyzed in real and accelerated time.

New computational technologies

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Published

2020-12-20

Issue

Vol. 21 (2020): Issue 4.

Section

Methods and algorithms of computational mathematics and their applications

Author Biographies

A.I. Sukhinov

Don State Technical University,
Faculty IT Systems and Technologites
• Professor, Corresponding Member of RAS, Head of Department

A.E. Chistyakov

Don State Technical University,
Faculty IT Systems and Technologites
• Professor

V.N. Litvinov

Don State Agrarian University
Azov-Black Sea Engineering Institute,
• Head of Department

A.V. Nikitina

Southern Federal University
• Associate Professor

Yu.V. Belova

Don State Technical University
• Assistant

A.A. Filina

Supercomputers and Neurocomputers Research Center
• Researcher

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