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On One Method for Solving of a Non-stationary Fluid Flows with Free Surface

  • Valentin A. GushchinEmail author
  • Vasilii G. Kondakov
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11386)

Abstract

The flow of an incompressible Newtonian fluid with a free boundary in contact with air is considered. In this paper, there will be problems with a flat bottom for different initial and boundary conditions. The choice of these tasks is based on the principle of “from simple to complex”. This stage is considered as the initial and “debugging” in the development of the CABARET technique in application to the problems of incompressible fluid flows with a free surface. The system of equations describing such a model of the medium is a transformed Navier-Stokes system in a curvilinear coordinate system, such that at any instant the curvilinear transformation conforms the computational domain into a rectangle of unit height. The free surface is described by the kinematic boundary condition, which is obtained from the assumption that the liquid particles located on the interface between the two media remain on this boundary all the time. The comparison of numerical results with some theoretical data is discussed.

Keywords

CABARET method Free surface Numerical simulation 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Institute for Computer Aided Design Russian Academy of SciencesMoscowRussia
  2. 2.Nuclear Safety Institute of Russian Academy of SciencesMoscowRussia

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