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An Interpolated Bounce Back Thermable Method for Simulating Solid Particles Dynamics in a Viscous Medium.
- Source :
-
International Journal of Mathematics & Physics . 2021, Vol. 12 Issue 2, p50-60. 11p. - Publication Year :
- 2021
-
Abstract
- In this paper we discuss the mathematical and computer modeling of non-isothermal two-phase flows with suspended particles. Natural convection between an outer cubical cavity and an inner hot sphere is investigated. To simulate heat fluxes loaded with particles, a thermal model of the lattice Boltzmann equation in combination with the interpolated bounce back method (TLBM-IBB) has been developed. In TLBM-IBB, IBB is used to process liquid-solid interfaces, and TLBM is used to simulate the heat flow of a fluid. The momentum exchange method is used to calculate the hydrodynamic force on the particle surface. Simulation performed for a range of Rayleigh numbers (105 - 106. The accuracy and efficiency of the existing method is demonstrated by the example of solving the test problem of natural convection around a stationary particle and three-dimensional compressible natural convection in a square cavity filled with air, which has a hot wall on the left and a cold wall on the right, and two horizontal walls are adiabatic. The results obtained are in good agreement with the experimental and numerical results of other authors. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 22187987
- Volume :
- 12
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- International Journal of Mathematics & Physics
- Publication Type :
- Academic Journal
- Accession number :
- 154495634
- Full Text :
- https://doi.org/10.26577/ijmph.2021.v12.i2.06