Autor:
Feldhusen, Kai ; Deiterding, Ralf ; Wagner, Claus
Współtwórca:
Korbicz, Józef - red. ; Uciński, Dariusz - red.
Tytuł:
A dynamically adaptive lattice Boltzmann method for thermal convection problems
Tytuł publikacji grupowej:
Temat i słowa kluczowe:
lattice Boltzmann method ; adaptive mesh refinement ; thermal convection ; incompressible
Abstract:
Utilizing the Boussinesq approximation, a double-population incompressible thermal lattice Boltzmann method (LBM) for forced and natural convection in two and three space dimensions is developed and validated. A block-structured dynamic adaptive mesh refinement (AMR) procedure tailored for the LBM is applied to enable computationally efficient simulations of moderate to high Rayleigh number flows which are characterized by a large scale disparity in boundary layers and free stream flow. ; As test cases, the analytically accessible problem of a two-dimensional (2D) forced convection flow through two porous plates and the non-Cartesian configuration of a heated rotating cylinder are considered. The objective of the latter is to advance the boundary conditions for an accurate treatment of curved boundaries and to demonstrate the effect on the solution.
Wydawca:
Zielona Góra: Uniwersytet Zielonogórski
Typ zasobu:
DOI:
Strony:
Źródło:
AMCS, volume 26, number 4 (2016) ; kliknij tutaj, żeby przejść