- Tytuł:
- Using the Lid-Driven Cavity Flow to Validate Moment-Based Boundary Conditions for the Lattice Boltzmann Equation
- Autorzy:
-
Mohammed, S.
Reis, T. - Powiązania:
- https://bibliotekanauki.pl/articles/140275.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
lattice Boltzmann equation
moment-based boundary conditions
multiple relaxation times
MRT
siatkowe równanie Boltzmanna
warunki brzegowe w odniesieniu do momentu
wielorelaksacyjne modele zderzeń w gazie sieciowym Boltzmanna - Opis:
- The accuracy of the Moment Method for imposing no-slip boundary conditions in the lattice Boltzmann algorithm is investigated numerically using lid-driven cavity flow. Boundary conditions are imposed directly upon the hydrodynamic moments of the lattice Boltzmann equations, rather than the distribution functions, to ensure the constraints are satisfied precisely at grid points. Both single and multiple relaxation time models are applied. The results are in excellent agreement with data obtained from state-of-the-art numerical methods and are shown to converge with second order accuracy in grid spacing.
- Źródło:
-
Archive of Mechanical Engineering; 2017, LXIV, 1; 57-74
0004-0738 - Pojawia się w:
- Archive of Mechanical Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł