✦ LIBER ✦

Simulation of penetrative convection with adaptive spectral domain decomposition method

✍ Scribed by K.L. Tse

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 162 KB
Volume: 33
Category: Article
ISSN: 0168-9274
DOI: 10.1016/s0168-9274(99)00092-6

No coin nor oath required. For personal study only.

✦ Synopsis

The penetrative convection problem with infinite domain is simulated by spectral collocation method. The single-domain formulation uses algebraic mapping while the multi-domain uses the C 1 interface condition with adaptive domain boundaries. The test on the advection-diffusion equation shows that the adaptive method can reduce the error significantly. When the two methods are applied to the Navier-Stokes equations with Boussinesq approximation, they give similar statistical results. However, the multi-domain approach is approximately 2.5 times faster in CPU time. Furthermore, the two methods do not have the drawbacks of Hermite functions used in previous work.

📜 SIMILAR VOLUMES

An adaptive domain decomposition method

An adaptive domain decomposition method for simulation of transport in porous media

✍ R. E. Hayes; P. A. Tanguy 📂 Article 📅 1988 🏛 Springer Netherlands 🌐 English ⚖ 594 KB

Domain decomposition with both spectral

Domain decomposition with both spectral and finite difference methods for the accurate computation of flows with shocks

✍ David A. Kopriva 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 752 KB

Computations of a laminar backward-facin

Computations of a laminar backward-facing step flow at Re=800 with a spectral domain decomposition method

✍ Jayant Keskar; D.A. Lyn 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 181 KB 👁 2 views

The two-dimensional laminar incompressible flow over a backward-facing step is computed using a spectral domain decomposition approach. A minimum number of subdomains (two) is used; high resolution being achieved by increasing the order of the basis Chebyshev polynomial. Results for the case of a Re