Title

LOCALIZED MESHLESS MODELING OF NATURAL-CONVECTIVE VISCOUS FLOWS

Authors

Authors

E. Divo;A. J. Kassab

Comments

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Abbreviated Journal Title

Numer Heat Tranf. B-Fundam.

Keywords

PARTIAL-DIFFERENTIAL-EQUATIONS; COMPUTATIONAL FLUID-DYNAMICS; FUNCTION; COLLOCATION METHOD; DATA APPROXIMATION SCHEME; NAVIER-STOKES EQUATIONS; GALERKIN MLPG APPROACH; RADIAL BASIS FUNCTIONS; SCATTERED DATA; INCOMPRESSIBLE-FLOW; DOMAIN DECOMPOSITION; Thermodynamics; Mechanics

Abstract

A localized radial-basis function (RBF) collocation meshless method is developed for natural-convection heat transfer problems in fully viscous fluid flows. The expansion method is based on the localized collocation of polynomial-augmented Hardy multiquadrics RBF, and it is efficiently formulated to generate derivative fields through simple inner products of small-order vectors. The solution of the Navier-Stokes equations is formulated using a third-order-accurate explicit fractional time-stepping method and a velocity-correction scheme. Several cases are studied and confirmed to attain accurate results when compared to classical benchmark solutions as well as numerical predictions provided by the commercial computational fluid dynamics code Fluent.

Journal Title

Numerical Heat Transfer Part B-Fundamentals

Volume

53

Issue/Number

6

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

487

Last Page

509

WOS Identifier

WOS:000270802200001

ISSN

1040-7790

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