Three-dimensional incompressible flow calculations using the characteristic based split (CBS) scheme

• Published in: International journal for numerical methods in fluids Vol. 44; no. 11; pp. 1207 - 1229
• Main Authors: Nithiarasu, P., Mathur, J. S., Weatherill, N. P., Morgan, K.
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 20.04.2004; Wiley
• Subjects: artificial compressibility; CBS scheme; Computational methods in fluid dynamics; Exact sciences and technology; explicit; Flows through porous media; Fluid dynamics; Fundamental areas of phenomenology (including applications); incompressible flow; Nonhomogeneous flows; Physics; porous media flow; semi-implicit; velocity correction; Non isothermal flow; Algorithms; Porous medium flow; Three dimensional flow; Computational fluid dynamics; Digital simulation; Incompressible fluid; Cavity flow; Viscous fluids; Numerical convergence; Mesh generation; Navier-Stokes equations
• ISSN: 0271-2091; 1097-0363
• DOI: 10.1002/fld.682

In this paper, the characteristic based split scheme is employed for the solution of three‐dimensional incompressible viscous flow problems on unstructured meshes. Many algorithm related issues are discussed. Fully explicit and semiimplicit forms of the scheme are explained and employed in the calculation of both isothermal and nonisothermal incompressible flows simulation. The extension of the scheme to porous medium flows is also demonstrated with relevant examples. Copyright © 2004 John Wiley & Sons, Ltd.