A novel application of barycentric coordinates to Lagrange two-way coupled spray calculations. (1st January 2013)

• Record Type: Journal Article
• Authors: Sinigersky, A.; Koch, R.; Bauer, H-J.
• Is Part Of: Progress in computational fluid dynamics. Volume 13:Number 6(2013)
• Page Start: 337
• Page End: 345
• Publication Date: 2013-01-01
• Subjects: two-phase flow -- particle tracking -- two-way coupling -- unstructured mesh -- barycentric coordinates -- computational fluid dynamics; Fluid dynamics -- Data processing -- Periodicals; Fluid dynamics -- Mathematics -- Periodicals; 620.10640285
• Languages: English
• ISSNs: 1468-4349

Abstract

Modern CFD codes make possible the application of two-way coupled Lagrange particle tracking to complex unstructured meshes. State of the art tracking algorithms require the handling of arbitrary-shaped finite volume cells. By developing a new universal module for particle tracking, a novel technique has been introduced: association of the instantaneous particle location to the nearest vertex within a cell. The nearest-node method is then used to store the source terms arising from the spray calculation into vertex-based fields. In this novel method, barycentric coordinates are used for defining the vicinity of a vertex within a cell. The major benefits of this approach are its high computational efficiency and its ability to suppress the influence of mesh skewness on the quality of the results.