High-order accurate simulation of low-Mach laminar flow past two side-by-side cylinders using spectral difference method

• Published in: Computers & structures Vol. 87; no. 11; pp. 812 - 827
• Main Authors: Liang, Chunlei, Premasuthan, Sachin, Jameson, Antony
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Kidlington Elsevier Ltd 01.06.2009; Elsevier
• Subjects: Compressible flows; shock and detonation phenomena; Computational techniques; Curved wall boundary; Exact sciences and technology; Fluid dynamics; Fundamental areas of phenomenology (including applications); General theory; Mathematical methods in physics; Physics; Spectral difference method; Unstructured grid; Unstructured grid; Curved wall boundary; Spectral difference method; Compressible fluid; Unstructured mesh; Spectral method; Bluff body; Spacing; Slow flow; Experimental study; Boundary representation; Laminar flow; Subsonic flow; Wakes; Modelling; Curvature; Viscous fluids; Compressible flow; Mesh generation; Viscous flow
• ISSN: 0045-7949; 1879-2243
• DOI: 10.1016/j.compstruc.2008.12.016

This paper reports development of a two-dimensional solver for compressible viscous flow using spectral difference (SD) method and its applications on simulating laminar flow past two side-by-side cylinders at various spacings. The high-order spectral difference solver is based on unstructured quadrilateral grids. High-order curved wall boundary representation is developed for cylinders. Nine different spacings (center-to-center distance/diameter s = 1.1, 1.4, 1.5, 1.7, 2, 2.5, 3, 3.4 and 4) are investigated. The simulation results are compared to experimental results and other numerical results. As s increases, single bluff-body, flip-flopping, anti-symmetric and symmetric wake patterns are predicted.