Immersed boundary method applied to single phase flow past crossing cylinders – Heat transfer

• Published in: Chemical engineering science Vol. 123; pp. 322 - 327
• Main Authors: Segers, Q.I.E., Kuipers, J.A.M., Deen, N.G.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 17.02.2015
• Subjects: Boundaries; Bubble column reactor; Chemical engineering; Computational fluid dynamics; Crossing cylinders; Cylinders; Direct numerical simulation; Fluid flow; Heat transfer; Immersed boundary method; Mathematical analysis; Mathematical models; Bubble column reactor; Immersed boundary method; Direct numerical simulation; Crossing cylinders; Heat transfer
• ISSN: 0009-2509; 1873-4405
• DOI: 10.1016/j.ces.2014.11.004

In this work we study heat transfer from a complex geometry consisting of crossing cylinders subject to forced convection. For several sizes of a wire-mesh inserts direct numerical simulations (DNS) are performed using an implicit implementation of the immersed boundary method (IBM). The local heat flux is studied and compared to the total heat flux. A heat transfer correlation is derived describing the Nusselt number as a function of the Reynolds number and the ratio of the pitch to the cylinder diameter, p/D. •Solid to fluid heat transfer is studied for crossing cylinders in the form of a wire mesh.•Nusselt numbers obtained from the simulations were used to generate a new correlation.