Plenary Lecture

Numerical Modeling of Staggered Tube
Bundle in Duct

Prof. Hassan Shirvani
Professor of Engineering Design & Simulation
Head of Engineering Simulation & Analysis Group
Departmental Research convenor
Anglia Ruskin University
Faculty of Science & Technology
Victoria Road South
Chelmsford CM1 1LL
Email: h.shirvani@anglia.ac.uk

Abstract: A numerical study was conducted to investigate the flow and heat transfer of staggered tube bundle normal to the walls of a duct in turbulent crossflow, by applying RNG (Re-Normalization Group) k-ε model and utilizing Fluent. This model, in two-dimensional case, has led to superior global heat transfer agreement in compare to available experimental data. The maximum Reynolds numbers in range of Re=1000-50000, dimensionless height of duct-to-hydraulic diameter of tubes in range of L/D=0.3-2.0, and a fixed tube bundle arrangement, Sn/D=1.5 and Sp/D=1.2, were considered. According to the global heat transfer rate, friction factor, and spacing volume a better performance was obtained for high Reynolds number while low L/D, or vice versa. The local Nusselt number on tubes inside the duct was found unsymmetrical for Re=20000 and 50000 on front of third row tube of the bundle due to the three-dimensional vortices created inside the bundle. Moreover temperature and velocity contours were found consistent with other results.

Brief Biography of the Speaker:
Hassan was awarded his PhD (effective cooling of microelectronic equipment) in 1993 from the University of Bath; where he was employed for 10 years. During September 1996 Hassan joined Then Anglia Ruskin University as a lecturer and during 1997 he was seconded to Rolls Royce aviation through a Royal Academy of Engineering secondment fellowship. In 1998 Hassan returned to Anglia as a senior lecturer and was appointed a reader in collaborative research and Innovation in March 2000. Since 2000 Hassan has continued his research in collaboration with industry and he was appointed a professor of Engineering Design and Simulation in September 2005. Hassan is the Director of Engineering Analysis Simulation & Tribology (EAST) Group and has been responsible for many designs for industry. He has over 50 high impact publications; 2 books and two granted patents. He is a member of ImechE editorial board and in 2002 he was awarded the invention of the year award for his compact heat exchanger design and EEDA’s Business/University Collaboration award (2005) for the most entrepreneurial project.