Laminar Heat Transfer From the Stagnation Region of a Circular Cylinder at Re=140 000

Jan G. Wissink and Wolfgang Rodi ()
Additional contact information
Jan G. Wissink: University of Karlsruhe, Institute for Hydromechanics

A chapter in High Performance Computing in Science and Engineering '09, 2010, pp 255-264 from Springer

Abstract: Abstract Direct Numerical Simulations (DNS) of flow over and heat transfer to the stagnation region of a circular cylinder have been performed at a Reynolds number of Re D =140 000 - based on the far field velocity and the diameter of the cylinder D -. To avoid the formation of a vortex street, behind the cylinder a splitter plate was introduced. The computations were carried out on the NEC SX-8 using up to 192 processors and 746.5 million grid points. Two simulations were performed: A two-dimensional, fully laminar simulation to obtain a base-line solution and a fully three-dimensional simulation to address the influence of oncoming free-stream fluctuations on the heat transfer from the stagnation region of the heated cylinder. The incoming free-stream turbulence stems from a separate simulation of isotropic turbulence in a box. Compared to the fully laminar simulation, the addition of free-stream fluctuations at the inflow plane was found to lead to an increase in heat transfer in the stagnation region of the cylinder by 66%.

Keywords: Heat Transfer; Nusselt Number; Circular Cylinder; Direct Numerical Simulation; Turbine Blade (search for similar items in EconPapers)
Date: 2010
References: Add references at CitEc
Citations:

There are no downloads for this item, see the EconPapers FAQ for hints about obtaining it.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-04665-0_18

Ordering information: This item can be ordered from
http://www.springer.com/9783642046650

DOI: 10.1007/978-3-642-04665-0_18

Access Statistics for this chapter

More chapters in Springer Books from Springer
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().