DNS of convective heat transfer in a rotating cylinder

Kunnen, R.P.J. and Geurts, B.J. and Clercx, H.J.H. (2010) DNS of convective heat transfer in a rotating cylinder. In: Seventh International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 8-10 September 2008, Trieste, Italy.

PDF
Restricted to UT campus only: Request a copy
701Kb

Abstract:	The effects of rotation on the convective heat transfer and flow structuring in a cylindrical volume of fluid is investigated with direct numerical simulation (DNS). A formulation of the discrete equations of motion in cylindrical coordinates is solved with finite-difference approximations. At constant Rayleigh (Ra; dimensionless temperature gradient) and Prandtl (Ro, the ratio of buoyancy and Coriolis forces, is varied between runs with 0.045 Ro ............ For Ro 1.2 we find the so~called large-scale circulation. At Ro 1.2 slender columnar vortical plumes are found. In a range of Ro heat transfer is increased by Ekman pumping in the vortical plumes. plumes.
Item Type:	Conference or Workshop Item
Copyright:	© 2010 Springer
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Mathematics of Computational Science (MaCS)
Link to this item:	http://purl.utwente.nl/publications/75957
Official URL:	http://dx.doi.org/10.1007/978-90-481-3652-0_56
Export this item as:	BibTeX EndNote HTML Citation Reference Manager

Show download statistics for this publication

Repository Staff Only: item control page