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.
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|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.
|Item Type:||Conference or Workshop Item|
|Copyright:||© 2010 Springer|
Electrical Engineering, Mathematics and Computer Science (EEMCS)
|Link to this item:||http://purl.utwente.nl/publications/75957|
|Export this item as:||BibTeX|
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