Predictions of the 3D Unsteady Heat Transfer at Moving Droplets

M. Hase and B. Weigand
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M. Hase: University of Stuttgart, Institute of Aerospace Thermodynamics
B. Weigand: University of Stuttgart, Institute of Aerospace Thermodynamics

A chapter in High Performance Computing in Science and Engineering ’02, 2003, pp 299-310 from Springer

Abstract: Abstract A 3D numerical program for the transient simulation of the dynamic behavior of incompressible two-phase flows has been extended to the computation of heat transfer. In the program the VOF-method with interface reconstruction has been used for the calculation of the disperse phase. The governing equations and the implemented numerical model are described. Numerical results for a transient heat conduction problem of a rigid sphere show good agreement with analytical solutions. The predicted averaged Nusselt numbers for this problem from numerical simulations match well with experimental data from the literature. On the basis of two examples the difference between intermediate and high Reynolds number flow and heat transfer is pointed out. Finally, the influence of different initial droplet velocities on the time dependent temperature evolution is shown. The simulation has been performed on the Cray T3E/512-900 at the HLRS with up to 128 processors.

Keywords: Heat Transfer; Reynolds Number; Heat Transfer Coefficient; Nusselt Number; Direct Numerical Simulation (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-59354-3_24

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DOI: 10.1007/978-3-642-59354-3_24

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