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CFD Simulation of Direct Contact Condensation With ANSYS CFX Using Locally Defined Heat Transfer Coefficients

[+] Author Affiliations
Sabin Cristian Ceuca, Rafael Macián-Juan

TU München, Garching, Germany

Paper No. ICONE20-POWER2012-54347, pp. 429-437; 9 pages
doi:10.1115/ICONE20-POWER2012-54347
From:
  • 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference
  • Volume 4: Codes, Standards, Licensing, and Regulatory Issues; Fuel Cycle, Radioactive Waste Management and Decommissioning; Computational Fluid Dynamics (CFD) and Coupled Codes; Instrumentation and Controls; Fuels and Combustion, Materials Handling, Emissions; Advanced Energy Systems and Renewables (Wind, Solar, Geothermal); Performance Testing and Performance Test Codes
  • Anaheim, California, USA, July 30–August 3, 2012
  • Conference Sponsors: Nuclear Engineering Division, Power Division
  • ISBN: 978-0-7918-4498-4
  • Copyright © 2012 by ASME

abstract

The assessment of the performance of two Heat Transfer Coefficient (HTC) models, derived from the Surface Renewal Theory (SRT) has been carried out based on a two-step approach. First using measurement data of a quasi-steady state horizontal stratified flow, the LAOKOON experiment performed at the TU Munich, and second by simulating a more complex transient experiment carried out at the PMK-2 facility of the KFKI Atomic Energy Research Institute Budapest. Both experiments have been simulated with ANSYS CFX 12.1 together with the added HTC models. The Volume of Fluid (VOF) approach, an Interface Tracking Method, was chosen for the simulation of the two phase flow dynamics due to its advantage of explicitly solving the interface geometry; in comparison to a standard two fluid Eulerian model. The coupled system of VOF and SRT based HTC calculation demonstrated its potential to simulate transient two phase flows with heat and mass transfer.

Copyright © 2012 by ASME

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