In developing numerical code for interfacial evaporation problems, 1st Stefan problem is generally used for validation. In this paper, both 1st and 2nd Stefan problems are used for validating a numerical code that utilizes volume of fluid method and is based on ANSYS-Fluent along with user defined functions (UDFs) to account for the mass and energy transfer at the interface. The 2nd Stefan problem incorporates heat transfer in both phases and provides a more realistic representation of an evaporating interface. Emphasis is put on the vapor-liquid heat transfer, which takes into account the sensible heat transfer in the liquid phase where liquid conduction effects are important. The mass transfer model takes into account the temperature gradients in both phases at the interface. Analytical solutions for the two Stefan problems are reported and used for validation purposes. Results show that the interface displacement and temperature distributions are simulated accurately. The current approach utilizes the robust platform of ANSYS-Fluent while allowing an accurate representation of the phase change processes at the interface.
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ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 Fluids Engineering Division Summer Meeting
July 10–14, 2016
Washington, DC, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5034-3
PROCEEDINGS PAPER
Modeling of Evaporation Phenomenon Considering Liquid and Vapor Phase Conduction Effects: Stefan Problems Available to Purchase
Isaac Perez-Raya,
Isaac Perez-Raya
Rochester Institute of Technology, Rochester, NY
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Satish G. Kandlikar
Satish G. Kandlikar
Rochester Institute of Technology, Rochester, NY
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Isaac Perez-Raya
Rochester Institute of Technology, Rochester, NY
Satish G. Kandlikar
Rochester Institute of Technology, Rochester, NY
Paper No:
ICNMM2016-7968, V001T11A004; 8 pages
Published Online:
November 9, 2016
Citation
Perez-Raya, I, & Kandlikar, SG. "Modeling of Evaporation Phenomenon Considering Liquid and Vapor Phase Conduction Effects: Stefan Problems." Proceedings of the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 Fluids Engineering Division Summer Meeting. ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. Washington, DC, USA. July 10–14, 2016. V001T11A004. ASME. https://doi.org/10.1115/ICNMM2016-7968
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