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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/17762
Title: A three-dimensional numerical modelling of atmospheric pool boiling by the coupled map lattice method
Authors: Gupta A.
Ghoshdastidar F.S.
Published in: Proceedings of ASME Summer Heat Transfer Conference
Abstract: In the present paper, the characteristic atmospheric pool boiling curve is qualitatively reproduced for water on a temperature controlled thin copper strip having comparable length and breadth by the coupled map lattice (CML) method using a three-dimensional boiling field model. The basic objective of the work is to improve the prediction of the critical heat flux (CHF) with respect to the 2D CML model of Ghoshdastidar et al. [10]. The work models saturated pool boiling of water at 1 bar on a large (much larger than the minimum wavelength of 2D Taylor waves) and thin horizontal copper strip. The pool height is 0.7 mm, indicating thin film boiling. In the present model, it is assumed that boiling is governed by (a) nucleation from cavities on a heated surface, (b) thermal diffusion, (c) bubble rising motion and associated convection, (d) phase change and (e) Taylor instability. The changes with respect to 2D model are primarily with respect to 3D modelling of thermal diffusion and 2D distribution of nucleating cavity sizes. The predicted CHF is 1.57 MW/m2 as compared to the actual value of 1.3 MW/m2 and 0.36 MW/m2 predicted by the 2D CML model of Ghoshdastidar et al. [10]. It can be said that for the first time a coupled map lattice method which is essentially qualitative in nature has been able to predict the CHF of saturated pool boiling of water at 1 bar very close to the actual value. Copyright © 2005 by ASME.
Citation: Proceedings of ASME Summer Heat Transfer Conference, (2005), 143- 153. San Francisco, CA
URI: https://doi.org/10.1115/HT2005-72497
http://repository.iitr.ac.in/handle/123456789/17762
Issue Date: 2005
Keywords: 3D numerical modelling
CML
Coupled map lattice
Non-linear dynamics
Pool boiling
ISBN: 0791847314; 9780791847312
Author Scopus IDs: 55491955100
36108031600
Author Affiliations: Gupta, A., Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, U.P. 208016, India
Ghoshdastidar, F.S., Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, U.P. 208016, India
Corresponding Author: Gupta, A.; Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, U.P. 208016, India
Appears in Collections:Conference Publications [ME]

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