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ISSN Online: 2377-424X

ISBN Print: 1-56032-797-9

International Heat Transfer Conference 11
August, 23-28, 1998, Kyongju, Korea

STUDY ON THE EFFECT OF VOLUMETRIC CHANGE, ICE STRUCTURE AND HEATING CONDITION ON ICE MELTING SIMULATION

Get access (open in a dialog) DOI: 10.1615/IHTC11.990
pages 145-150

Resumo

It is important to know the behavior of hydrogen bonding in order to understand the mechanism of melting of ice in micro scale. The object of this study is to investigate the various conditions affecting the simulation on ice melting such as boundary condition, method of volumetric change, crystal structure and heating condition. TlP4P(Four-sited Transferable Intermolecular Potential, W.L. Jorgensen, J. Chandrasekhr, J.D. Madura, R.W. lmpey, and M.L. Klein, 1983) model was selected as water model. First of all, volumetric change condition was considered and melting point of anisotropic condition was found to be closer to macroscopic value than isotropic one which produce an unbalanced stress on ice. Secondly, the effect on the difference of ice structure was considered using two extreme arrangements, i.e., ferromagnetic and anti-ferromagnetic structure. According to the stability of potential distribution, melting point and latent heat of the latter was closer to the nature than the former, Thirdly, the effect of the heating condition was observed and found that the melting point was closer to macroscopic value in a case of heating from a wall comparing to that of heating all molecules or point heating.