Interaction of transfer processes during unsteady evaporation of water droplets |
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| Affiliation: | 1. Institute of Fluid Physics, CAEP, Mianyang 621900, China;2. Key Laboratory of Science and Technology on High Energy Laser, CAEP, Mianyang 621900, China;1. Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore;2. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China;1. Department of Mechanical Engineering, The Ohio State University, Columbus, OH, 43210, USA;2. Department of Aerospace Engineering, The Ohio State University, Columbus, OH, 43235, USA;3. Engineering and Process Science, Core R&D, The Dow Chemical Company, Lake Jackson, TX, 77566, USA;4. Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA;5. Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI, 48109, USA |
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| Abstract: | The change of water droplets state is modelled numerically under various heat and mass transfer conditions during their unsteady evaporation. The modelling is performed using the method of combined analytic–numeric research of heat and mass transfer in a two-phase “droplets–gas” flow. The algorithm of an iterative research is constructed for the analytically obtained system of integral equations. Regularities of heat transfer process interaction are examined. The dependence of the droplet state change on its heating manner is determined. Unsteadiness and interaction of transfer processes, as well as selectivity of radiant absorption in water droplets are evaluated. It is indicated that cognition of the droplet state change regularities in the case of conductive heating is very important in determination of two-phase flow and in construction of an engineering research method. |
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