Abstract
The complete similarity mathematical model based on the new similarity analysis method is developed for laminar forced condensation from vapour–gas mixture. The governing similarity mathematical models for the liquid and vapour film flows are coupled by the seven interfacial matching conditions respectively for the two-dimensional velocity component balances, shear force balance, mass flow rate balance, temperature balance, heat transfer balance, concentration condition, as well as the balance between the condensate liquid mass flow and vapour mass diffusion. The work of this chapter is the successful application of the present new similarity analysis method to the extensive investigation of the laminar forced film condensation of vapour–gas mixture, and the developed mathematical model is a complete dimensionless similarity model. In the complete similarity model both for liquid and vapour–gas mixture films, the concentration- and temperature-dependent physical properties, such as variable density, thermal conductivity, viscosity, and specific heat, are taken into account. These variable thermophysical properties exist in the transformed governing similarity mathematical model as the related dimensionless physical factors. The investigation of this chapter proves that the present new similarity analysis method developed in this book is a better alternative to the traditional Falkner-Skan type transformation for extensive investigation of laminar film condensation.
Published Version
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