Numerical Study of Spray Impingement to Solid Wall

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Abbasi Chenari, Fatemeh | 2019

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 52185 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Morad, Mohammad Reza; Jahannama, Mohammad Reza
Abstract:
Spray-wall impingement is one of the phenomenon that associated in different subject such as spray cooling, combustion chamber and gas turbine. With the impingement of spray to the wall, liquid film begins to form. Wall film characteristics is still an important subject to study. Due to the various stages of liquid film formation from injection of spray till spray-wall impingement, the investigation of this phenomenon is far more complicated. This paper is meant to provide detailed data on spray-wall impingement and wall film formation physics with the help of computational analysis of OpenFOAM . A Lagrangian-Eulerian method based on discrete phase model (DPM) was employed to model spray-wall impingement and the wall film formation. The effect of various factors such as ambient pressure, surface temperature, impingement distance, impingement angle on the liquid film properties, including thickness and area, are discussed in this research
Keywords:
Spray Impingement ; Film Thickness ; Droplet Impact ; Liquid Film Thickness ; Combustion Chamber

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