Shape Factors and Entrainment Coefficients in Inclined Thermal Model

Abstract

The model of inclined thermal includes the various shape factors and the constitutive relationships. The shape factors, i.e. the ratio of the thermal area to the square of the maximum height, the ratio of the thermal perimeter to the maximum height and the ratio of the thermal length to the maximum height are considered to be functions of the slope angle. These factors are estimated by the experimental results of the area, the perimeter and the length of a thermal. The entrainment coefficients are also estimated by the various methods. The entrainment coefficients are seemed to be a function of the slope angle and also a function of the Richardson number. Finally the numerical analysis using the conservative thermal model are carried out. The numerical results can explain the experimental results well

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