Void Fraction Based Two Phase Flow Model of Supersaturated Moist Air

Tomáš Hyhlík

doi:10.4028/www.scientific.net/AMM.821.39

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 821Void Fraction Based Two Phase Flow Model of...

Void Fraction Based Two Phase Flow Model of Supersaturated Moist Air

Abstract:

The article deals with the developed of the model of supersaturated moist air flow with condensation. The proposed model is suitable especially for the cases where the rate of change of state variables in the flow field is slow like the flow in natural draft wet-cooling towers and in general the low Mach number flow. Void fraction of gas phase is included in governing equations. Homogeneous equilibrium model, where the two phases are well mixed and have the same velocity, is used. The results of the numerical solutions of the convergent nozzle are presented. The numerical fluxes are based on AUSM + -up scheme and temporal discretization is based on four stage order three explicit strong stability preserving Runge-Kutta method with non-negative coefficients.

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Periodical:

Applied Mechanics and Materials (Volume 821)

Pages:

39-47

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.821.39

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Online since:

January 2016

Authors:

Tomáš Hyhlík*

Keywords:

Moist Air, Supersaturation, Two Phase Flow Modelling, Void Fraction, Wet-Cooling Tower

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References

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