Numerical investigation of bi-component droplets vaporization in a turbulent flow
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Date
Authors
Abou Al-Sood, M.M.
Ahmed, M.
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Publisher
International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics
Abstract
Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.
The purpose of this paper is to develop a three-dimensional (3D) numerical model capable of investigating the vaporization rate of bi-component liquid fuel droplets exposed to a convective turbulent gaseous air freestream at ambient room temperature and atmospheric pressure conditions. Droplets of n-heptane and n-decane mixtures with different compositions are used. The mathematical model is based on 3D Reynolds- Averaged Navier-Stokes equations, together with the mass, species, and energy conservation equations in gas phase whileas Navier-Stokes equations, mass, species, and energy conservation in the liquid phase. The turbulence terms in the conservation equations of the gas-phase are modelled by using the shear-stress transport (SST) model. A Cartesian grid based blocked-off technique is used in conjunction with the finite- volume method to solve numerically the governing equations of the gas and liquid-phases. The present predictions showed good agreement with turbulent experimental data available in the literature. The present study is limited to ambient room temperature and atmospheric pressure conditions.
The purpose of this paper is to develop a three-dimensional (3D) numerical model capable of investigating the vaporization rate of bi-component liquid fuel droplets exposed to a convective turbulent gaseous air freestream at ambient room temperature and atmospheric pressure conditions. Droplets of n-heptane and n-decane mixtures with different compositions are used. The mathematical model is based on 3D Reynolds- Averaged Navier-Stokes equations, together with the mass, species, and energy conservation equations in gas phase whileas Navier-Stokes equations, mass, species, and energy conservation in the liquid phase. The turbulence terms in the conservation equations of the gas-phase are modelled by using the shear-stress transport (SST) model. A Cartesian grid based blocked-off technique is used in conjunction with the finite- volume method to solve numerically the governing equations of the gas and liquid-phases. The present predictions showed good agreement with turbulent experimental data available in the literature. The present study is limited to ambient room temperature and atmospheric pressure conditions.
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Keywords
Vaporization rate of bi-component liquid fuel droplets, Three-dimensional numerical model, Convective turbulent gaseous air freestream, 3D Reynolds- Averaged, Navier-Stokes equations, Shear-stress transport, SST
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Citation
Abou Al-Sood, MM & Ahmed, M 2012, Numerical investigation of bi-component droplets vaporization in a turbulent flow, Paper presented to the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.