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Numerical Simulation of bubble plume

Author: MaXia
Tutor: LiJianZhong；WeiWenLi；TianJiaNing
School: Xi'an University of Technology
Course: Hydraulics and River Dynamics
Keywords: Bubble plume Turbulence model K-ε model The bubbles concentration of the Boussinesq approximation Relative velocity Two-phase flow
CLC: O359.1
Type: Master's thesis
Year: 2000
Downloads: 299
Quote: 4
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Abstract


Bubble plume is a complex two-phase flow , more at home and abroad on the bubble plume , but the majority of experiments mainly less numerical simulation . A numerical simulation of the the circular bubble plume static environment . The specific tasks include: 1 . Through analysis of the development status of the bubble plume , the proposed fine simulation of flow field turbulence model is the future development trend . Turbulence model simulations provide insights into the law of motion of the bubbles , and provide the scientific basis for its theoretical development . 2. Recalling the history, current situation and trend of the kinds of mathematical model development and evaluation equipment , comparing the advantages and disadvantages of the various types of turbulence model and the scope of application . Combined with the actual situation , the choice of the k-ε . Model as a model of this article . 3. Diffusion theory and the theory of two-phase flow dynamics export bubble diffusion equation and the applicable conditions , so as to establish the diffusion equation to describe the characteristics of bubble motion . 4. Easily simulate the bubble plume , the Boussinesq approximation and boundary layer flow assumptions to improve the standard K- ε . Two-equation model . Mathematical model for the description of the law of motion of bubble plume . Integral discrete technology discretize the governing equations , discrete equations derived by computing space , and given the treatment of the boundary conditions . Combined with the characteristics of this type of flow equations with tridiagonal matrix method (TDMA), the preparation of the corresponding computer program . To predict bubble plume in a static environment , and experimental data to validate the predicted results are in good agreement with experimental data .

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CLC: > Mathematical sciences and chemical > Mechanics > Fluid Mechanics > Multiphase flow > Liquid, gas (vapor) two-phase flow
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