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Numerical calculations for two-phase jet flow of a mixture of pulverized-coal and gas

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Abstract

In this paper, Euler-Lagrange type equations are used to describe the jet flow of a mixture of pulverized-coal and gas, which is an unsteady axisymmetric two-phase flow. By means of the finite-difference method, the coal particle's distribution, velocity and trajectory in the flow field are obtained. The coal particles are represented by a finite number of computational particles. Each particle's diameter is randomly assigned according to a given distribution. The states of the computational particles are different from each other. Turbulence is accounted for in a stochastic model. Explicit time-splitting scheme is used to calculate the strongly coupling interphase term. The numerical results are reasonable. The comparison between the numerical results and the experiment data for the case of the oil droplet injection shows good agreement. This numerical technique can be extended to the calculation of other two-phase flows of dilute particles or a droplet system.

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Authors and Affiliations

  1. Department of Mechanics, Zhejiang University, Zhejiang, China

    Guo Bentie, Fan Zhengqiao, Zhang Benzhao & Ding Jianmin

Authors
  1. Guo Bentie
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  2. Fan Zhengqiao
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  3. Zhang Benzhao
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  4. Ding Jianmin
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Mr. Mei Renwei also participated in the work of this paper.

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Bentie, G., Zhengqiao, F., Benzhao, Z. et al. Numerical calculations for two-phase jet flow of a mixture of pulverized-coal and gas. Acta Mech Sinica 1, 37–48 (1985). https://doi.org/10.1007/BF02487859

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  • DOI: https://doi.org/10.1007/BF02487859

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