| 气固两相流动的数值计算 |
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| 引用本文： | 徐进,葛满初.气固两相流动的数值计算[J].工程热物理学报,1998(2). |
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| 作者姓名： | 徐进 葛满初 |
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| 作者单位： | 中国科学院工程热物理研究所!北京，100080，中国科学院工程热物理研究所!北京，100080 |
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| 基金项目： | 国家自然科学基金，攀登B资助 |
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| 摘 要： | 1前言两相流系统的研究主要有三种方法：宏观的连续介质理论（欧拉法）1]、微观的运动理论、粒子运动的拉格朗日方法．和单相流动的主要差别在于，两相流动模拟要考虑两相间的相互作用，即耦合作用．如果载荷比较低，粒子的存在并不影响气流的速度场，但气流决定着粒子的轨道和参数的变化，这种情况叫单向耦合（one－waycoupling）．在早期的数值分析模型中，单相耦合假定常被人们采用。但当载荷比较高时，不但要考虑气相对粒子的影响，还要考虑粒子的存在对气流的影响，即双向耦合作用（two－waycoupling）2]．这种两相间复杂的相互作用…
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| 关 键 词： | 单向耦合 双向耦合 双流体模型 PSIC算法 |
NUMERICAL COMPUTATIONS ON THE GAS-SOLID TWO-PHASE FLOW INSIDE TWO-DIMENSIONAL TUNNELS |
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| XU Jin, GE Manchu.NUMERICAL COMPUTATIONS ON THE GAS-SOLID TWO-PHASE FLOW INSIDE TWO-DIMENSIONAL TUNNELS[J].Journal of Engineering Thermophysics,1998(2). |
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| Authors: | XU Jin GE Manchu |
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| Abstract: | In this paper both Eulerian and Lagrangian approaches are used on the numericalcomputations of dilute gas-solid two-phase flows. In Eulerian approach the gas flow field in atwo-dimensional tunnel is computed by a general-used software. From this result the particletrajectory is computed by the model of one-way coupling using the knocking relation obtainedfrom the experiments. The computed result shows good agreement with that produced fromexperimental measurement. In addition, in order to consider the coupling effect between thetwo-phase, a two-way coupling model is also used to compute the particle trajectory, andproduced some useful conclusion. The presented computing program can be used to predictthe trajectory of solid particle in dilute two-phase flow. |
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| Keywords: | one-way coupling two-way coupling two fluid model PSIC algorithm |
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