| 基于Fluent的气固喷射器三维数值模拟研究 |
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| 引用本文： | 石莹,林显臣. 基于Fluent的气固喷射器三维数值模拟研究[J]. 选煤技术, 2011, 0(4): 19-23,82 |
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| 作者姓名： | 石莹 林显臣 |
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| 作者单位： | 烟台工程职业技术学院,山东烟台,264006 |
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| 摘 要： | 根据CFD和仿真思想,采用标准k-ε湍流模型,并利用拉格朗日法和欧拉法相结合的三维数值模拟技术,对气固喷射器内的流场和颗粒行为进行了数值模拟研究。对固体颗粒采用了离散相模型,考察了气固两相间的相互耦合[1]作用,结果表明:在该喷射器的接收室中,喷嘴管道周围的一些无效区域内有颗粒的聚集和停留,流场的湍动能在喷嘴出口区域周围达到最大值。其主要原因在于,喷射器中心高速射流区域周围产生了明显的回流现象,固体颗粒的加入对气体流动情况产生了一定影响,气体流场随后逐步稳定。
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| 关 键 词： | 气固喷射器 计算流体力学 FLUENT 数值模拟 离散相模型 |
Three-Dimensional Numerical Simulation of Gas-solid Injector based on Fluent |
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| Shi Ying. Three-Dimensional Numerical Simulation of Gas-solid Injector based on Fluent[J]. Coal Preparation Technology, 2011, 0(4): 19-23,82 |
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| Authors: | Shi Ying |
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| Abstract: | According to CFD and the idea of simulation,using standard k-turbulent model,and three-dimensional numerical simulation technique together with the LaGrange and Eulerian methods,does numerical simulation study on the flow field and the action of particles in gas-solid injector.Use discrete phase model on solid particles,and consider the gas-solid two-way coupling effects.The result indicates that there are particles accumulating and remaining in some useless region around the pipe of nozzle in the receiving... |
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| Keywords: | solid-gas injector computational fluid dynamics fluent numerical simulation discrete phase model |
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