| 收缩喷嘴中气粉流行为的理论计算 |
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| 引用本文： | 彭一川,肖泽强.收缩喷嘴中气粉流行为的理论计算[J].东北大学学报(自然科学版),1986(3). |
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| 作者姓名： | 彭一川 肖泽强 |
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| 作者单位： | 东北工学院冶金传输原理教研室
(彭一川)，东北工学院冶金传输原理教研室(肖泽强) |
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| 摘 要： | 本文建立了圆锥形喷嘴中气粉流的数学模型,这一模型由七个未知量U_q,T_q,、p、U_p、T_p、A和ρ_q的一阶常微分方程组以及相应的入口边界条件所构成。数值计算表明,粉粒速度的变化与粉气比无关;粉粒终速随粉粒密度的减小而增大,随粉粒粒径的减小而增大。
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| 关 键 词： | 气粉流 收缩喷嘴 粉粒速度 |
Theoretical Calculation on the Behavior of Gas-Powder Flow Passing through Convergent Nozzle |
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| Peng Yichuan Hsiao Tsechiang.Theoretical Calculation on the Behavior of Gas-Powder Flow Passing through Convergent Nozzle[J].Journal of Northeastern University(Natural Science),1986(3). |
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| Authors: | Peng Yichuan Hsiao Tsechiang |
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| Institution: | Peng Yichuan Hsiao Tsechiang |
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| Abstract: | A mathematical model describing the behavior of gas-powder flow passing through convergent nozzle of conic section is developed,based on the conservation laws of mass, energy and momentum. The model is constituted by a system of first-order ordinary differential equations including seven parameters, with corresponding boundary conditions of the inlet in nozzle. The numerical calculation result shows that the variation of particle's velocities are independent of the ratio of mass flow rate of particles to total mass flow rate, and the particle's final velocities are increasing with the reduction of particle's density or size. |
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| Keywords: | gas-powder flow convergent nozzle particle's velocities |
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