Computation of Particle and Scalar Transport for Complex Geometry Turbulent Flows
Computation of Particle and Scalar Transport for Complex Geometry Turbulent Flows
复制标题
复杂几何湍流的粒子和标量输运计算
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
P. Tucker
中科院分区：
文献类型：
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作者：
P. Tucker
考虑了在复杂几何结构中，由风扇驱动的湍流中颗粒和标量输运的预测。使用不同的湍流模型，各向异性，流动不稳定性，风扇涡流和静电力对颗粒轨迹的影响。所探讨的湍流模型包括k-1、纬向k-e/k-1和非线性涡粘模型。粒子运输预测使用随机技术。本文提出了一种计算复杂几何条件下作用在粒子上的静电像力的简单算法。粒子传输和流体流动模型的验证情况下显示。与新的烟雾流动可视化数据和颗粒沉积数据进行了比较
The prediction of particle and scalar transport in a complex geometry with turbulent flow driven by fans is considered. The effects of using different turbulence models, anisotropy, flow unsteadiness, fan swirl, and electrostatic forces on particle trajectories are shown. The turbulence models explored include k - l, zonal k - e/k - l, and nonlinear eddy viscosity models. Particle transport is predicted using a stochastic technique. A simple algorithm to compute electrostatic image forces acting on particles, in complex geometries, is presented. Validation cases for the particle transport and fluid flow model are shown. Comparison is made with new smoke flow visualization data and particle deposition data