流态模型对小型太阳能烟囱流场特性影响分析  

ANALYSIS OF INFLUENCE OF FLOW MODEL ON FLOW FIELD CHARACTERISTICS OF SMALL SOLAR CHIMNEY

作　　者：聂晶[1,2] 苏昊 贾靖 高虹 闫素英[1,2] 许金晨 Nie Jing;Su Hao;Jia Jing;Gao Hong;Yan Suying;Xu Jinchen(School of Energy and Power Engineering,Inner Mongolia University of Technology,Hohhot 010051,China;Inner Mongolia Key Laboratory of Renewable Energy,Hohhot 010051,China)

机构地区：[1]内蒙古工业大学能源与动力工程学院,呼和浩特010051 [2]内蒙古可再生能源重点试验室,呼和浩特010051

出　　处：《太阳能学报》2024年第1期80-86,共7页Acta Energiae Solaris Sinica

基　　金：内蒙古自然科学基金(2021LHMS05007);内蒙古自治区直属高校基本科研业务费项目(JY20220397);内蒙古工业大学博士基金项目(BS201933);内蒙古自治区重大专项(2019ZD0014)。

摘　　要：在小型太阳能烟囱(SC)的数值模拟计算中,选取不同流态模型(层流、湍流或转捩)计算结果不同。该文使用光线追踪和环境侧风模拟,对不同流态模型进行数值模拟计算,对比分析计算结果与试验数据。结果表明:不同时刻转捩模型下流体湍流强度、受环境侧风扰动程度与层流模型、湍流模型相比更小,在计算中使用转捩模型更准确,为小型SC流场模拟计算的模型选择提供参考。In the numerical simulation calculation of small solar chimney(SC),different flow modes(laminar flow,turbulence or transition)are selected to obtain different calculation results.In this paper,ray tracing and environmental crosswind simulation are used to numerically simulate different flow models,and the calculated results and test data are compared and analyzed.The results show that the intensity of fluid turbulence and the degree of ambient crosswind disturbance under the transition model at different times are smaller than those of laminar flow model and turbulence model,so it is more accurate to use the transition model in calculation,which provides a reference for the model selection of small SC flow field simulation calculation.

关 键 词：太阳能烟囱 转捩流 热分析 数值分析 

分 类 号：TK513.5[动力工程及工程热物理—热能工程]