摘要
当射流出口速度较小或室内自然对流强度较大时,室内自然对流对射流特性产生重要影响。采用数值模拟方法,研究了建筑内左右壁面为定壁温边界条件下的自然对流与射流共存时的速度场和温度场。根据数值计算结果,分析了自然对流对射流特性的影响及其影响因素。这为工程设计中预测自然对流对室内气流射流的作用及合理设计室内气流组织提供了依据。
When outlet velocity of jet is small or intensity of natural convection is large,natural convection has great influence on jet.The numerical simulation method was used to study velocity and temperature fields when natural convection and jet coexisted considering the left and right walls as the first class boundary conditions in buildings with a opening.According to the simulation results,the effect of natural convection on jet and its influencing factors were presented.The conclusion provides the foundation for predicting the effect of natural convection on air jet and air-flow organization design in engineering design.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2012年第4期46-51,7,共6页
Journal of Henan University of Science And Technology:Natural Science
基金
国家自然科学基金项目(50906021)
关键词
自然对流
射流
速度场
温度场
数值模拟
Natural convection
Jet
Velocity field
Temperature field
Numerical simulation
