摘要
计算流体动力学(CFD)是通过计算机数值计算和图像显示,对包含有流体流动和热传导等相关物理现象的系统所做的分析。将CFD数值模拟引入到工程流体力学的多媒体教学中,重点针对教学中局部阻力损失难于理解、流动复杂、阻力损失不易理论计算的特点,对不同种类的局部管路损失进行了模拟分析,得到流体在局部管路中的速度大小和方向的变化、漩涡分布、阻力损失等,便于学生更加直观地理解局部阻力损失的规律。
The computational fluid dynamics(CFD)is an analysis of the system that contains the physical phenomena related to fluid flow and heat conduction through the computer numerical calculation and image display.The CFD numerical simulation is introduced into the multimedia teaching of engineering fluid dynamics.For the local resistance loss is difficult to understand and theory calculation is not easy,the paper simulates and analyzes local pipeline losses of different types.The magnitude and direction of velocity,the distribution of vortex and resistance loss are obtained,which is convenient for students to understand the law of local resistance loss more intuitively.
作者
杨小平
王文豪
马远琼
YANG Xiaoping;WANG Wenhao;MA Yuanqiong(School of Chemical Engineering and Energy Technology,Dongguan University of Technology,Dongguan 523808,China)
出处
《东莞理工学院学报》
2018年第1期112-115,共4页
Journal of Dongguan University of Technology
基金
广东省高等教育教学改革与研究(2016)
广东省自然科学基金项目(2015A030313655)
关键词
流体力学
局部阻力
漩涡
CFD模拟
fluid dynamics
local resistance
vortex
CFD simulation
