Laminar Forced Convection from a Rotating Horizontal Cylinder in Cross Flow  

作　　者：Prabul Chandran G.Venugopal H.Abdul Jaleel M.R.Rajkumar 

机构地区：[1]Dept of Mechanical Engineering,College of Engineering Trivandrum,Kerala,India [2]Dept of Mechanical Engineering,Government Engineering College Thrissur,Kerala,India

出　　处：《Journal of Thermal Science》2017年第2期153-159,共7页热科学学报（英文版）

摘　　要：The influence of non-dimensional rotational velocity, flow Reynolds number and Prandtl number of the fluid on laminar forced convection from a rotating horizontal cylinder subject to constant heat flux boundary condition is numerically investigated. The numerical simulations have been conducted using commercial Computational Fluid Dynamics package CFX available in ANSYS Workbench 14. Results are presented for the non-dimensional rotational velocity α ranging from 0 to 4, flow Reynolds number from 25 to 40 and Prandtl number of the fluid from 0.7 to 5.4. The rotational effects results in reduction in heat transfer compared to heat transfer from stationary heated cylinder due to thickening of boundary layer as consequence of the rotation of the cylinder. Heat transfer rate increases with increase in Prandtl number of the fluid.

关 键 词：Heated rotating cylinder Non-dimensional rotational velocity Flow Reynolds number Prandtl number 

分 类 号：O35[理学—流体力学]