Laminar Forced Convection from a Rotating Horizontal Cylinder in Cross Flow

• Published in: Journal of thermal science Vol. 26; no. 2; pp. 153 - 159
• Main Authors: Chandran, Prabul, Venugopal, G., Jaleel, H. Abdul, Rajkumar, M. R.
• Format: Journal Article
• Language: English
• Published: Heidelberg Science Press 01.04.2017; Springer Nature B.V
• Subjects: Boundary conditions; Boundary layers; Classical and Continuum Physics; Computational fluid dynamics; Cross flow; Engineering Fluid Dynamics; Engineering Thermodynamics; Fluid flow; Forced convection; Heat and Mass Transfer; Heat flux; Heat transfer; Laminar flow; Physics; Physics and Astronomy; Prandtl number; Reynolds number; Rotating cylinders; Rotating fluids; Rotation; Workbench; 层流; 强制对流; 旋转速度; 普朗特数; 横流; 水平圆柱; 计算流体动力学; Prandtl number; Flow Reynolds number; Non-dimensional rotational velocity; Heated rotating cylinder
• ISSN: 1003-2169; 1993-033X
• DOI: 10.1007/s11630-017-0924-9

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.