图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
流动显示和图像处理期刊
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1

ISSN 打印: 1065-3090
ISSN 在线: 1940-4336

流动显示和图像处理期刊

DOI: 10.1615/JFlowVisImageProc.v12.i1.70
pages 95-104

NUMERICAL ANALYSIS OF THERMAL-FLUID FLOW BETWEEN STATIONARY AND ROTATING PARALLEL DISKS

ABSTRACT

This paper investigates thermal-fluid transport phenomena in a laminar flow between a rotating bottom disk and a stationary upper disk, from whose center a circular jet is impinged on the heated horizontal bottom disk surface. Emphasis is placed on the effects of the Reynolds number, rotational velocity, and disk spacing on both the formations of velocity and thermal fields and the heat-transfer rate along the heated wall surface. The governing equations are discretized by means of a control volume technique and are numerically solved to determine the distributions of the velocity vector and fluid temperature under the appropriate boundary conditions. It is found from the study that (i) the recirculation zone which appears on the stationary disk moves along the outward direction with an increase in the Reynolds number, (ii) when the Reynolds number is increased, heat transfer performance is intensified over the whole disk surface and the minimum value of the heat-transfer rate moves in the downstream direction, and (iii) the heat-transfer rate is induced due to the disk rotation, whose effect becomes larger in the wider disk spacing.


Articles with similar content:

Dynamics of a Vortex in an Angular Region and within a Cross Groove
International Journal of Fluid Mechanics Research, Vol.28, 2001, issue 1&2
V. O. Gorban, I. M. Gorban
Impingement Cooling with Spent Flow in the Blade Leading Edge Using Double Swirl Chambers
International Heat Transfer Conference 15, Vol.23, 2014, issue
Masahide Kazari, Karsten Kusterer, Ryozo Tanaka, Dieter Bohn, Gang Lin, Takao Sugimoto
NUMERICAL FLOW VISUALIZATION AND THERMAL TRANSPORT CHARACTERISTICS IN CONFINED CHANNELS WITH TWO-DIMENSIONAL DUAL JET IMPINGEMENT
Journal of Flow Visualization and Image Processing, Vol.15, 2008, issue 2
Wen-Jei Yang, Shuichi Torii
VISUALIZATION OF THE EFFECT OF ACOUSTIC EXCITATION ON VORTEX STRUCTURE AND ENERGY SEPARATION IN JETS
International Heat Transfer Conference 11, Vol.14, 1998, issue
Richard J. Goldstein, Woo Seok Seol
NUMERICAL PREDICTION OF NATURAL CONVECTION FROM A HORIZONTAL DISK
International Heat Transfer Conference 8, Vol.2, 1986, issue
James A. Liburdy, B. J. Tsai