ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1

ISSN 印刷: 1065-3090
ISSN オンライン: 1940-4336

Journal of Flow Visualization and Image Processing

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

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

要約

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:

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
Thermal-Fluid Transport Phenomena over Slot-Perforated Flat Fins with Heat Sink in Forced Convection Environment
Journal of Enhanced Heat Transfer, Vol.14, 2007, issue 2
Wen-Jei Yang
Hydromagnetic Flow Due to Eccentrically Rotating Porous Disk and a Fluid at Infinity
International Journal of Fluid Mechanics Research, Vol.34, 2007, issue 6
B. K. Das, Mrinmoy Guria
TEMPERATURE-GRADIENT CONTROL OF FLOW SEPARATION PHENOMENON ON A CURVED SURFACE
Journal of Flow Visualization and Image Processing, Vol.11, 2004, issue 1
Wen-Jei Yang
THERMAL FLUID TRANSPORT PHENOMENA OVER SLOT-PERFORATED FLAT SURFACE IN CHANNELS
Journal of Flow Visualization and Image Processing, Vol.9, 2002, issue 4
Wen-Jei Yang