TRANSIENT FORCED-CONVECTION IN THE ENTRANCE REGION OF CONCENTRIC ANNULI

被引：19
|
作者：
ELSHAARAWI, MAI [1 ]
ALKAM, MK [1 ]
机构：
[1] JORDAN UNIV SCI & TECHNOL, DEPT MECH ENGN, IRBID, JORDAN
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1992年 / 35卷 / 12期
关键词：
D O I：
10.1016/0017-9310(92)90220-M
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The paper presents a finite-difference scheme to solve the transient laminar forced convection problem in the entry region of a concentric annulus with sumultaneously developing hydrodynamic and thermal boundary layers. Four initial conditions are considered tor the creation of thermal transients. These correspond to either a step change in temperature at one of the annulus boundaries or to a simultaneous step change in temperature at both the inlet cross-section and one of the annulus boundaries, the other annulus boundary is kept adiabatic in all cases. Numerical results are presented for a fluid of Pr = 0.7 in an annulus of radius ratio 0.5.
引用
收藏
页码：3335 / 3344
页数：10
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