Number：

01095001

Download

PDF

Name：

曾憲中

Titles：

Professor

Author：

W.P Ma , T.M. Jeng , S.C. Tzeng , C.W. Lin , W.Y. Jywe , C.H. Liu

Paper name：

Study of Flow and Heat Transfer
Characteristics in Asymmetrically
Heated Sintered Porous Heat
Sinks With Periodical Baffles

Name of activity：

American Society Of Mechanical Engineers

Keywords：Flow visualization, Tayior-Couette fiow, Tayior voryices, numerical model.

Abstract：

This work uses the incense as the trace of flow to perform flow visualization of Taylor-Couette flow. The test section was made of a rotational inner cylinder and a stationary outer cylinder. Two modes of inner cylinder were employed. One had a smooth wall, and the other had an annular ribbed wall. Clear and complete Taylor vortices were investigated in both smooth and ribbed wall of co-axial rotating cylinder. Besides, a steady-state, axis-symmetrical numerical model was provided to simulate the present flow field. The Taylor vortices could be also successfully predicted. However, the assumption of steady-state flow might reduce some flow perturbations, resulting in an over-predicted critical Taylor number. A transient simulation is suggested to be performed in the future.

Back