Abstract
A two-dimensional steady developing fluid flow and heat transfer through a periodic wavy channel with staggered walls is studied numerically for a fluid with a Prandlt number of 0.7 and compared to flow through the corresponding wavy channel with nonstaggered walls. The lower wall is displaced relative to the upper wall by one-fourth, one-half, and three-fourths of the total one-module length. Sinusoidal and arc-shaped configurations are studied for a fixed set of geometric parameters. Periodically fully developed flow is attained downstream of the first module of the 10 modules considered in this study. Sinusoidal channels with one-half displacement provide lower normalized pressure drop values when compared to all other channels (staggered and nonstaggered) considered in this study. The module average Nusselt number increases monotonically with Reynolds number. Moreover, the heat transfer enhancement ratio for arc-shaped channels with three-fourths displacement is as high as 5.7%.
| Original language | English |
|---|---|
| Pages (from-to) | 877-898 |
| Number of pages | 22 |
| Journal | Numerical Heat Transfer; Part A: Applications |
| Volume | 51 |
| Issue number | 9 |
| DOIs | |
| State | Published - Jan 2007 |
Bibliographical note
Funding Information:Received 4 January 2006; accepted 21 July 2006. This work was supported in full or in part by a grant from the King Fahd University of Petroleum & Minerals, Junior Faculty Research Grant. This support does not necessarily imply endorsement by the University of the research conclusion. Address correspondence to Haitham M. S. Bahaidarah, Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia. E-mail: [email protected]
ASJC Scopus subject areas
- Numerical Analysis
- Condensed Matter Physics