Abstract
The present study investigated the influence of variable viscosity of temperature dependent fluids on the laminar heat transfer and friction factor in a 2:1 rectangular duct. The present numerical results of local Nusselt numbers for oil showed 70 - 80% enhancement over those of a constant property fluid and 40 -50% enhancement over water, and gave excellent agreement with recent experimental results. The heat transfer enhancement from the heated top wall was due to an increased velocity gradient near the wall. A new correlation for local Nusselt numbers in the 2:1 rectangular duct was proposed which covered both thermally developing and thermally fully developed regions. Consequently, a temperature-dependent viscous fluid together with a non-circular duct is proposed to be used in the design of a liquid cooling module for the computer industry and in compact heat exchangers in general.
| Original language | English |
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| Pages | 641-648 |
| Number of pages | 8 |
| Publication status | Published - 1993 |
| Externally published | Yes |
| Event | Proceedings of the ASME International Electronics Packaging Conference. Part 2 (of 2) - Binghamton, NY, USA Duration: 1993 Sept 29 → 1993 Oct 2 |
Other
| Other | Proceedings of the ASME International Electronics Packaging Conference. Part 2 (of 2) |
|---|---|
| City | Binghamton, NY, USA |
| Period | 93/9/29 → 93/10/2 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Mechanical Engineering