This study investigates the turbulent heat transfer and friction in a trapezoidal
channel with opposite walls roughened with transverse and v-shaped ribs. The
roughened channel depicts the internal cooling passage of an aerofoil near the trailing
edge. The various configurations investigated for this study are smooth channel, channel
with 90° transverse ribs and channel with v-shaped ribs angled at 45°. The pitch-toheight
ratio (P/e), rib height-to-hydraulic diameter ratio (e/Dh) and the aspect ratio (W/e)
were maintained at 12, 0.1906 and 1, respectively. The configuration was tested for
Reynolds number ranging from 7,000 to 40,000. The 45° rib was found to produce the
maximum heat transfer and minimum pressure loss.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/3175 |
| Date | 12 April 2006 |
| Creators | Subramanian, Karthik |
| Contributors | Lau, Sai C. |
| Publisher | Texas A&M University |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | Book, Thesis, Electronic Thesis, text |
| Format | 4103987 bytes, electronic, application/pdf, born digital |
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