Abstract
This paper describes the experimental study of the supersonic internal flow over the riblet surface mounted on the channel wall to reduce a pressure loss and improve the performance of a supersonic nozzle. The magnitude of the static pressure in the pressure-rise region observed in channels with riblet surface became lower than that for the case of smooth surface, and significance of its difference was indicated by uncertainty analysis estimated at 95% coverage. The Mach number distributions obtained by traversing a Pitot-tube showed that the separation point moved downstream and the size of a separation region became small by using riblets. Furthermore, it was found that the stagnation pressure loss reduction achieved up to 56% in the uniform supersonic flow field at a Mach number of 2.0, and 29% in the separation region.
| Original language | English |
|---|---|
| Pages (from-to) | 2658-2665 |
| Number of pages | 8 |
| Journal | Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| Volume | 65 |
| Issue number | 636 |
| Publication status | Published - 1999 |
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Keywords
- Internal flow
- Pressure loss reduction
- Riblet
- Separation
- Stagnation pressure
- Supersonic flow
ASJC Scopus subject areas
- Mechanical Engineering
- Condensed Matter Physics
Cite this
Effect of riblets on the performance of a supersonic nozzle. / Tsunoda, Kazumi; Suzuki, Tomohiko; Asai, Toshiaki.
In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 65, No. 636, 1999, p. 2658-2665.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of riblets on the performance of a supersonic nozzle
AU - Tsunoda, Kazumi
AU - Suzuki, Tomohiko
AU - Asai, Toshiaki
PY - 1999
Y1 - 1999
N2 - This paper describes the experimental study of the supersonic internal flow over the riblet surface mounted on the channel wall to reduce a pressure loss and improve the performance of a supersonic nozzle. The magnitude of the static pressure in the pressure-rise region observed in channels with riblet surface became lower than that for the case of smooth surface, and significance of its difference was indicated by uncertainty analysis estimated at 95% coverage. The Mach number distributions obtained by traversing a Pitot-tube showed that the separation point moved downstream and the size of a separation region became small by using riblets. Furthermore, it was found that the stagnation pressure loss reduction achieved up to 56% in the uniform supersonic flow field at a Mach number of 2.0, and 29% in the separation region.
AB - This paper describes the experimental study of the supersonic internal flow over the riblet surface mounted on the channel wall to reduce a pressure loss and improve the performance of a supersonic nozzle. The magnitude of the static pressure in the pressure-rise region observed in channels with riblet surface became lower than that for the case of smooth surface, and significance of its difference was indicated by uncertainty analysis estimated at 95% coverage. The Mach number distributions obtained by traversing a Pitot-tube showed that the separation point moved downstream and the size of a separation region became small by using riblets. Furthermore, it was found that the stagnation pressure loss reduction achieved up to 56% in the uniform supersonic flow field at a Mach number of 2.0, and 29% in the separation region.
KW - Internal flow
KW - Pressure loss reduction
KW - Riblet
KW - Separation
KW - Stagnation pressure
KW - Supersonic flow
UR - http://www.scopus.com/inward/record.url?scp=71249148194&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=71249148194&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:71249148194
VL - 65
SP - 2658
EP - 2665
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 636
ER -