Abstract
Thi paper describes the experimental study of the radial supersonic flow behavior over the riblet surface mounted on the disk-shaped wall to reduce a pressure loss. The experiments have been performed in an indraft supersonic wind tunnel installed with disk-shaped channel at Mach numbers ranging from 1.8 to 3.3 just in front of a pressure rise. The static pressure rise in the pseudo-shock region observed in a channel with riblet surface became milder than that for the case of smooth surface, and significance of its difference was indicated by uncertainty analysis entimated at 95% coverage. The contours of stagnation pressure obtained by traversing a Pitot-tube showed that a higher stagnation pressure was maintained near the riblet surface compared with that for the smooth surface. Furthermore, it was found that the stagnation pressure loss reduced about 20% near the riblet surface at a Mach number of 2.5.
| Original language | English |
|---|---|
| Pages (from-to) | 3205-3212 |
| Number of pages | 8 |
| Journal | Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| Volume | 64 |
| Issue number | 626 |
| Publication status | Published - 1998 Oct |
| Externally published | Yes |
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Keywords
- Internal flow
- Pressure loss
- Radial flow
- Riblet
- Shock wave
- Stagnation pressure
- Supersonic flow
ASJC Scopus subject areas
- Mechanical Engineering
- Condensed Matter Physics
Cite this
Pressure loss reduction of a radial supersonic internal flow. / Tsunoda, Kazumi; Ono, Masayuki; Asai, Toshiaki.
In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 64, No. 626, 10.1998, p. 3205-3212.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Pressure loss reduction of a radial supersonic internal flow
AU - Tsunoda, Kazumi
AU - Ono, Masayuki
AU - Asai, Toshiaki
PY - 1998/10
Y1 - 1998/10
N2 - Thi paper describes the experimental study of the radial supersonic flow behavior over the riblet surface mounted on the disk-shaped wall to reduce a pressure loss. The experiments have been performed in an indraft supersonic wind tunnel installed with disk-shaped channel at Mach numbers ranging from 1.8 to 3.3 just in front of a pressure rise. The static pressure rise in the pseudo-shock region observed in a channel with riblet surface became milder than that for the case of smooth surface, and significance of its difference was indicated by uncertainty analysis entimated at 95% coverage. The contours of stagnation pressure obtained by traversing a Pitot-tube showed that a higher stagnation pressure was maintained near the riblet surface compared with that for the smooth surface. Furthermore, it was found that the stagnation pressure loss reduced about 20% near the riblet surface at a Mach number of 2.5.
AB - Thi paper describes the experimental study of the radial supersonic flow behavior over the riblet surface mounted on the disk-shaped wall to reduce a pressure loss. The experiments have been performed in an indraft supersonic wind tunnel installed with disk-shaped channel at Mach numbers ranging from 1.8 to 3.3 just in front of a pressure rise. The static pressure rise in the pseudo-shock region observed in a channel with riblet surface became milder than that for the case of smooth surface, and significance of its difference was indicated by uncertainty analysis entimated at 95% coverage. The contours of stagnation pressure obtained by traversing a Pitot-tube showed that a higher stagnation pressure was maintained near the riblet surface compared with that for the smooth surface. Furthermore, it was found that the stagnation pressure loss reduced about 20% near the riblet surface at a Mach number of 2.5.
KW - Internal flow
KW - Pressure loss
KW - Radial flow
KW - Riblet
KW - Shock wave
KW - Stagnation pressure
KW - Supersonic flow
UR - http://www.scopus.com/inward/record.url?scp=71249134638&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=71249134638&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:71249134638
VL - 64
SP - 3205
EP - 3212
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 - 626
ER -