Detailed heat/mass transfer measurements on stationary blade with various relative positions

Dong Ho Rhee; Hyung Hee Cho

Detailed heat/mass transfer measurements on stationary blade with various relative positions

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The present study investigated the effect of relative position of the blade on turbine blade and shroud heat transfer. The experiments were conducted in a low speed wind tunnel with stationary annular turbine cascade and the test section has a single turbine stage. The chord length of the blade is 150 mm and the mean tip clearance of the blade is about 2.5% of the blade chord. The Reynolds number based on blade inlet velocity and chord length is 1.5×10 ⁵ and mean turbulence intensity is about 3%. To investigate the effect of relative position of blade, the detailed heat/mass transfer measurements were performed for the stationary blade at four different positions in a single pitch. A naphthalene sublimation technique was used to obtain detailed heat/mass transfer coefficients on the blade and shroud. The results show that the blade relative position changes the distributions of velocity magnitude and turbulence intensity and consequently affects heat transfer characteristics. Especially, the heat transfer pattern near the tip on the suction side surface varies significantly because the behavior of tip leakage flow changes.

Original language	English
Title of host publication	Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11
Pages	151-160
Number of pages	10
Publication status	Published - 2006 Dec 1
Event	11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11 - Honolulu, HI, United States Duration: 2006 Feb 26 → 2006 Mar 2

Publication series

Name	Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11
Volume	1

Other

Other	11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11
Country	United States
City	Honolulu, HI
Period	06/2/26 → 06/3/2

All Science Journal Classification (ASJC) codes

Mechanical Engineering

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Rhee, D. H., & Cho, H. H. (2006). Detailed heat/mass transfer measurements on stationary blade with various relative positions. In Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11 (pp. 151-160). (Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11; Vol. 1).

Rhee, Dong Ho ; Cho, Hyung Hee. / Detailed heat/mass transfer measurements on stationary blade with various relative positions. Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11. 2006. pp. 151-160 (Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11).

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title = "Detailed heat/mass transfer measurements on stationary blade with various relative positions",

abstract = "The present study investigated the effect of relative position of the blade on turbine blade and shroud heat transfer. The experiments were conducted in a low speed wind tunnel with stationary annular turbine cascade and the test section has a single turbine stage. The chord length of the blade is 150 mm and the mean tip clearance of the blade is about 2.5% of the blade chord. The Reynolds number based on blade inlet velocity and chord length is 1.5×10 5 and mean turbulence intensity is about 3%. To investigate the effect of relative position of blade, the detailed heat/mass transfer measurements were performed for the stationary blade at four different positions in a single pitch. A naphthalene sublimation technique was used to obtain detailed heat/mass transfer coefficients on the blade and shroud. The results show that the blade relative position changes the distributions of velocity magnitude and turbulence intensity and consequently affects heat transfer characteristics. Especially, the heat transfer pattern near the tip on the suction side surface varies significantly because the behavior of tip leakage flow changes.",

author = "Rhee, {Dong Ho} and Cho, {Hyung Hee}",

year = "2006",

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language = "English",

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booktitle = "Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11",

note = "11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11 ; Conference date: 26-02-2006 Through 02-03-2006",

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Rhee, DH & Cho, HH 2006, Detailed heat/mass transfer measurements on stationary blade with various relative positions. in Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11. Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11, vol. 1, pp. 151-160, 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11, Honolulu, HI, United States, 06/2/26.

Detailed heat/mass transfer measurements on stationary blade with various relative positions. / Rhee, Dong Ho; Cho, Hyung Hee.

Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11. 2006. p. 151-160 (Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N2 - The present study investigated the effect of relative position of the blade on turbine blade and shroud heat transfer. The experiments were conducted in a low speed wind tunnel with stationary annular turbine cascade and the test section has a single turbine stage. The chord length of the blade is 150 mm and the mean tip clearance of the blade is about 2.5% of the blade chord. The Reynolds number based on blade inlet velocity and chord length is 1.5×10 5 and mean turbulence intensity is about 3%. To investigate the effect of relative position of blade, the detailed heat/mass transfer measurements were performed for the stationary blade at four different positions in a single pitch. A naphthalene sublimation technique was used to obtain detailed heat/mass transfer coefficients on the blade and shroud. The results show that the blade relative position changes the distributions of velocity magnitude and turbulence intensity and consequently affects heat transfer characteristics. Especially, the heat transfer pattern near the tip on the suction side surface varies significantly because the behavior of tip leakage flow changes.

AB - The present study investigated the effect of relative position of the blade on turbine blade and shroud heat transfer. The experiments were conducted in a low speed wind tunnel with stationary annular turbine cascade and the test section has a single turbine stage. The chord length of the blade is 150 mm and the mean tip clearance of the blade is about 2.5% of the blade chord. The Reynolds number based on blade inlet velocity and chord length is 1.5×10 5 and mean turbulence intensity is about 3%. To investigate the effect of relative position of blade, the detailed heat/mass transfer measurements were performed for the stationary blade at four different positions in a single pitch. A naphthalene sublimation technique was used to obtain detailed heat/mass transfer coefficients on the blade and shroud. The results show that the blade relative position changes the distributions of velocity magnitude and turbulence intensity and consequently affects heat transfer characteristics. Especially, the heat transfer pattern near the tip on the suction side surface varies significantly because the behavior of tip leakage flow changes.

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Rhee DH, Cho HH. Detailed heat/mass transfer measurements on stationary blade with various relative positions. In Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11. 2006. p. 151-160. (Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11).