To estimate the influence of velocity on the thermodynamic effect, we conducted experiments in which the inducer rotational speed was changed in liquid nitrogen. The experiments in liquid nitrogen and in cold water allowed us to estimate the amplitude of the thermodynamic effect. In the experiment with lower rotational speed, suction performance was improved. The cavity length at lower rotational speed was shorter than that at higher speed. Thus, we confirmed that the degree of the thermodynamic effect depends on the rotational speed as lower rotational speed suppresses cavity length. Temperature depression was estimated based on a comparison of cavity length in liquid nitrogen and that in water. We found that the degree of temperature depression became smaller when the rotational speed was lower.
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ASME 2009 Fluids Engineering Division Summer Meeting
August 2–6, 2009
Vail, Colorado, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4372-7
PROCEEDINGS PAPER
Influence of Rotational Speed on Thermodynamic Effect in a Cavitating Inducer Available to Purchase
Kengo Kikuta,
Kengo Kikuta
Japan Aerospace Exploration Agency, Kakuda, Miyagi, Japan
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Yoshiki Yoshida,
Yoshiki Yoshida
Japan Aerospace Exploration Agency, Kakuda, Miyagi, Japan
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Tomoyuki Hashimoto,
Tomoyuki Hashimoto
Japan Aerospace Exploration Agency, Kakuda, Miyagi, Japan
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Hideaki Nanri,
Hideaki Nanri
Japan Aerospace Exploration Agency, Kakuda, Miyagi, Japan
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Tsutomu Mizuno,
Tsutomu Mizuno
IHI Corporation, Mizuho, Tokyo, Japan
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Noriyuki Shimiya
Noriyuki Shimiya
IHI Corporation, Mizuho, Tokyo, Japan
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Kengo Kikuta
Japan Aerospace Exploration Agency, Kakuda, Miyagi, Japan
Yoshiki Yoshida
Japan Aerospace Exploration Agency, Kakuda, Miyagi, Japan
Tomoyuki Hashimoto
Japan Aerospace Exploration Agency, Kakuda, Miyagi, Japan
Hideaki Nanri
Japan Aerospace Exploration Agency, Kakuda, Miyagi, Japan
Tsutomu Mizuno
IHI Corporation, Mizuho, Tokyo, Japan
Noriyuki Shimiya
IHI Corporation, Mizuho, Tokyo, Japan
Paper No:
FEDSM2009-78083, pp. 77-83; 7 pages
Published Online:
July 26, 2010
Citation
Kikuta, K, Yoshida, Y, Hashimoto, T, Nanri, H, Mizuno, T, & Shimiya, N. "Influence of Rotational Speed on Thermodynamic Effect in a Cavitating Inducer." Proceedings of the ASME 2009 Fluids Engineering Division Summer Meeting. Volume 1: Symposia, Parts A, B and C. Vail, Colorado, USA. August 2–6, 2009. pp. 77-83. ASME. https://doi.org/10.1115/FEDSM2009-78083
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