한국전산유체공학회:학술대회논문집
- 한국전산유체공학회 2008년도 춘계학술대회논문집
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- Pages.460-463
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- 2008
부족팽창 습공기 제트의 히스테리과도현상
Hysteric Transient Phenomenon of Under-Expanded Moist Air Jets
- Oh, S.J. (Andong National University) ;
- Shin, C.S. (Andong National University) ;
- Kim, H.D. (Andong National University) ;
- Setoguchi, T. (Saga University)
- 발행 : 2008.03.26
초록
the present study, the addresses the hysteric phenomenon of under-expanded jets with a help of a computational fluid dynamics methods. The under-expanded jets of both dry and moist air have been employed to the transient processes for the pressure ratio. It is known that under-expanded air jet produced during the process of increase in pressure ratio behaves different from the reducing process, leading to a hysteric phenomenon of under-expanded jet. It is also known that moist air jet significantly reduces the hysteric phenomenon found in the dry air jet, and that non-equilibrium condensation which occurs in the under-expanded moist air jet is responsible for these findings.
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