Abstract
The prediction of two-phase flow regime in the horizontal pipings during a loss-of-coolant accident (LOCA) is important for safety analysis of a pressurized water reactor (PWR). The flow regime transition conditions for a horizontal two-phase air-water flow were studied using a large-height, horizontal rectangular duct test section. The duct dimensions were 700 mm in height, 100 mm in width and 28.3 m in length. The experimental criterion for the flow regime transition from the stratified to slug flow regimes, in terms of the local void fraction and the non-dimensional gas-liquid relative velocity, agreed qualitatively with the prediction by the Mishima-Ishii model that is based on an idea that the interfacial waves with the largest growth rate will develop into a slug. However, the transition in the experiment occurred at systematically lower (by about 40 %) relative velocities than the prediction by the Mishima-Ishii model. Therefore, an experimental correlation for this flow regime transition has been developed by modifying the Mishima-Ishii model. (author).
Kondo, Masaya;
Nakamura, Hideo;
Anoda, Yoshinari;
Kukita, Yutaka
[1]
- Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
Citation Formats
Kondo, Masaya, Nakamura, Hideo, Anoda, Yoshinari, and Kukita, Yutaka.
Experimental study on two-phase flow regime transition from stratified to slug flow in a large-height horizontal duct.
Japan: N. p.,
1992.
Web.
Kondo, Masaya, Nakamura, Hideo, Anoda, Yoshinari, & Kukita, Yutaka.
Experimental study on two-phase flow regime transition from stratified to slug flow in a large-height horizontal duct.
Japan.
Kondo, Masaya, Nakamura, Hideo, Anoda, Yoshinari, and Kukita, Yutaka.
1992.
"Experimental study on two-phase flow regime transition from stratified to slug flow in a large-height horizontal duct."
Japan.
@misc{etde_10149597,
title = {Experimental study on two-phase flow regime transition from stratified to slug flow in a large-height horizontal duct}
author = {Kondo, Masaya, Nakamura, Hideo, Anoda, Yoshinari, and Kukita, Yutaka}
abstractNote = {The prediction of two-phase flow regime in the horizontal pipings during a loss-of-coolant accident (LOCA) is important for safety analysis of a pressurized water reactor (PWR). The flow regime transition conditions for a horizontal two-phase air-water flow were studied using a large-height, horizontal rectangular duct test section. The duct dimensions were 700 mm in height, 100 mm in width and 28.3 m in length. The experimental criterion for the flow regime transition from the stratified to slug flow regimes, in terms of the local void fraction and the non-dimensional gas-liquid relative velocity, agreed qualitatively with the prediction by the Mishima-Ishii model that is based on an idea that the interfacial waves with the largest growth rate will develop into a slug. However, the transition in the experiment occurred at systematically lower (by about 40 %) relative velocities than the prediction by the Mishima-Ishii model. Therefore, an experimental correlation for this flow regime transition has been developed by modifying the Mishima-Ishii model. (author).}
place = {Japan}
year = {1992}
month = {Feb}
}
title = {Experimental study on two-phase flow regime transition from stratified to slug flow in a large-height horizontal duct}
author = {Kondo, Masaya, Nakamura, Hideo, Anoda, Yoshinari, and Kukita, Yutaka}
abstractNote = {The prediction of two-phase flow regime in the horizontal pipings during a loss-of-coolant accident (LOCA) is important for safety analysis of a pressurized water reactor (PWR). The flow regime transition conditions for a horizontal two-phase air-water flow were studied using a large-height, horizontal rectangular duct test section. The duct dimensions were 700 mm in height, 100 mm in width and 28.3 m in length. The experimental criterion for the flow regime transition from the stratified to slug flow regimes, in terms of the local void fraction and the non-dimensional gas-liquid relative velocity, agreed qualitatively with the prediction by the Mishima-Ishii model that is based on an idea that the interfacial waves with the largest growth rate will develop into a slug. However, the transition in the experiment occurred at systematically lower (by about 40 %) relative velocities than the prediction by the Mishima-Ishii model. Therefore, an experimental correlation for this flow regime transition has been developed by modifying the Mishima-Ishii model. (author).}
place = {Japan}
year = {1992}
month = {Feb}
}