Fluidelastic instability in a tube array subjected to two-phase R-11 cross-flow

Dynamics of an in-Line Tube Array Subjected to Steam–water Cross-Flow. Part Iii: Fluidelastic Instability Tests and Comparison With Theory

“…The mass ratio between the liquid and gas phases is much smaller in air}water than in steam}water. As a result, the slip ratios between the phases are di!erent for the two mixtures (Feenstra et al 1995). The #ow regime transition boundaries are also not identical as is evident in the work of Feenstra et al (1995).…”

“…As a result, the slip ratios between the phases are di!erent for the two mixtures (Feenstra et al 1995). The #ow regime transition boundaries are also not identical as is evident in the work of Feenstra et al (1995). This may be important in cases where these boundaries are near or coincide with #uidelastic instability boundaries.…”

“…Freon tests have been carried out by several researchers. Pettigrew et al (1995) and Feenstra et al (1995) tested single-component freon two-phase #ow. Test results showed considerable deviations from air}water tests.…”

Cross-Flow-Induced-Vibrations in Heat Exchanger Tube Bundles: A Review

“…Flow regime map for vertically upward two-phase flow: From (Feenstra et al, 1986, Taitel et al, 1980. ,  (Axisa, 1985),  (Pettigrew et al, 1995),  (Feenstra et al, 1995).…”

Development of Design Criteria for Fluid Induced Structural Vibration in Steam Generators and Heat Exchangers

“…Most of the work in two-phase flows has been carried out for air-water flows, the justification being that an air-water flow system is fundamentally no different than steam-water flow. Several researchers (Pettigrew et al, 1995, Feenstra et al, 1995 have reported some data obtained from tests carried out with liquid-vapor freon. Experiments with Freon are closer to steam-water and can be easily carried out due to the lower temperatures involved.…”