Turbulent Events and Gas-Side Mass Transfer Coefficients in a Wavy Air-Water Stratified Flow
Turbulence structure on the gas side of a wavy stratified flow was experimentally investigated in a near horizontal 18.7 cm (H) 10 cm (W) 5.5m (L) rectangular duct.By applying the Variable Interval Time Averaging (VITA) technique to the hot wire anemometer measurements frequency of occurrence of tur...
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| Format: | Article |
| Language: | English |
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Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
2011-06-01
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| Series: | Iranian Journal of Chemistry & Chemical Engineering |
| Subjects: | |
| Online Access: | http://www.ijcce.ac.ir/article_6290_475b3369bd84c934c01075fe5efd922f.pdf |
| _version_ | 1831537975296524288 |
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| author | Mohsen Nasr Esfahany Nazi Amanatchi |
| author_facet | Mohsen Nasr Esfahany Nazi Amanatchi |
| author_sort | Mohsen Nasr Esfahany |
| collection | DOAJ |
| description | Turbulence structure on the gas side of a wavy stratified flow was experimentally investigated in a near horizontal 18.7 cm (H) 10 cm (W) 5.5m (L) rectangular duct.By applying the Variable Interval Time Averaging (VITA) technique to the hot wire anemometer measurements frequency of occurrence of turbulent events were detected near the air-water interface. Experimental results showed that frequency of occurrence of turbulent events over the waves increased with the interfacial shear at the interface. Mass transfer coefficients were calculated making use of eddy cell model and calculated turbulent event frequencies. Predicted mass transfer coefficients show good agreement with experimental correlation. Conditional averages of turbulent events were obtained by applying VITA technique to the measured instantaneous velocities. Despite near wall region, both ejection and sweep can initiate turbulent event at the interface. |
| first_indexed | 2024-12-16T23:15:53Z |
| format | Article |
| id | doaj.art-9e3526f731a343f0b1e3dff390c3961f |
| institution | Directory Open Access Journal |
| issn | 1021-9986 1021-9986 |
| language | English |
| last_indexed | 2024-12-16T23:15:53Z |
| publishDate | 2011-06-01 |
| publisher | Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR |
| record_format | Article |
| series | Iranian Journal of Chemistry & Chemical Engineering |
| spelling | doaj.art-9e3526f731a343f0b1e3dff390c3961f2022-12-21T22:12:18ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering1021-99861021-99862011-06-0130291996290Turbulent Events and Gas-Side Mass Transfer Coefficients in a Wavy Air-Water Stratified FlowMohsen Nasr Esfahany0Nazi Amanatchi1Faculty of Chemical Engineering, Isfahan University of Technology, Isfahan, I.R. IRANFaculty of Chemical Engineering, Isfahan University of Technology, Isfahan, I.R. IRANTurbulence structure on the gas side of a wavy stratified flow was experimentally investigated in a near horizontal 18.7 cm (H) 10 cm (W) 5.5m (L) rectangular duct.By applying the Variable Interval Time Averaging (VITA) technique to the hot wire anemometer measurements frequency of occurrence of turbulent events were detected near the air-water interface. Experimental results showed that frequency of occurrence of turbulent events over the waves increased with the interfacial shear at the interface. Mass transfer coefficients were calculated making use of eddy cell model and calculated turbulent event frequencies. Predicted mass transfer coefficients show good agreement with experimental correlation. Conditional averages of turbulent events were obtained by applying VITA technique to the measured instantaneous velocities. Despite near wall region, both ejection and sweep can initiate turbulent event at the interface.http://www.ijcce.ac.ir/article_6290_475b3369bd84c934c01075fe5efd922f.pdfturbulent flowturbulent eventtwo phase flowstratified flowmass transfer |
| spellingShingle | Mohsen Nasr Esfahany Nazi Amanatchi Turbulent Events and Gas-Side Mass Transfer Coefficients in a Wavy Air-Water Stratified Flow Iranian Journal of Chemistry & Chemical Engineering turbulent flow turbulent event two phase flow stratified flow mass transfer |
| title | Turbulent Events and Gas-Side Mass Transfer Coefficients in a Wavy Air-Water Stratified Flow |
| title_full | Turbulent Events and Gas-Side Mass Transfer Coefficients in a Wavy Air-Water Stratified Flow |
| title_fullStr | Turbulent Events and Gas-Side Mass Transfer Coefficients in a Wavy Air-Water Stratified Flow |
| title_full_unstemmed | Turbulent Events and Gas-Side Mass Transfer Coefficients in a Wavy Air-Water Stratified Flow |
| title_short | Turbulent Events and Gas-Side Mass Transfer Coefficients in a Wavy Air-Water Stratified Flow |
| title_sort | turbulent events and gas side mass transfer coefficients in a wavy air water stratified flow |
| topic | turbulent flow turbulent event two phase flow stratified flow mass transfer |
| url | http://www.ijcce.ac.ir/article_6290_475b3369bd84c934c01075fe5efd922f.pdf |
| work_keys_str_mv | AT mohsennasresfahany turbulenteventsandgassidemasstransfercoefficientsinawavyairwaterstratifiedflow AT naziamanatchi turbulenteventsandgassidemasstransfercoefficientsinawavyairwaterstratifiedflow |