Gas-wall shear stress distribution in horizontal stratified two-phase flow
- King Mongkut`s Univ. of Technology Thonburi, Bangkok (Thailand)
Gas-liquid stratified flow is encountered in several industrial applications including the flow of oil and natural gas in petroleum industries, the flow of refrigerants in air conditioning and refrigeration systems and the flow of steam and water in emergency core cooling (ECC) systems in nuclear /reactors during the postulated loss of coolant accidents (LOCA). Gas-wall shear stresses in the stratified gas-liquid flow in pipes are obtained using Preston`s method for measuring skin friction in the turbulent boundary layer. The non-dimensional relationship between the Preston tube reading and wall shear stress over a wide range of single-phase gas flow rates is reported. The wall shear stresses up to positions close to the gas-liquid interface, for various interface conditions, are obtained for the two-phase flow experiment. The distribution of the gas-wall shear stress and the effect of diameter on those distributions are investigated. The friction factors obtained from the experiments are also compared with those reported in the literature.
- OSTI ID:
- 687516
- Journal Information:
- International Communications in Heat and Mass Transfer, Vol. 26, Issue 6; Other Information: PBD: Aug 1999
- Country of Publication:
- United States
- Language:
- English
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