Abstract
Multiphase flow meters are widely used in nuclear, petroleum and chemical industries. Here the flow rate is defined indirectly by the differential pressure measurement over the device. An additional measurement is required to estimate average density of the phase mixture. This could be done by means of the gamma-ray, electromagnetic or acoustic tomography. The accuracy of the technique is dependent on flow morphology. The present paper reports the results of CFD-modelling of the gas-liquid flow through the vertical flow meter accompanied by a flow conditioner. The model is used to consider the morphology for three different combinations of liquid and gas flow rates. The model demonstrates high non-uniformities of the flow field at the entrance of the flow meter and generally confirms the agreement of flow morphology with previous experimental observations for vertical pipes.
Highlights
Multiphase flow consists of several chemically immiscible materials [2, 4], flows of this type are frequently utilized nuclear, petroleum and chemical industries
The technology is based on the definition of the flow rate of each phase which comes through a multiphase flow meter
The differential pressure measurement over the Venturi nozzle, orifice or Vcone is most-commonly utilized for the estimation of flow rate of all the phases (ISO 5167:2003), i.e. total flow rate
Summary
Multiphase flow consists of several chemically immiscible materials [2, 4], flows of this type are frequently utilized nuclear, petroleum and chemical industries. The flow morphology is strongly dependent on the interphase transfer of mass, momentum and energy, especially for flow channels of complex configuration, which results in non-uniform relative distribution of phases in space [9], flow regime change due to increase in difference between gas and liquid velocities (slip ratio) (Kuo and Wallis, 1988). This leads to formation of the pressure profile that is significantly different from the one for the single phase. This contribution aims the CFD model to evaluate flow morphology in a vertical flowmeter nozzle
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
