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Details of Grant 

EPSRC Reference: GR/S17758/01
Title: Joint Project on Transient Multiphase Flows (TMF3)
Principal Investigator: Thompson, Professor CP
Other Investigators:
Yeung, Professor H
Researcher Co-Investigators:
Project Partners:
Consortium of Oil Companies
Department: Sch of Engineering
Organisation: Cranfield University
Scheme: Standard Research (Pre-FEC)
Starts: 01 July 2003 Ends: 30 November 2006 Value (£): 281,084
EPSRC Research Topic Classifications:
Multiphase Flow Oil & Gas Extraction
EPSRC Industrial Sector Classifications:
Energy
Related Grants:
GR/S17765/01 GR/S17789/01 GR/S17796/01
Panel History:  
Summary on Grant Application Form
The work forms part of a Joint Project on Transient Multiphase Flow (TMF3) as described in the Case for Support. The work at Cranfield University includes both modelling and experimental studies. The modelling work is focussed around the development and implementation of multifluid models for two-phase gas-liquid and three-phase gas-liquid-liquid flows. In these models, equations are written for each phase and the interactions between phases are described in terms of (often empirical) closure laws . To capture the details of complex flows such as slug flow, large numbers of grid nodes are required and a major aim of the work at Cranfield in Sub-Project I is to develop numerical algorithms (for example adaptive gridding) to the point where it becomes economic to do such calculations on large real systems with hydrodynamic slug flow. Another aim of the modelling work (in Sub-Project VI) is to represent three-phase flows with liquid-liquid mixing in terms of exchanges between multiple layers of pure fluids and mixtures. In the Sub-Project VII, the Cranfield large-scale flexible riser rig will be used to study three-phase flows in typical riser geometries. The use of flexible risers leads to a number of problems with severe slugging and associated mechanical vibration problems. In the proposed work, these will be studied with particular attention being paid to the interactions between the various sections of the riser sytem and the cross sectional and longitudinal transient phase distributions.
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Further Information:  
Organisation Website: http://www.cranfield.ac.uk