CFD analysis for choke valves in O&G applications





Tanks, CFD




The challenge

This project was to determine the flow co-efficient (Cv) curves for two size configurations of a choke. Our client had seen a poor correlation between physical testing and calculations completed by others, and part of this work was for DOCAN to determine the cause of this poor correlation.​

oil and gas choke

The DOCAN solution

Computational Fluid Dynamics (CFD) was used to determine the pressure drop across the valve at varying stages of valve opening position to then generate the flow co-efficient (Cv) curve data.

Additionally, a review of previous physical test data and calculation work was conducted, to offer an explanation of the poor correlation between the previous calculations and test data.​


The outcome

The results presented show good correlation of trends between the flow coefficient (Cv) curves determined from CFD and from physical testing for both valve configurations, however, there appeared to be a discrepancy within the client test data.​

The DOCAN results indicated that CFD can be used with a high level of confidence to determine the flow coefficient data for a choke valve, but it is important that any further testing completed should follow a strict QA method to confirm the valve and configuration are correct and traceable.

cfd analysis of choke valve

Project summary

TaskApplicationDOCAN Associate ExpertiseCFDSiemens FloEFDHealth and Safety
CAD geometryBuild 3D model
CFD model buildingModified Parts and Meshing
Flow rates & boundary conditions
ReportingInformation summary

What our client says

"We at Power Chokes feel that DOCAN Ltd has provided excellent service in Finite Element Analysis of our RCD products. They have proven themselves to be a critical element of our design process, never failing to deliver. Their methods and insights are invaluable to any design process. We look forward to a continued relationship with DOCAN in the years to come."
Manufacturing Manager
Power Chokes