Flow meter
Flow meter
(OP)
What can be affects of turbulance or recirculations near pressure tappings on orifice flow meter performance
ahmad
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: Flow meter
RE: Flow meter
axi-symmetric, swirl-free velocity profile upstream of the orifice meter. Therefore, if the velocity profile at the inlet to an orifice flow meter are not fully-developed, turbulent, axi-symmetric, and of swirl-free velocity, a measurement bias is likely to result - and the magnitude of the bias error can be up to several percent of meter reading for flow rate. The extent of the error will depend on the magnitude of the disturbance.
http://www.crt-services.com/pdf/papers11/Turbulenc...
RE: Flow meter
I am doing CFD validations of flow meters, for a certain flow meter, I am getting water velocity of 0.2 m/s exactly near/at the tappings (flange type) , which is not a common result. How this can affects the performance of flow meter ?
ahmad
RE: Flow meter
The flow requirements and pipe diameters before and after the flowmeter depend on the type of flowmeter. That is, disturbances affect differently to each type of flowmeter. You better check the specifics from the vendor.
Gabriel Castaneda, P.E.
http://www.gabcheminc.com