Hello,

Flow turbulence will cause change in velocity then emf measures flow changes by change in velocity in turn affected by renolds number. advice?

 

Having worked for many years in the Water industry, the Reynolds Number is not of particular interest to control engineers.

The only time it was of particular interest was a case of excess turbulence in a flume where the flowrate was being measured. A Fluid dynamics expert was brought in to remove the turbulence, which he did at great expense.

 

Being just a little snarky, that's one of the reasons people have flow-related problems. Dave Spitzer and I spend some time each year helping people who have screwed up flow profiles because they didn't pay attention to Reynolds number.


Walt Boyes, Life Fellow, ISA; Fellow InstMC
Chartered Measurement and Control Technologist
Spitzer and Boyes LLC


**Spitzer and Boyes LLC publishes the Industrial Automation and Process Control INSIDER (www.iainsider.com)**

 

It was a few years ago, but there was a similar incidence of turbulence where the manufacturer was brought in.

The contractor with the best of intentions has purchased the then new digital range of flowmeter which we could not get to work correctly.
It transpired that the wastewater had the 'wrong type of foam' floating around - the cure was to install the old tried and tested analogue flowmeter.