Naslov
The Effects of Asymetric Flows in the Coriolis Mass Flowmeter with the Straight Parallel Tubes: Numerical Simulation

Autori
Kesić, Petar ; Damić, Vjekoslav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
FLOMEKO 2000 / - Salvador : IPM, 2000

Skup
FLOMEKO 2000, The 10-th International Conference on Flow Measurement, IMEKO

Mjesto i datum
Brazil; Salvador, 04.06.2000. - 08.06.2000

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Coriolis mass flowmeter; mass flowmeter; fluid flowrate; bond

Sažetak
The effects of flow disturbances on the performance of the Coriolis mass flowmeter(CMF) with two straight parallel tubes were invetigated numerically. Two types of flow disturbances were studied numerically using the bond-graph presentation. The first one represents a local restriction in one of the pipes that causes asymmeric flow in pipes. In the second case of operating conditions, uniformly obliterated tubes were considered. The effect of the obliterated layer thickness with different densities was analysed. It was found that the local restriction at the tube entrance does not effect the sensitivity coefficient, while the flowrate in the tube changes from zero to a rate equal to that in the parallel tube. The obliteration does not effect the sensitivity coefficient either, but changes the first natural mode of tube vibration. If the CMF is used for density measurement, the obliteration may cause significant error.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja, Zrakoplovstvo, raketna i svemirska tehnika

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