Discharge coefficients for 360deg bend flowmeters
Abstract
Calculations have been made of the pressure differential between the outside and inside curves of a 360deg bend flowmeter, and a theoretical formula for discharge coefficients in the case of turbulent flow was presented. Some theoretical considerations were also given to the discharge coefficients in the case of laminar flow. The discharge coefficients for five 360deg bend flowmeters with radius ratio in the range from 7 to 28 were measured in the Reynolds number range from 2 x 10(2) to 3 x 10(5). Empirical formulas for the discharge coefficients, which are backed by theoretical considerations and found in good agreement with experiments, were presented for both cases of laminar and turbulent flow.
 Publication:

JSME International Journal Series B
 Pub Date:
 August 1978
 Bibcode:
 1978JSMEB..21.1268I
 Keywords:

 Discharge Coefficient;
 Flowmeters;
 Laminar Flow;
 Pipe Flow;
 Turbulent Flow;
 Flow Equations;
 Flow Velocity;
 Mathematical Models;
 Pressure Distribution;
 Reynolds Number;
 Instrumentation and Photography