EFFECTS OF FLOW PULSATION ON A SINGLE-ROTOR TURBINE METER

The effects of pulsating flow on a single-rotor turbine meter with a r otor response parameter greater than unity were investigated experimen tally. Oscillating velocities and pressures at various pipe cross-sect ions were measured which enabled characterization of flow properties a t the turbine meter and their effect on meter error. Measurements conf irmed that meter error depends primarily on the velocity amplitude of the flow pulsation al the rotor. Moreover, it was shown that the veloc ity amplitude at the rotor results from the system response, which is determined by the system geometry, pulsation frequency, flow velocity, and sound speed. Lastly, a technique was developed to determine the m eter error from measurements of dynamic pressure in the pipe upstream or downstream of the turbine meter.