Theoretical estimation of the applicability range of the differential pressure type flowmeters in presence of pulsation of the mass flux
Abstract
One and twodimensional mathematical models of the pulsating flow of an incompressible viscous fluid through a pipe orifice are formulated. The onedimensional model is formulated on the basis of the CauchyLagrange integral, while the twodimensional model is derived using Reynolds equations and the kepsilon turbulence model equations, which are solved by the finite difference method. The onedimensional model is found to be limited due to the timedependence of the coefficients. The applicability range of the model is assumed to be dependent on the mass flow pulsation amplitude and on the Strouhal number. The model is used to estimate the metrological properties of orifice flowmeters in the presence of pulsating mass flow. Comparison of the results with available experimental measurement data showed good conformity.
 Publication:

Archiv of Mechanics, Archiwum Mechaniki Stosowanej
 Pub Date:
 1987
 Bibcode:
 1987ArMeS..39..571D
 Keywords:

 Computational Fluid Dynamics;
 Differential Pressure;
 Flowmeters;
 Mass Flow;
 Oscillating Flow;
 Unsteady Flow;
 Finite Difference Theory;
 Incompressible Fluids;
 KEpsilon Turbulence Model;
 Nozzle Flow;
 Two Dimensional Models;
 Viscous Fluids;
 Fluid Mechanics and Heat Transfer