Design & Development of Model for Flow Measurement by Venturimeter & Orifice Meter

In this thesis, The Venturimeter & Orifice meter, typical obstruction type flow meters are widely used in industry for flow measurements. The application of these Flow meters are found in Aviation, Automotive, chemical, petro chemical industries, etc. Four parameters namely pressure drop and Velocity, discharge, nozzle angle of the Venturi will be analyzed using computational fluid dynamics. Differential pressure at minimum pressure loss is the most desirable condition for an ideal Flow Meter. This research covers the following aspects: To study the theory of the Orifice as well as venturimeter and calculate the data theoretically by using Bernoulli’s equation, to analyze the experimental data. The study aims at comparing the results calculated by both, the computational and experimental methods. The location of vena-contracta was also estimated from CFD simulations. the CFD analyses to determine the pressure drop, turbulence intensity, mass flow rate, and velocity. Finite Element Analysis has been used to compute the permanent pressure loss and relative pressure loss for incompressible fluid for orifice plate. The value of Coefficient of Discharge depends on the type of flow, pressure tappings and contour of the obstruction. Software used are AUTO-CAD software and analysis done in ANSYS.