Design and Cfd Analysis of Orifice Plate at Different Velocity Ratios

Abstract

 Flow measurement is measurement of the quantity of the fluid that passes through the pipe, duct or an open channel. Flow may be measured by measuring the velocity of fluid over a known area. Differential pressure measuring devices such as orifice plates and nozzles are extensively applied in several industries to estimate the mass flow rate running through a channel by correlating the measured pressure loss.

 In this thesis, an orifice plates with different geometry were designed and compared on the basis of their coefficient of discharge. This was done with the help of simulations done with k-ε and model on CFD as a solver. Simulations were carried out on a single hole, perforated (6 holes, 8 holes, 12 holes and 14 holes) at different Reynolds numbers (8000, 10000 and 12000).

In this thesis the CFD analyses to determine the pressure drop turbulence intensity, mass flow rate, and velocity.

3D modeled in parametric software Pro-Engineer and analysis done in ANSYS.