Effect of geometrical parameters in coefficient of discharge and reynolds number through venturimeter

Abstract

The experiment is intended to find the performance characteristics of venturimeter with different beta ratios (β) 0.6705, 0.67 and 0.56. The type of flow in the pipe and discharge, represent on Reynolds number (Re) and coefficient of discharge (Cd) through the pipe flow. Standard fluid (water) is taken as working fluid having density (ρ) 1000 kg/m3 and manometric fluid as mercury, having density (ρ) 136000 kg/m3. Kinematic viscosity depends on density and dynamic viscosity. The Dynamic viscosity (µ) of water is 0.0006532 and 0.000798 Ns/m2 taken in two different temperature as 30̊ C and 40̊ C. Upstream length 1.28m, 1.38m and 1.48m are taken in experiment and found that the Reynolds number of the working fluid increases with increase in coefficient of discharge and initially increases and certainly decreases with increase in upstream length.