Lab_Sheet_1_Bernoulli's theorem

# Lab_Sheet_1_Bernoulli's theorem - Swinburne University of...

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1 Swinburne University of Technology School of Engineering (Sarawak Campus) HES 2340 Fluid Mechanics Semester 2, 2011 Lab Sheet: FLOW THROUGH A VENTURI METER Name:………………………………………………… Student ID:…………………………………………… Group Number:…………………………………….…. Date performed experiment:…………………………. . Lab supervisor:………………………………………. ..

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2 TABLE OF CONTENTS Page OBJECTIVE …………………………………………………………………3 1.0 INTRODUCTION …………………………………………………………………….3 2.0 GENERAL DESCRIPTION …………………………………………………………4 2.1 Parts Identification ………………………. .……………………………………. .6 3.0 SUMMARY OF THEORY 3.1 Derivation Using Streamline Coordinates……………………………………….7 3.2 Bernoulli’s Law…………………………………………………………………. .8 3.3 Static, Stagnation and Dynamic Pressures ……………………………………. ...8 3.4 Pressure Varies Along the Pipe …………………………………………………12 3.5 Venturi Meter …………………………………………………………………. ..12 4.0 EXPERIMENTAL PROCEDURE 4.1 General Start-up Procedures………………………….…………………………14 4.2 Discharge Coefficient Determination ……………………………….…………15 4.3 Flow Rate Measurement with Venturi Meter ………………………………….16 4.4 Bernoulli’s Theorem Demonstration…………………………………………. ..16 4.5 General Shut-down Procedures………………. .……………………………….17 5.0 MAINTENANCE AND SAFETY PRECAUTIONS ……………………………. ..18 REFERENCES ………………………………………………………………………19 APPENDIX A Venturi Meter Drawing APPENDIX B Typical Experimental Results
3 OBJECTIVE 1. To determine the discharge coefficient of the venturi meter. 2. To measure flow rate with venturi meter. 3. To demonstrate Bernoulli’s theorem. APPARATUS REQUIRED Bernoulli’s theorem apparatus 1.0 INTRODUCTION Bernoulli’s Theorem Demonstration apparatus consists of a classical Venturi made of clear acrylic. A series of wall tappings allow measurement of the static pressure distribution along the converging duct, while a total head tube is provided to traverse along the centre line of the test section. These tappings are connected to a manometer bank incorporating a manifold with air bleed valve. Pressurization of the manometers is facilitated by a hand pump.

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## This note was uploaded on 11/19/2011 for the course HES 2340 taught by Professor Tomedwards during the Three '09 term at Swinburne.

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Lab_Sheet_1_Bernoulli's theorem - Swinburne University of...

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