Data, Observations and Results……………………………………………………………2

Discussions…………………………………………………………………………………..4

Conclusion……………….………………………………………………………………….6

References………………………………………………………………..…………………6

Appendices

Summary
The name of the equipment used for this experiment is TecQuipment Reynolds Number and Transitional Flow Apparatus, H215/215A TecQuiment Hydraulic Bench, H1. This equipment is used to see the pattern of the water flow rate. This equipment can help us to find pattern of flow rate and also can help us to calculate the flow rate of the water. It is important to study how to use the Reynolds number to calculate the flow pattern and also the Reynolds numbers can be used to calculate other properties such as density, velocity, diameter and viscosity. We must understand that Reynolds number is a ratio of inertia to viscous effect of a flow. The experiment was conducted in UNITEN lab with my lab mates and was supervised by my lab instructor Mr. Ibrahim. The procedure and rules which has been taught by Mr. Ibrahim were strictly followed. We handle the equipment with care to avoid any damage. Before opening the pipe flow we checked all the safety precaution and the experiment is done one by one by my group members and me. Objective

To investigate the relationship of flow condition and fluid velocity.

...AND FLUID LABORATORY
EXPERIMENT 1 :
REYNOLDS NUMBER DEMONSTRATION
DATE OF EXPERIMENT | 02/07/2013 |
DEADLINE | 09/07/2013 |
SUBMISSION DATE | 09/07/2013 |
LECTURER’S NAME | PUAN NAIMAH BINTI YUSOFF |
GROUP MEMBERS ANDID NUMBERS | SYAZWAN BIN MOHD SAIFUDDIN | 121008736 |
| MUHAMMAD SYAMIM BIN ROSLI | 121008767 |
| MUHAMMAD HAFIZ BIN ABDUL WAHAB | 121008711 |
MARKS |
INTRODUCTION
The Reynolds number (Re) is a dimensionless number that gives a measure of the ratio of inertial forces to viscous forces and consequently quantifies the relative importance of these two types of forces for given flow conditions. Measurement of the fluid flow, often must understand its flow, flow rate distribution. Reynolds number is the characterization of fluid flow characteristics of an important parameter. Fluid flow when the inertial force F g and viscous forces (the friction) F m ratio known as the Reynolds number.
OBJECTIVES
The main objectives of conducting this experiment were:
1. To visualize laminar, transitional and turbulent flows.
2. To determine the conditions under which types of flow occur.
3. To compute Reynolds Number (Re) on fluid flow conditions.
EQUIPMENTS AND APPARATUS
a) Dye reservoir.
b) Stilling tank.
c) Observation tube.
d) Stopwatch
e) Graduated cylinder
THEORY
Reynolds number is used to distinguish between laminar,...

...Conclusion | 14 |
11. | References | 14 |
TITLE:
H1 – Osborne Reynolds Demonstration
INTRODUCTION:
Osborne Reynold’s Demonstration has been designed for students experiment on the laminar, transition and turbulent flow. It consists of a transparent header tank and a flow visualization pipe. The header tank is provided with a diffuser and stilling materials at the bottom to provide a constant head of water to be discharged through a bellmouth entry to the flow visualisation pipe. Flow through this pipe is regulated using a control valve at the discharge end. The water flow rate through the pipe can be measured using the volumetric tank (or measuring cylinder) of a Hydraulics Bench. Velocity of the water can therefore be determined to allow for the calculation of Reynolds’ number. A dye injection system is installed on top of the header tank so that flow pattern in the pipe can be visualised. In this experiment, we fix the time which is 5 second to collect the amount of the water. At the same time, we also observe the characteristic of the flow whether is it laminar, transition and turbulent flow.
THEORY:
Reynolds number basically determines the transition of fluid flow form laminar flow to turbulent flow. When the value of Reynolds number is less than 2300, laminar flow will occur and the resistance to flow will be independent of the pipe wall roughness (e). Meanwhile, turbulent flow occurs when the value...

...(model FM 11) in this experiment, with different of water volume flowrate, the characteristics of the flow could be determined. The rock inside the stilling tank are to calm the inflow water so that there will not be any turbulence interfere with the experiment. The water inlet and outlet valve and dye injector utilized to generate the required flow. A dye injection system is installed on top of the header tank so that the pattern of the flow can be visualized. The characteristic of the flow is observed, there are laminar, transition and turbulent flow. The volume of water is fixed for certain values and the times are recorded. Based on the results, the ranges are calculated for laminar and turbulence flow. It was proved that the Reynolds number is dimensionless by using the units only and using the appropriate formula.
TABLE OF CONTENTS
Abstract………………………………………………………………………………………. 1
Table of Contents…………………………………………………………………………….2
1.1 Introduction……………………………………………………………………………….3
1.2 Objective ……………………………………………………………………………….....3
1.3 Theory……………………………………………………………………………………..4
1.4 Diagram and Description of apparatus………………………………………………...5
1.5 Experimental procedures……………………………………………………………….7
1.6 Results…………………………………………………………………………………....8
1.7 Discussions ………………………………………………………………………………9
1.8 Sample calculations…………………………………………………………………….10
1.9 Conclusions……………………………………………………………………………..11
1.10...

...watt university Dubai Campus
Lab Report: Pipe Friction
MODULE LEADER: Dr. MEHDI NAZARINIA
1. Introduction
The flow of fluid in a pipe under pressure is used to reach many goals. A good knowledge of the fluid flow and pipe pressure at some point along the path of the pipe may facilitate to determine the size, capacity and material of the pipe for a system. In engineering and industry, the understanding of pipe flow is required for the control, transport, measure and storage of water or other fluids.
When a fluid is flowing through a pipe, it exerts a viscous resistance that creates a loss of energy. The pressure that is dropped along the pipe is called “frictional losses”. The inner wall of a pipe can have some effect on the frictional resistance. In the case of smooth wall of pipe, there is less effect on the frictional resistance. But when it is rougher, higher is the loss of pressure due to friction. As increasing the average of velocity, the pressure losses will increase too.
For constant conditions limits of flow, Osbourne Reynolds showed in 1883 that there are two kinds of flows according to the value of a dimensionless number called the Reynolds number and noted: ReD =ρV Dμ, where V is the flow velocity, D a characteristic size, and v the fluid kinematic viscosity. When the Reynolds number is low, the current lines are stationary, and the flow is said laminar....

...ABSTRACT
Reynolds number can be defined as a number of varieties of situations where a fluid is in relative with motion to a surface. This experiment is to observe the behavior of the flow of fluid either it is laminar or turbulent by calculating it's Reynolds number and the characteristic of the flow. Other than that, the range for laminar and turbulent flow can be calculated and the theory that Reynolds number is dimensionless can be proven.
The pump is opened to let the water flow. The dye injector valve is opened to let the dye flow into the glass tube which act as an indicator to the fluid behavior either it is laminar, transition or turbulent. The volume of water from outlet valve need to be collected for 10 second after the fluid motion is stabilized. The action was repeated for three times and its average Reynolds number was taken.
For fluid motion to be laminar they have Reynolds number less than 2000, turbulent has Reynolds number more than 4000 while transition is in between 2000 and 4000. The Reynolds number is dimensionless by using the formula Re = (Q x d) / (A x ν)
Table of Contents
Abstract 1
Table of contents 2
Introduction 3
Objective 4
Theory 5
Description of Apparatus 6
Experimental procedure 7
Results……………………………………………………………………………………………..8
Calculation………………………………………………………………………………………...9
Discussion 10
Conclusion...

...FABRICATION AND ANALYSIS OF REYNOLDS EXPERIMENT SETUP
Mini Project Report
Submitted in partial fulfillment of the requirements for the award of the degree of Bachelor of Technology in Mechanical Engineering by
SHRI HARSH (Roll No.: B060278ME)
PRABHAKAR (Roll No.: B060264ME) RAVI KUMAR (Roll No.: B060225ME) ASHISH KUMAR (Roll No.: B060205PE)
Department of Mechanical Engineering
NATIONAL INSTITUTE OF TECHNOLOGY CALICUT
CERTIFICATE
This is to certify that the report entitled “FABRICATION AND ANALYSIS OF REYNOLDS
EXPERIMENT SETUP” is a bonafide report of the Mini Project done by SHRI HARSH (Roll No.:
B060278ME), PRABHAKAR KUMAR(Roll No.: B060264ME), RAVI KUMAR (Roll No.: B060225ME) and ASHISH KUMAR(Roll No.: B060205PE) under my supervision, in partial fulfillment of the requirements for the award of the degree of Bachelor of Technology in Mechanical Engineering from National Institute of Technology Calicut, and this work has not been submitted elsewhere for the award of a degree.
Dr. R. VIJAYAKUMAR
(Guide)
Professor Dept. of Mechanical Engineering
Professor & Head
Dept. of Mechanical Engineering Place : NIT Calicut Date : 20TH APRIL 2009
ABSTRACT FABRICATION AND ANALYSIS OF REYNOLD’S EXPERIMENT SETUP.
SIGNIFICANCE OF WORK
The purpose of the project is to study the effect of Reynolds number, a dimensionless quantity, on pipe flow. Reynolds...

...University of Bahrain
College of Engineering
Department of Civil Engineering and Architecture
Fluid Mechanics
CENG231
Osborne Reynolds Demonstration
Sayed abbas Mohamed
20104762
03
1. Objective:
To reproduce the classical experiments conducted by Professor Osborne Reynolds concerning fluid flow condition.
2. Theory:
Reynolds number, Re is the internationally recognized criterion denoting fluid flow condition.
“ Re = 4Q/ πvd ”
Osborn Reynolds determined that values of Re could be assigned to define the transition from laminar to turbulent flow.
3. Apparatus:
-Osborne Reynolds apparatus. -Hydraulics Bench.
-measuring cylinder. -Stopwatch.
-Vegetable Dye. -Thermometer.
4. Procedure:
* Fill the reservoir with dye, position the apparatus on the bench and connect the inlet pipe to the bench feed. Lower the dye injector until it is just above the bell moth inlet. Close the control valve. Open bench inlet valve and slowly fill the head tank to the overflow level, then close the inlet valve .open and close flow control valve to admit water to the flow visualization pipe. Allow the apparatus to stand at least ten minutes before proceeding. Measure the temperature of the water.
* Open the inlet valve slightly until water trickles from the outlet pipe. Fractionally open the control...

...number for turbulent flow is more than 4000. From the results and calculation using the formula, the Reynold’s number was proved to be dimensionless.
2.0 INTRODUCTION
In this Reynolds-Osborne Demonstration experiment, the characteristics of laminar, transitional and turbulent flow is to be studied by deriving their Reynolds (Re) number. The flow being studied is defined as an internal flow constrained by an overarching surface where the Re number can be easily determined. The apparatus for the demonstration consist of a circulating water system, elevated water input connected to two outputs, dye injection unit and a discharge output used to measure the flow rate of the demonstration apparatus.
The flow type is visualized by dye injection and different flow characteristics can be obtained by manipulating fluid flow rate through modifying water input valve connected to the elevated water feed and/or discharge valve. The output water flow is volumetrically determined to derive its flow velocity.
3.0 OBJECTIVES
The aim of this experiment is to:
To observe the patterns for the flow whether it is laminar, transitional and turbulent flows.
To calculate and prove the Reynold’s number for the flow and its range.
To determine the behavior of the flow
THEORY
Reynolds number or shortlisted as Re number is a dimensionless property where it’s one of the basic tools involved in prediction of fluid...