# Reynolds Report

Topics: Reynolds number, Viscosity, Fluid mechanics Pages: 2 (418 words) Published: September 10, 2012

Summary………………………………………………………………………………….…2

Objective……………………………………………………………………………….…….2

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.

Data, Observations and Results
Table 1 Sample calculation
Flow rate, Q = volume(mᵌ)time(s)
= 0.001259
=0.00000385 mᵌ/s

The area is A=πd²4
= 3.14159×(0.012)²4
=1.13×10^ (-4) m²

(B) Graph 1: kinematics viscosity graph
With the above graph the kinematics viscosity is = 0.9×10^ (-6) m²/s

The equation use to find Re number is from equation 5 which is:

Re=udV…………. (5)
=0.135(0.012)0.9×10^ (-6)
=1797.34(transition flow)...