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Viscosity Lab Report

Viscosity Lab Report - Viscosity Professor Ananda Mysore...

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Viscosity Professor Ananda Mysore ME120 Experimental Methods SJSU CoE. MAE 10/19/2009 Contents
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Abstract The Viscosity Measurement Experiment tested the changes of 10W-30 motor oil flow speed and temperature changes. This was accomplished with a viscometer and a data acquisition program to gives us the opportunity to change these parameters and visually see what is happening. The results of the experiment indicate that as the speed of the spindle is increased, the viscosity of the fluid is decreased. The data also shows that as the temperature increased, the viscosity decreased and the torque required to turn the spindle decreased. 2
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Background and Objectives Viscosity is a measure of how much a fluid resists flow. This is due to the deformation that shear stress applies to the fluid. Due to the internal resistance of the fluid, viscosity can be considered a form of friction. There are many types of fluids, each having a certain degree of viscosity. There are also many variables that can affect a fluids viscosity. For example motor oil has many different weights that you can choose from. The viscosity of motor oil can change depending on wear and tear, temperature, and application it’s used on. During this lab, the student was able to measure viscosity of 10W30. The measurements taken were used to determine the viscosity as a function of temperature. This lab was done so the student could understand the concept of viscosity and how it can be affected. It allowed the student to become familiar with a rotating spindle type viscometer (by Brookfield Instrument) and a computer with Win Gather software.
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