Viscosity Measurement

Viscosity Measurement - Viscosity Measurement ME 120...

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Viscosity Measurement ME 120 Experimental Methods Lab Section 2 Experiment Date: April 6, 2009 April 13, 2009
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Abstract The Viscosity Measurement Experiment gave us the opportunity to see how the viscosity of 10W-30 motor oil changes when the speed of the flow and temperature changes. This was determined by using a viscometer and a Wingather32 program to gives us the opportunity to change these parameters and visually see what is happening. What was found was that as the speed of the fluid is decreased, the viscosity of the fluid is decreases. When the oil has an increasing temperature, the viscosity decreases allowing the flow run a lot more smoothly. Background & Objectives
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Knowing the viscosity is an important characteristic to have about a particular liquid. The viscosity of a liquid represents the fluid’s resistance to flow. The resistance to flow is caused by the fluid’s friction that depends on how viscous a fluid is. i A good way to differentiate how viscous a fluid is by seeing how thick and fast the fluid flows and moves. Fluids that are more viscous flow very slowly and are very thick like a honey or maple syrup substance. Water is a good example of a liquid with a low viscosity because it is able to move and flow very easily. These different types of fluids can also be classified into two categories; Newtonian and non-Newtonian fluids. The technical way to define a Newtonian fluid is to see it graphically. The graph of the fluid stress versus strain graph would be linear and pass through the origin. ii What this means is that the fluid continues to flow regardless of the forces acting on it. However, a Newtonian fluid truly depends on the liquid properties as-well as temperature and
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This note was uploaded on 09/08/2010 for the course ME 120 at San Jose State University .

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Viscosity Measurement - Viscosity Measurement ME 120...

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