Fluid mechanic lab report

Pipe flow experiment lab report

The dynamic head values for all case also increase as the velocity increases. The shear rate of these fluid has been determined by the plotted graph. The proved can be seen in the data where the applied shear rate is 60 RPM. Different shape of spindle used results in large selection of viscosity ranges. Other units of viscosity are Poise P and centipoise cP. There is various types of non-Newtonian fluids which are shear thinning fluids latex paint , thickening fluids water-corn starch mixture , and Bingham plastics toothpaste. Fundamentals of Fluid Mechanics, Fifth Edition. If we refer to Figure 3 and Table 1, the viscosities of honey are higher than the viscosities of oil. However with basic knowledge of a car, this can save both time University of Nairobi Bsc. Therefore, oil is more viscous at greater spindle speed. The shear stress plotted can be said to be directly proportional to the velocity gradient. Each spindle has different shape from each other, results in different surface area and shear rate.

Viscosity of liquids decreases as the temperature increases due to the molecular structure of liquid molecules which are closely spaced, with strong cohesive forces between molecules, and the resistance to relative motion between adjacent layers of fluid is related to the intermolecular forces.

There is various types of non-Newtonian fluids which are shear thinning fluids latex paintthickening fluids water-corn starch mixtureand Bingham plastics toothpaste.

Fluid mechanic lab report

Naida Hamdan 1. Different shape of spindle used results in large selection of viscosity ranges. As the speed increases, the viscosity of honey decreases and the lowest value is at 60 RPM, which are cP and cP respectively.

Fluid flow experiment report

These vortices cause the dissipation of energy that leads to the overestimation of the torque and cause the false of the data obtained. While, for every spindle, the shear stress of oil increases as the spindle speed increases. Newtonian fluids are fluids for which the shearing stress is linearly related to the rate of shearing strain such as water, oil and gasoline. For the honey fluid experiment, the viscosity shows the highest values at 6 RPM for spindle 1 and spindle 2, which are cP and cP respectively. According to Irgens , the shear stress can simply be calculated by multiplying the values of the viscosity with the spindle speed velocity gradient. Rheology and Non-Newtonian Fluids 4- 6. There are few possible source of error that has falsified the data obtained which are the inertia and secondary flows. Typeset by Charon Tec Ltd. In convergent flow, water flows from the wider tube to the narrow tube and the total head calculation shows that as the water flow to the narrower tube the total head decreases. The values of viscosities are directly taken from Table 1 for honey and Table 2 for oil. The viscosity in liquids is caused by the strong cohesive forces between molecules. The impact of jet on a surface is a common day engineering application. The output water flow is volumetrically determined to derive its flow velocity. It shows the lowest value of viscosity which is cP. It consists of a quarter circle block attached to a cantilevered arm with a rectangular surface on the other end.

The results that we collected prove that the theory is correct. The dynamic head values for all case also increase as the velocity increases. Define Newtonian and non-Newtonian fluid.

fluid mechanics lab experiments pdf

The areas of research include flow imaging, control, jets and wakes, micro-scale transport, and interfacial fluid dynamics. The impact of jet on a surface is a common day engineering application.

head loss in pipes lab report

Introduction to properties of matter: elasticity in solids, viscosity in fluids, friction. However with basic knowledge of a car, this can save both time University of Nairobi Bsc. The shear rate of these fluid has been determined by the plotted graph.

Fluid mechanics lab report pdf

The impact of jet on a surface is a common day engineering application. For the oil experiment, there is no obvious decreasing trend of the viscosities. It shows the lowest value of viscosity which is cP. According to Irgens , the shear stress can simply be calculated by multiplying the values of the viscosity with the spindle speed velocity gradient. In divergent flow which water flows from the narrower tube to the wider tube, the total head calculation shows that total head decreases as it flow from narrower tube to the wider tube. Related Papers. Me and my lab partners are going to be the first students to do this experiment this semester and so are the other groups in this session they will be the first to do their assigned experiments. In convergent flow, water flows from the wider tube to the narrow tube and the total head calculation shows that as the water flow to the narrower tube the total head decreases. Other units of viscosity are Poise P and centipoise cP. By doing this, people will find themselves less likely to be stranded and also less likely to need to spend money on car repairs if they can do something themselves. Furthermore, the wall slip, misalignment of the cylinder geometry of spindles to the viscometer and viscous heating also effect the shear rate and the data readings Macosko, When the rate of shearing strain is directly proportional to the shearing stress, the constant of proportionality is called as absolute viscosity or dynamic viscosity.
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Fluid Mechanics Laboratory