The internal property of a fluid for its resistance to flow is known as viscosity. Intrinsic viscosity of polyvinyl alcohol kyle groden november 4th and 10th, 2015 partner. The aim of the experiment is to determine the viscosity of glycerine a viscous fluid by using. Each virtual experiment includes a corresponding theoretical section. Lab 1 viscosity lab report thermodynamics and fluids studocu. Stokes law, reynolds number, and measuring liquid viscosity. Change the temperature and calculate the viscosity.
Viscosity is a tensorial quantity that can be decomposed in different ways into two independent components. Viscosity coefficient of a liqud by stokes method experiment coefficient of viscosity using stokes method youtube mech props experiment viscosity stokes method youtube. The ball drop viscosity measurement described in this report is conveniently. Download as docx, pdf, txt or read online from scribd.
P1 determination of the viscosity of oil introduction in science both liquids and gases are called fluids, because they both can flow. Measurement of kinematic viscosity purpose to measure the kinematic viscosity of a fluid, the uncertainty of the measurement, to compare the measured kinematic viscosity to the manufacturers value, and to demonstrate the effects of viscosity by comparison of the fall times for spheres of different densities. Viscosity describes a fluids internal resistance to flow and may be thought of as a measure of fluid friction. O determine density using either a westphal balance or pyncnometers. Viscosity report viscosity measurement a report on an. Density, specific gravity, and api gravity on globalspec.
Fluids lab 1 fall 2003 viscosity objectives of the. In 1844 hagenpoiseuille did their work concerning the interpretation that liquid flow through tubes and he proposed an equation for viscosity of liquids. Macdonald, physics 2nd edition, copies available at the resource centre. Intrinsic viscosity of polyvinyl alcohol kyle groden home. Viscosity experiment the flow of water, q, is to be measured at. The collected data is used to compare and contrast to the ideal binary solutions and their components. Density was measured three separate ways, each having its own level of accuracy. Zakariya alshukaili abstract using a size 150 oswald viscometer, the intrinsic viscosities of uncleaved and cleaved kio 4. Temperature can have a major effect on the value of the. Conclusionthe hypothesis did not support the results as the hypothesized order of viscosity for the liquids are different than the results.
The viscometer is meant to approximate an infinitely long column of infinite diameter. Viscosity stokes law viscosity is a property of uids liquids and gases which determines how much resistance is experienced by an object trying to move through the uid. Experiment 1 looks at two fluid properties, density and viscosity. Compare your results of the measurement of the viscosity with the accepted values. To determine the kinematic viscosity of four grades of motor oil at various temperatures. The dimensions of viscosity are force per unit area divided by velocity gradient as in eq. The types of manometers such as utube, piezometric tube and inclined manometer are presented in the experiment no. The accuracy of measurements of viscosity of liquids robert s.
The viscosity test was performed in two different conditions in which one we kept the temperature constant and. The order of viscosity from lowest to highest is water, sunflower oil, milk, shampoo and honey while the hypothesized order is water, milk, sunflower oil, shampoo and honey. P1 determination of the viscosity of oil introduction. Before the experiment this wire will have been arranged close to the tube wall. The methods in this experiment determine the dynamic viscosity through dropping. You measured that the drag force was proportional to v 2 and to the radius squared namely, the area. This report discusses the methods with which the viscosity of liquid glycerin is determined, and uses the data to validate stokes law. In this experiment, youre going to learn about viscosity. Students calculate the viscosity of various household fluids by measuring the amount of. Viscosity of a liquid science experiment video viscosity of liquids science experiment supplies needed 4 clear glass jars of read more.
Points to remember while performing the experiment in a real laboratory. This is made for parents and teachers viscosity races investigating the flow of liquids experiment how to test viscosity of liquids what you need. A process of viscosity measurement, by measuring the speed of. Viscosity at final plays a key role in th processing stage. Support from the program is sufficient to enable the students to carry out a virtual experiment sensibly and on their own. Highly viscous liquids, like motor oil or molasses, take much longer to flow from their container than a relatively low viscosity liquid, like benzene or diethyl ether. Viscosity coefficient of a liqud by stokes method experiment. Fluids can flow through tubes, like blood through veins for example, and objects can.
All liquids appear resistance to flow change from liquid to another, the water faster flow. Strain is the geometrical measure of deformation representing the relative displacement between particles in the material body, i. Experiment 1 viscosity measurement purpose the purpose of this experiment is to measure the viscosity of a glycerinwater mixture with a thomasstormer viscometer. The aim of this experiment is to determine the change in the viscosity of drilling fluid. The viscosity of the given liquid with respect to water at laboratory. In the experiment two, weights are used to calibrate bourdon pressure gage. Always wear lab coat and gloves when you are in the lab. This sample is completed by emma with health care as a major. The final experiment had possible errors due to the experimental setup.
Two of the experiments provided results consistent with the known value for the viscosity. Jul 12, 2010 ostwalds viscometer is a traditional viscometer to measure the viscosity of a liquid. Determination of viscosity of organic solvents procedure. Chem355 experiment 6 viscosity of high polymer solutions a polymer is a large molecule macromolecule composed of many simple units that are called repeating units. Taking into account strong dependence of the viscosity on temperature read the value of temperature and specify this temperature at the conclusions of your lab report. For fluids, it basically refers to how thick a fluid is. Viscosity measurement includes three virtual experiments. Viscosity is a measure of the resistance of a fluid which is being deformed by either shear stress or tensile stress. When you enter the lab, switch on the exhaust fan and make sure that all the chemicals and reagents required for the experiment are available. Clear liquid above has lower viscosity than the substance below. Viscosity will also be explained through the intermolecular forces present in the fluids. In this experiment, viscosity of different fluids will be tested and measured. Introduction the density of a substance is the ratio of its mass to its volume. View lab report viscosity lab report from ce 320 at new jersey institute of technology.
The resulting data from these experiments demonstrated that the method is feasible. By the end of the experiment, youll understand the relationship between viscosity and velocity and learn the relative viscosity of. Viscosity races investigating the flow of liquids experiment. In this experiment, we will drop spherical balls of clay into three fluids and calculate the. In everyday terms and for fluids only, viscosity is thickness.
The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. Viscosity of liquids introduction this experiment focuses on measurements of different trials of various concentrations. Handbooks commonly quote viscosity in centipoise 1 cp 0. It is commonly perceived as flow behaviour or resistance to pouring. Viscosity tells us the resistance of a fluid on which a force is acting. A weight, w, is used to drive a rotor that is partially submerged in a sample of liquid. A single polymer molecule may consist of hundreds to a million monomers. This paper describes measurement of fluid viscosity using a small ball drop device. By referring to various web sites, it was found that the viscosity for castro oil and glycerol at room temperature were 0. Determination of viscosity of organic solvents theory. Viscosity is a measure of the resistance of a fluid to deform under shear stress. The experiment is a simple way to explain and measure the viscosity of a liquid. Laboratory experiments experiment no 2 density and.
Full report viscousity of viscous fluids free download as word doc. All the content of this paper is her own research and point of view on viscosity of water lab report and can be used only as an alternative perspective emma other papers. To learn more about viscosity, how it varies relative to temperature, and to demonstrate one method of how it is measured. Lab 1 viscosity lab report thermodynamics and fluids. Experiment v viscosity of oil by the rotating cylinder method. Marvin institute for basic standards, national bureau of standards, washington, d. Viscosity describes a fluids internal resistance to flow and may be thought of as a measure of. In this experiment we will use stokes law and the concept of terminal velocity to determine the viscosity of glycerin. Viscosity measurement using ostwalds viscometer amrita. If you had written f c v2 a and calculated the proportionality constant c from your data, you would have found a value quite close to the density of air. Generally speaking the viscosity of a fluid increases only weakly with pressure white, 2003. Abstract this report is intended to explain an experiment performed to determine the viscosity of butcher oil as a function of temperature and to determine weather the oil was a newtonian or nonnewtonian fluid. Laboratory experiments experiment no 2 density and specific weight estimation for the liquids and solid materials. Repeat the experiment and record the results take average of results.
The experiment is designed to yield reliable viscosity values by operating at. We used a rotating disc spindle viscometer to measure the viscosity. O obtain data and use it to calculate values of other quantities data reduction o make graphs of observed and calculated data obtained in the lab. This allows the way that viscosity depends on temperature to be described by the andrade equation. Experiment v viscosity of oil by the rotating cylinder. Doc lab report fluid characteristics nur afidahsari. Thick liquid is said to be more viscous than a thin liquid of the road. Thus, water is thin, having a lower viscosity, while honey is thick, having a higher viscosity. Because impurities will alter a compounds physical properties, measurements close to the known values indicate that the substance is of high purity.
Kinematic viscosity is the dynamic viscosity divided by the density typical units m2s, stokes, st. To quantify viscosity, we will imagine our bulk fluid as. Determine the absolute viscosity of organic liquids. Fluids, viscosity, and stokes law instructional physics lab. Supplies needed 4 clear glass jars of the same size we used pint sized mason jars 4 marbles read more. Dynamic viscosity, also absolute viscosity, the more usual one typical units pas, poise, p.
Fluids lab 1 fall 2003 viscosity objectives of the experiment. To determine the kinematic viscosity of four grades of motor oil at various temperatures using a saybolt viscometer. Theory, es timation, experiment, and data springer, dordrecht. Measurements are made in an experiment involving an aqueous solution of glycerine. A single polymer molecule may consist of hundreds to a million monomers and may have a linear, branched, or network structure. If you have not yet encountered the concept of viscosity in your studies, do read the. Chem355 experiment 6 viscosity of high polymer solutions. For accuracy, have students repeat the experiment and calculate an average viscosity. Viscosity is a thermodynamic variable varying as a function of pressure and temperature. P1 determination of the viscosity of oil the university of. The ostwald viscometer is a useful laboratory equipment to measure the viscosities of many binary solutions. The viscosity of the solution can also be determined with this method. Full report viscousity of viscous fluids viscosity sphere. The accuracy of measurements of viscosity of liquids.
Macdonald, physics 2nd edition, copies available at the resource centre j. Experiment procedure e the time it takes a sphere to measur fall through an aqueous solution of glycerine as a function of temperature. Mar 27, 2014 this report discusses the methods with which the viscosity of liquid glycerin is determined, and uses the data to validate stokes law. All the content of this paper is her own research and point of view on viscosity of water lab report and can be used only as an alternative perspective. In this experiment, the fundamental physics behind the falling ball viscometer were used to determine its accuracy. The viscosity of liquid is a resistance to flow of a liquid. Weve already seen and studied this kind of drag in the coffee. Comments extra information on viscosity experiment. One of the experiments did not provide sufficient data for analysis. Measurement of the viscosity of a fluid using a sphere viscometer.
In the mks system the unit of viscosity is nsm2 whereas in the cgs system the unit of viscosity is the poise 1 poise 1dyneseccm2. These ways included using a measuring beaker, eureka can, and density bottle. Do not remove the densitometer from the cylinder with a particular liquid. For this experiment, we are going to test how marbles behave differently based on the type of liquid they are dropped into.
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