Investigating Viscosity Aim --- To investigate how the temperature of a fluid affects its viscosity. Method ------ Apparatus Required ------------------ * Water bath * Thermometer * Measuring cylinder * Steel ball bearing * Micrometer * Balance * Honey (100cm3) * Stopwatch * Ruler Plan ---- * Measure the radius of the ball bearing and also find its weight. * Find the mass of the honey. Weighing an empty measuring cylinder and then the same
Binder viscosity was altered by changing temperature. The initial dispersion of the binder in the powder depends upon viscosity and shear rate applied. (Schaefer, 1996) Binder viscosity also controls the consolidation rate and hence subsequent growth via coalescence. (Ennis, et al., 1991). Results from Rough et al (2005) showed that increased temperature (lower viscosity), the regimes are reached faster because the binder is able to distribute more effectively in the mixture at a given shear rate
Newton’s Law of viscosity Viscosity is the property of a fluid which offers resistance due to the movement of one layer of fluid over another adjacent layer of fluid. The top layer causes a shear stress on the adjacent lower layer while the lower layer causes a shear stress on the adjacent top layer. So the viscosity is a measure of the internal fluid friction which causes resistance to flow. It is primarily due to cohesion and molecular momentum exchange between fluid layers and as flow occurs
Measuring Viscosity Aim - to determine how the mass of Corn flour added to 100ml of water affects the viscosity (gooeyness) of the final mixture. Background - Corn flour, when added to water increases its gooeyness of viscosity. Although this value cannot be actually measured, a person can determine a rough value of its viscosity by recording how long an amount of the mixture takes to flow from one receptacle to another. The longer it takes to flow, the more viscous the mixture. The
Chapter Two Theory 2.1 Viscosity Viscosity is the tendency of a fluid to resist flow and can be thought of as the internal friction of a fluid. Microscopically, viscosity is related to molecular diffusion and depends on the interactions between molecules or, in complex fluids, larger-scale flow units. The opposite of the viscosity is the fluidity which measures the mobility for fluid layers (Secco et al, 2013). Viscosity is affected by the temperature and composition of the fluid and, for compressible
Measuring the Viscosity of a Liquid Aim The aim of this experiment is to find out how fluid Bath Oils really are by measuring its viscosity. Plan The first thing that I'll do is to measure the spheres volume by first measuring its radius. I will then, by calculating the spheres mass, be able to calculate the density of the sphere. This will be used later when calculating the viscosity of the bath oil. I will then find the density of the bath oil, also used during calculations later
six honey samples adulterated with different concentrations of jaggery syrup were determined. The viscosity of these samples was measured using rotational rheometer with parallel plate geometry. Different modes and parameters were chosen to measure rheological properties i.e. at constant stress, temperature gradient, shear rate ramp with varying shear rate and oscillatory measurements. The viscosity of the honey samples along with the adulterated samples was determined as a function of temperature
The shear viscosity is a transport coefficient for momentum in inhomogeneous flows. This transport coefficient, which is widely used to describe both plasmas and fluids, relates two hydrodynamic quantities: shear stress and shear rate. The shear stress Pxy is the off-diagonal element of a pressure tensor, and the shear rate γ is the transverse gradient of the flow velocity u. For a flow in the y direction, γ=∂uy∂x. (1)The shear viscosity η relates these two hydrodynamic quantities through the constitutive
one and two. Viscosity is a measure of a fluid’s resistance to flow. An example of this being the comparison between honey and water; flowing honey through a pipe is a slower process then repeating the same process with water this indicates honey has a higher viscosity level compared with water. Viscous properties tend to steady and organise the flow of a fluid however excessive fluid inertia tends to unsettle flow leading to more disordered turbulent behaviour. Kinematic viscosity is a dimensionless
EXPERIMENT NO. 8 AIM: Determination of Viscosity of Lubricating oil at different temperatures by Redwood Viscometer No.1 or 2 THEORY: Viscosity is one of the most important properties of lubricating oil. The formation of a constant fluid film of a lubricating between the moving surface under particular condition of load, speed and lubricant supply is depend upon the viscosity of lubricating oil. If the viscosity of the oil is too low the fluid lubricant film cannot be maintained between the moving
Drama Monologue Velocity vs. Viscosity Insanity comes in two basic varieties: slow and fast. I'm not talking about onset or duration. I mean the quality of the insanity. The day to day business of being a head case. There are lots of names I guess: depression, catatonia, mania, anxiety, agitation. They don't really tell you much though do they? The predominant quality of the slow form in viscosity. Experience is thick. Perceptions are thickened and dulled. Time is slow, dripping
What factors affect the viscosity of a fluid? Research question: How does the temperature of corn syrup affect the viscosity of the fluid? Research hypothesis: Increasing the temperature of corn syrup decreases its viscosity. Independent variable: The viscosity of the corn syrup, measured in seconds it takes for an iron ball to move downwards in the fluid. Dependent variable: The temperature of the corn syrup in degrees (Celsius). Controlled variables: • Volume of corn syrup used in each
Water and all forms of water travel have long fascinated man. With his fascination and the realization that humans are ill-suited for water travel that doesn't involve remaining on the surface, an appreciation for a fish's ability to move in three dimensions with relative ease was also devloped. Although we may not fully understand the physics involved how fish swim, it is obvious from the fascination and the breadth of reseach that it will remain a goal of the modern sicientist. A fish's ability
Viscosity In layman's terms viscosity is a fluids resistance to flow and is important in many volcanic processes. Viscosity is defined as the internal resistance to flow by a substance when a shear stress is applied. Many factors affect a magma's viscosity. Temperature is one of them, as a with all fluids as a the temperature increases the viscosity also increases. This example can be seen when examining a rhyolitic melt, when the temperature decreases from 1300°C to 600°C the viscosity increases
Darcy's coefficients and . The statically stable situation was considered, so the upper fluid is assumed the lighter (vapor) while the lower one is assumed to be the heaver (liquid). The two fluids are incompressible and have uniform densities and viscosities for the liquid and for the vapor. The interface between the two fluids is assumed to be well defined and is initially flat to form the plane y = 0. Also, we consider that the two fluids are streaming with uniform horizontal velocities and
E3: The Melt Flow Rate of Different Polymeric Materials Objectives: 1) To learn the operating procedure of TWELVindex 2) To determine the melt flow rate of different polymeric materials Introduction: Melt flow index is given by the weight of the extrudate in gram per 10 min [1]. Referring to Figure 1.1, the melt flow index measured according to Condition-E (190°C, 2160g) which is the normal condition for polyethylene is called “Melt Index (MI)”. Polypropylene requires Condition-L (230°C, 2160g) because
observable parameter controlled by the mechanics of the material. And develop a relationship between the internal structure change and the applied external force or the structural and compositional change after the deformation is over. Newton’s law of viscosity It state that, when a shear stress is applied to a fluid, the velocity that it yields in the direction perpendicular to the stress is proportional to the applied stress. Those liquid obeys newton’s law of
With increasing temperature the viscosity of the material is reduced and hence the material flows and the size of the neck is increased. At some point, the necks are sufficiently large and strong enough to cause defluidization. The second type occurs when a large quantity of liquid is formed by melting or by chemical reaction. With an increase in temperature, a phase boundary may be crossed bring about rapid defluidization. The liquid formed has a relatively low viscosity and defluidization is caused
the following components are essential to operate a Marine engine running on Heavy fuel oil or Diesel oil. They are: 1. Storage tank 2. Settling tank 3. Heating Equipment 4. Heavy Fuel Oil Pumps 5. Filters and Centrifugal purification systems 6. Viscosity and flow regulator 7. Temperature and Pressure control systems 8. Supply tanks 9. Fuel injector First, the loaded fuel is stored in the storage tank which is mostly situated in the Double bottom of the ship’s hull. If the double bottom is not sufficient
of a fluid increases, the flow will decrease. One example of this is gravy and milk. Gravy has a greater resistance than milk and will take longer to flow out of a pitcher. The same can be said about respiratory therapy equipment. An increase in viscosity will decrease the flow. When Jean Poiseuille was creating his experiments, he used the circulation of blood through the body to explain his findings. Respiratory therapists must understand Poiseuille’s law of flow because blood vessels in the lungs