They appear to be thick or viscous but they can be pumped quite easily. Those fluids which reduce their viscosity, when agitation or pressure is increased, keeping temperature constant, are known as Shear Thinning Fluids or Thixotropic Fluids. Most common liquids and gases are Newtonian fluids, such as water, oil and air. Types Of Fluid Newtonian Fluidsįluids in which shearing stress is linearly related to rate of shearing strain are called Newtonian fluids or true liquids, since agitation or pumping at constant temperature does not affect their viscosity or consistency. The kinematic viscosity of a liquid usually decreases with increase in temperature whereas the kinematic viscosity of a gas increases. The kinematic viscosity is highly dependent on temperature. Usually a thin liquid like water has less viscosity as compared to a thick fluid like honey having high viscosity. It can be thought of as fluid friction or internal resistance of a fluid to flow, and specifically the kinematic viscosity measures the resistance to flow of a fluid under the influence of gravity (or some other body force acting on the mass of the fluid). In general it is the "thickness" of a fluid. Find the pressure head and kinetic head per unit weight of water at a cross section.The resistance of a fluid that is being deformed from shear stress or extensional stress is called viscosity.
Water is flowing through a pipe of 5cm diameter under a pressure of 29.43N/cm2 (gauge) with mean velocity of 2m/s. 
Find the discharge through the pipe if the velocity of water flowing through the pipe at section 1 is 5m/s.
The Areas of a pipe at section 1 and 2 are 0.007854m2 and 0.017m2. 
A property of fluids that allows a water strider to walk on water. When you increase your depth under water, the water pressure on your body. Rank them according to the pressure exerted by the water on the vessel bottoms, least to greatest. The vessels shown above all contain water to the same height. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will Two fluids are flowing through two similar pipes of the same diameter. (III) The continuity equation.(IV) Velocity of boundary layer must be zero relative to boundary.(V) Fluid cannot penetrate a boundary. Which of the following must be followed by the flow of a fluid (real or ideal)? (I) Newton's law of viscosity.(II) Newton's second law of motion. The velocity gradient at the point is 0.15 s-1. The shear stress at a point in a liquid is found to be 0.03 N/m2. Which Force is equal to the product of shear stress due to viscosity and surface area of the flow?. Increasing the temperature decreases the viscosity of a. The value of the viscosity of an ideal fluid is. The correct statement about the viscosity of gases. Newton's law of viscosity state that shear stress is directly proportional to. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062. A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. Calculate the discharge through the venturimeter which is used to measure the flow of water if the area at inlet and throat are 706.85 cm2 and 176.7cm2 and difference of pressure head is 252m of water. A stream function is given by Ψ=5x-6y, Calculate the velocity components u and v in units/sec?. Which one of the following is not a unit of dynamic viscosity?. Give the dimensions of the following,i) power ii)kinematic viscosity. Which of the following is the dimension of kinematic viscosity?.
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