1.5. Introduction to Viscous Fluid Flow

Try these first

1. 1.

   Define viscosity in simple terms.

   Hint

   Think about how thick or thin a syrup is compared to water.

2. 2.

   List the two categories of liquid properties discussed.

   Hint

   Remember, one relates to motion and the other to physical characteristics.

3. 3.

   What defines a fluid?

   • A solid object
   • A substance that deforms continuously under shear
   • A rigid body

   Hint

   Think about how a solid behaves differently under pressure.

4. 4.

   True or False: Viscosity is a measure of a fluid's density.

   • True
   • False

   Hint

   Consider how easily a fluid flows.

5. 5.

   A fluid is flowing through a pipe with varying diameters. Analyze how the properties of viscosity and shear would affect the flow rate.

   Hint

   Consider the pipe's diametric changes on fluid flow.

6. 6.

   Given a fluid property Q varying spatially and temporally, derive its material derivative in an example scenario.

   Hint

   Focus on how each term influences the overall change in Q.