FM

Question 1

What is the Knods Number useful for?

Answer 1

For telling if the continuum Model can be applied. Formula is lambbda / L where lambda is the mean free path and L is the characteristic length

Question 2

What are field variables?

Answer 2

Properties of Particles

Question 3

What is dynamic viscosity?

Answer 3

The constant of proportionality that links stress to the rate of change of deformation

Question 4

What does viscosity not depend on for Newtonian fluids?

Answer 4

Strain Rate

Question 5

What are two examples of Non-Newtonian fluids

Answer 5

Sheer thinning and sheer thickening flids

Question 6

What are the three types of flow?

Answer 6

Jet Flow, Vortex Flow, Stagnation Flow

Question 7

What describes Lagrangian Flow?

Answer 7

Properties of individual particles are followed

Question 8

What describes Eularian Flow?

Answer 8

Points in a field are observed

Question 9

What are streamlines?

Answer 9

Integrated curves of instantaneous velocity field

Question 10

What are streamtubes?

Answer 10

A material volume which is bounded by a cylindrical surface generated by stream lines?

Question 11

What is the Conda Effect?

Answer 11

When friction allows a flow to follow a contour until inertia becomes too large and causes flow seperation

Question 12

What is more important at large reynold numbers>

Answer 12

Inertia

Question 13

What is more important at small reynold numbers?

Answer 13

Friction

Question 14

What is formula for c_p

Answer 14

lambda R / Lambda -1

Question 15

What kind of reference frame is lagrangian?

Answer 15

Material

Question 16

What kind of reference frema is eularian?

Answer 16

Spatial

Question 17

What reference frame does the material derivative use ?

Answer 17

Eularian

Question 18

What parts are there in material derovative?

Answer 18

Loacal + Convective

Question 19

What are assumptions for bernoulli equation?

Answer 19

Steady , incompressible flow