Lecture 2 Flashcards

1
Q

Give Newton’s Friction law.

What do the symbols mean?

A
  • η = Proportionality Constant*
  • A = Area of sheet*
  • v = Velocity*
  • y = Fluid layer thickness*
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2
Q

As temperature rises, gases become…

A

More viscous

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3
Q

Give Poiseuille’s Law

A

Q = Flow Rate

P = Pressure

r = Radius of tube

η = Fluid viscosity

l = Length of tubing

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4
Q

Give the Parabolic Velocity Profile

A
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5
Q

Formula to calculate the force needed to maintain flow of a fluid in a tube.

A
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6
Q

Formula to calculate the power needed to maintain flow of a fluid in a tube.

A
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7
Q

What is represented in this part of the graph?

A

Turbulent Flow

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8
Q

What is shown in this half of the graph?

A

Laminar Flow

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9
Q

What is the Reynolds number used to determine?

A

If a flow is laminar or turbulent

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10
Q

Give the formula to calculate the Reynolds number.

A
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11
Q

What is defined as laminar and turbulent flow in terms of the Reynolds number values.

A

NR < 2000: Laminar

NR >3000: Turbulent

NR between 2000 - 3000: Instabil

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12
Q

Which noise is heard when taking blood pressure?

A

The Korotokoff Noise

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13
Q

Give the formula for flow resistance (With P and Q)

A
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14
Q

Give the formula to calculate flow resistance of where tubes are connected in parallel.

A
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15
Q

Give the formula to calculate flow resistance of where tubes are connected in series.

A
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16
Q

Give Stoke’s law on viscous drag force.

A

When acting on a sphere of radius R

17
Q

Give the formula for flow resistance (With area of the tube)

A
18
Q

Calculate the tension in the wall of a capillary

A
19
Q

What are considered to be Newtonian fluids in the body?

A

Air and water