1. Types of Flow & Flow Rate
Fluids
Types of Flow & Flow Rate

2. Types of Flow Laminar Flow:
Remember, fluids have no fixed shape and are free to flow. There are 2 types of flow:
Laminar Flow:
A smooth pattern of flow. Fluids move in orderly lines or along smooth pathways.
Allows fluids to move quickly with more energy

3. Types of Flow Turbulent Flow: An irregular, mixing flow pattern.
Different currents and pathways of fluids.

4. Types of Flow Watch the videos and complete the following: Videos
Identify laminar flow and turbulent flow
Real-life applications – How does an understanding of laminar and turbulent flow help us in real life situations?
Provide examples of laminar and turbulent flow with liquids.
Videos
Wind Tunnel - Chevy Cruze
UPS Commercial
Xerox Commercial

5. Flow Rate Flow Rate: A measure of how quickly fluids move.
Measured in a volume per unit of time (for example, L/s).

6. Flow Rate: Class Demo As Mr. Sebichon pours various liquids
down a slope …
A volunteer will be in charge of the
timer for each of the fluids.
Observe the characteristics of each
fluid and determine why the different
fluids flow at a different rate.
Another volunteer will be asked to
describe the texture of each liquid.
Write your quantitative and qualitative
observations in your chart.
Analysis:
Why do certain liquids have different flow rates?
Other than the liquid itself, can you think of any other reasons why the flow rate would be affected?

7. Flow Rate: Class Demo (8A)
Fluid
Race Length
(cm)
Time for Fluid to Reach Finish (s)
Flow Rate (cm/s)
Thickness/
Stickiness Rating (1-4)
Water
100
0.9sec
111.1cm/s 1
Dish Soap
37.4sec
2.7cm/sec 2
Ketchup
503sec
0.2cm/sec 3
Analysis:
Why do certain liquids have different flow rates?
Other than the liquid itself, can you think of any other reasons why the flow rate would be affected?

8. Time for Fluid to Reach Finish (s)
Flow Rate: Class Demo
Fluid
Race Length
(cm)
Time for Fluid to Reach Finish (s)
Flow Rate (cm/s)
Thickness/
Stickiness Rating (1-4)
Water
100 1
100cm/s
Dish Soap 33
3cm/s
2.5
Ketchup
1161
0.09cm/s
3.5

9. Flow Rate Thickness of fluid Texture of surface
Flow rate depends on several factors:
Thickness of fluid
Texture of surface
Volume/mass/density of fluid
Possible fluid age factors
Gravity
Temperature
External forces being applied