Types of Flow & Flow Rate Fluids Types of Flow & Flow Rate

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

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

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

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

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?

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?

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

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