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3 cards from this section. Quick, good the night before a test.
Define the coefficient of drag (CD).
Think about the dimensionality and significance of the term.
What is the primary purpose of minimizing drag in engineering?
Consider the effect on energy consumption and speed.
What does the coefficient of drag (CD) quantify?
Recall the context in which CD is used.
True or False: A streamlined object has a higher CD compared to a blunt object.
Think about how air flows around objects.
Evaluate the impact of different shapes on the drag coefficient of a sphere versus a cube when both are in the same fluid flow.
Consider how each shape interacts with fluid flow.
Calculate the expected drag force on a wind turbine blade with a frontal area of 5 m² at a wind speed of 15 m/s and a CD of 0.4.
Make sure to apply the correct values into the drag formula.
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