Lecture #6 Ehsan Roohi Sharif University of Technology Aerospace Engineering Department 1.
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Transcript of Lecture #6 Ehsan Roohi Sharif University of Technology Aerospace Engineering Department 1.
Lecture #6
Ehsan RoohiSharif University of Technology
Aerospace Engineering Department
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Wind Tunnel
Pressure Coefficient
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The kinetic energy per unit volume is called dynamic pressure q
The pressure energy per unit volume (due to random motion within the fluid) is the static pressure of the fluid and is given the symbol p
The constant energy per unit volume is called the total pressure pt.Bernoulli's equation reduces to
Dynamic pressure + Static pressure = Total pressure (7)
For rotational flow the total pressure pt is constant along a streamline but may vary from streamline to streamline.
HW: Read wiki page about Bernoulli equation and write a 2 pages report about different versions of this equation.
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Wind Tunnel
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Cp depends on Reynolds Number and body shape
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Boundary Conditions
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HW’sChapter 3: P. 1-7In four weeks