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Formula and Meaning of CpT

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Old   August 3, 2023, 16:17
Default Formula and Meaning of CpT
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Heath Springman
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I'm to some types of visulizations in CFD, particularly those using CpT (total coefficient of pressure). It's been explained to me as a representation of the energy in flow. To my understanding it has a maximum value of 1 (meaning the maximum energy in the domain or on the plot), but i've seen the value be negative, which is confusing me.

Can anyone correct my understanding and/or explain how the value can be negative? If you know/can provide the formula that would be much appreciated as well.

Thanks!
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Old   August 3, 2023, 17:22
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Filippo Maria Denaro
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Quote:
Originally Posted by candybar99 View Post
I'm to some types of visulizations in CFD, particularly those using CpT (total coefficient of pressure). It's been explained to me as a representation of the energy in flow. To my understanding it has a maximum value of 1 (meaning the maximum energy in the domain or on the plot), but i've seen the value be negative, which is confusing me.

Can anyone correct my understanding and/or explain how the value can be negative? If you know/can provide the formula that would be much appreciated as well.

Thanks!



This is a topic you can find in a basic aerodynamics course. Use some good textbook.


https://en.wikipedia.org/wiki/Pressure_coefficient
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