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how to find pressure coefficient and drag coefficient

Question asked by Yohan Prasetya on Feb 11, 2015
Latest reply on Feb 25, 2015 by Jared Conway

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Can you help me, for teach how to look for the pressure coefficient, drag coefficient and lift coefficient ??

I use an external flow in circular cylinder with a diameter of 100mm. and I use a 2D computational domain.

please note I use the Re 1 x 10 ^ 3 and 10 ^ 6

I want to find a graph Cp (pressure coefficient), Cd and Cl

I found a picture of several journals, and I want to make a chart of CP, Cd, and Cl as the graphic images, here I include graphics ....

I am very grateful for the support of teaching for me

Attachments

Preview velocity (x) Re 10^3.bmp567.5 KB
Cl, Cd Fluent Jurnal 2.jpg83.7 KB
Cp Fluent jurnal 2.jpg54.7 KB
Cp Fluent.jpg114.6 KB
Cd Solidwork (toukir Islam).jpg62.9 KB
Cp Solidwork (toukir Islam).jpg42.7 KB

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Jared Conway Feb 13, 2015 1:35 PM

where are you getting hung up?

this is covered in the tutorials and verification problems

you can create an equation goal to output the information and then use a parametric sweep to actually run through the tests

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Yohan Prasetya @ Jared Conway on Feb 25, 2015 4:55 AM

I get a picture of pressure coefficient of the journal made by Islamic toukir

I want to know is how I found the CP (pressure coefficient) corresponding

I have found the goal drag force and lift force, static pressure, velocity.

but to find the CP, I still find it difficult, if you can help show the steps to find the CP and the graph of x, y plot of Cp than the angle as shown in the picture ....

I am very grateful for the help ...

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Jared Conway @ Yohan Prasetya on Feb 25, 2015 11:52 AM

can't you use the equation here? Pressure coefficient - Wikipedia, the free encyclopedia

and then run simulations modifying angle of attack using a parametric study?

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3 Replies

Jared Conway Feb 13, 2015 1:35 PM
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Correct Answer
where are you getting hung up?

this is covered in the tutorials and verification problems

you can create an equation goal to output the information and then use a parametric sweep to actually run through the tests
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- Yohan Prasetya @ Jared Conway on Feb 25, 2015 4:55 AM
  Mark Correct
  Correct Answer
  I get a picture of pressure coefficient of the journal made by Islamic toukir
  
  I want to know is how I found the CP (pressure coefficient) corresponding
  
  I have found the goal drag force and lift force, static pressure, velocity.
  
  but to find the CP, I still find it difficult, if you can help show the steps to find the CP and the graph of x, y plot of Cp than the angle as shown in the picture ....
  
  I am very grateful for the help ...
  Like • Show 0 Likes0
  Actions
  - Jared Conway @ Yohan Prasetya on Feb 25, 2015 11:52 AM
    Mark Correct
    Correct Answer
    can't you use the equation here? Pressure coefficient - Wikipedia, the free encyclopedia
    
    and then run simulations modifying angle of attack using a parametric study?
    Like • Show 0 Likes0
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how to find pressure coefficient and drag coefficient

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