# Determine the center of pressure

Submitted by F1_Fan on May 23, 2013 - 08:10

Hi,

I have to calculate the aerodynamics of a small formula racing car. Aspecially I want to design a diffusor for this car. My problem is, that I can't find a function in Caedium to determine the Center of Pressure for my downforce. Does a function exist which can show me the location of the CoP?

Thanks for helping me,

Greetings F1_Fan

## Center of Pressure

Assuming you define center of pressure as the average position of the pressure acting on your car then you need to create a new result:

cp = Sum(XYZ x p x A) / Sum(p x A)where:

Vector Fields->XYZlocationScalar Fields->ppressureScalar Fields->AareaFor a tutorial on creating new results see "Fluid Flow Around a Sphere: Theory Comparison".

Edit:Corrected for just pressure