There are so many integral equations when I read the papers. From the fluent I obtained the solution without any equation being implemented. How many equations am I supposed to code? Is anyone working on this?
Fluent will give pressure and viscous drag. I suggest for your problem, you obtain the pressure and velocity fields using Fluent and then use that data to calculate drag components that you want to calculate.
I reckon you are looking to split the aerodynamic forces into individual components, i.e. pressure and viscous forces. Fluent enables that from the force window based on on the direction vectors. The attached file might help.
Although Fluent gives "pressure drag" and "viscous drag" you could also easily integrate pressure forces and wall shear stress on aerodynamic body to find the drag components in flight direction.