- **Main CFD Forum**
(*http://www.cfd-online.com/Forums/main/*)

- - **Drag formulation
**
(*http://www.cfd-online.com/Forums/main/4515-drag-formulation.html*)

Drag formulation
Hi,
I'm a french student in aeronautical and mechanical :engineering. I send you this mail in order to catch :help from you. :I would like to use a minimization method in order to :minimize the effect of drag on the hull of a :yacht.(like Gradient method underconstrained). :In deed, logically, Drag (or drag coefficient) is a :function of the hull geometry variables :(like: D(x,y,z)). :So if I minimize the drag, i have to found an :optimizated geometry (of the hull). :But the problem is that i only found very simple :formulas of drag and drag coefficient (like: :D(S)=0.5*rho*V^2*S*Cd ,where all terms are :scalars!!!so i :can not minimize a scalar with scalars!!?) : :Do you know relation which connects the Drag form (or :the coefficient Drag) with the geometry parameters of :the profil(the hull)? : :I hope that it was clear enough... :I really thank you for your help. :Regards, Remy. |

All times are GMT -4. The time now is 11:26. |