Skip to content

Re: airfoil in OpenLB


Hi balzar29,

the Indicator is a functor which is called at another point in the library, when the material numbers are set.
In the
the functor is initialized, here is the place to hand in parameters required for the desired equation.
The indicator return for coordinates, whether this coordinates are inside or outside the object. This is done in
bool IndicatorCircle2D<S>::operator()
This is the place to implement the equation describing the airfoil. “input” is the physical coordinate (input[0] for x-coordinate and input[1] for y-coordinate) which needs to be checked. “output[0]” is a boolean value that is returned. “true” or “1” if the point is inside the airfoil and “false” or “0” if the point is outside the airfoil.