Add entrance diameter

[AlexKari]

Hello,

Is it possible that support for non standard entrance diameters, such as the picture attached, could be added?

[reilleya]

Hi Alex,
While I certainly could add support for truncated convergent sections, the simulator doesn't currently do anything with the parameters entered about the entrance cone apart from use them to draw the preview image. This could certainly change at some point if I find a good reference for the impact of the shape of the convergent section on nozzle efficiency, and if it does, I'll add support for this as well.