41 Cistern Program

[Gerson W. Barbosa]

(08-20-2016 05:34 AM)Gerson W. Barbosa Wrote:  Are there heads of types other than flat for such elliptical cross section tanks? Hopefully not – the calculations woud be far more complicated.

Answering my own question, yes, there are. The one in the first picture here is clearely not flat by the curved reflection of the ladder on the surface of the head. "Flat or slightly rounded ends", the specifications state. If the cross sections of both the head and the tank are elliptical, then simple exact formulas for parcial volumes are not possible, I think.