Gaseous hydrogen tank model

Tank position option

The gaseous hydrogen tank model has four possible installation position:

wing_pod : Tank installed under the wing with user specified position.

underbelly : Tank installed under and outside the fuselage.

in_the_cabin : Tank installed at the middle section inside the fuselage.

in_the_back : Tank installed at the rear section inside the fuselage.

Multiple tank option

This option is activated by changing the “number_of_tank” variable in the input file. Please note it will only be used for in-fuselage installation, as indicated in the assumptions.

n	Tank outer diameter compared to single tank case
1	1
2	\(\frac{1}{2}\)
3	\(\frac{1}{1 + \frac{2}{3}\sqrt{3}}\)
4	\(\frac{1}{1 + \sqrt{2}}\)
5	\(\frac{1}{1 + \sqrt{2(1+1/\sqrt{5})}}\)
6	\(\frac{1}{3}\)
7	\(\frac{1}{3}\)
8	\(\frac{1}{1 + \csc(\pi/7)}\)
9	\(\frac{1}{1 + \sqrt{2(2+\sqrt{2})}}\)

This table indicates the maximum diameter of tanks located inside the fuselage as given by [Kra67].