# PRES Type

- F(x)
- Function
- ${V}_{0}$
- Initial volume

No external pressure is defined.

Only the load curve number is needed as specific input.

With this type the pressure is defined versus relative volume with a tabulated
function:(1)

$$P=F\left(\frac{{V}_{0}}{V}\right)$$

Where,

- F(x)
- Function
- ${V}_{0}$
- Initial volume

No external pressure is defined.

Only the load curve number is needed as specific input.