Find the pressure field inside a partially filled half sphere

Question

Consider a half sphere of radius $R$, partially filled with an incompressible liquid with a density $\rho$, up to a height $h.$ I'd like to find the pressure field inside the liquid.

For $| x | \leqslant x_l$, it's easy: indeed, we know that $P(x,h)=P_0$, and moreover $\frac{\textrm{d}P}{\textrm{d}z} = -\rho g$, so

$$ P(x,z) = P_0 + \rho g (h - z)$$

Also, when $\theta_l \ll 1$, $x_l \approx R$, so $P$ should not vary too much between $x_l$ and $R$: for any $x$, $$ P(x,z) \approx P_0 + \rho g (h-z)$$

However, in general cases, I really don't know how we could find the pressure field for $|x| > x_l$. The equation $\frac{\textrm{d}P}{\textrm{d}z} = -\rho g$ is still true, yet I can't achieve to find the pressure next to side of the half sphere: how could we find it ?

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Edit:

JezuzStarusst's answer is valid away from the side of the sphere, since there's no horizontal force acting on the fluid. However, near the side, surface tension appears. How could we take it into account ?

Answer 1

I believe that the pressure must be the same at a given height $z$, since otherwise there would be a flow in one direction or the other.

At $|x|> x_l$ the height of the fluid is less, but there is a compensating normal force from the containing vessel.