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## Main Question or Discussion Point

What is the relation between the pressure that is exerted on the internal walls of a cylinder and the characteristics of a flow of water running inside it?

Let's assume that the flow velocity is constant and that we have an inviscid flow of pipe flow type. Furthermore lets assume that the flow is laminar.

From what I know, the pressure in a flow is described both by its static pressure (ρ*g*h) and its dynamic pressure (0.5*ρ*v^2).

But how are these two pressure variables related to the pressure exerted on the internal wall of the cylinder containing the flow?

Dynamic pressure is supposed to act only in the direction parallel to the flow direction, does this mean that the dynamic pressure does not affect the pressure exerted on the cylinder wall?

I have been scratching my head about this problem for ages now and thought it was time to bring it to the experts.

I hope my question is clear enough and that some bright person out there can point me in the right direction! =)

/M

Let's assume that the flow velocity is constant and that we have an inviscid flow of pipe flow type. Furthermore lets assume that the flow is laminar.

From what I know, the pressure in a flow is described both by its static pressure (ρ*g*h) and its dynamic pressure (0.5*ρ*v^2).

But how are these two pressure variables related to the pressure exerted on the internal wall of the cylinder containing the flow?

Dynamic pressure is supposed to act only in the direction parallel to the flow direction, does this mean that the dynamic pressure does not affect the pressure exerted on the cylinder wall?

I have been scratching my head about this problem for ages now and thought it was time to bring it to the experts.

I hope my question is clear enough and that some bright person out there can point me in the right direction! =)

/M