Recent content by Sir James

Thanks for the responses Verty, HallsofIvy and Paulfr

Hello, I'm getting slightly confused by the following so was hoping someone may be able to clear my problem up. For integrals, if b is the upper limit and a is the lower limit, I will write ∫[b,a]. From the Fundamental Theorem of calculus part 1 we can show that: if F(x) = ∫[x,a]...

Much appreciated Chet, I was going wrong by not looking at the hydraulic gradient as a vector. This meant I didn't understand why the length L was sometimes measured horizontally, sometimes vertically or sometimes in the direction of flow. I now see that this just depends on the direction of the...

In that case Chestermiller I do have another question. I am trying to get my head around the equation for the velocity of flow through a soil. The equation is: V = Ki Where: V = velocity K = Darcy coefficient of permeability i = Hydraulic Gradient = (head at point 1-head at point 0/horizontal...

Tiny-Tim and Chestermiller thanks very much, your answers have helped me to clear up what I was confused over. I'm looking at this in relation to permeability values of soil so need to get it right before I bring in the Darcy Coefficient.

Hello Tiny Tim, thanks very much. I'm still a little lost with this one though. In Understanding Hydraulics (Hamill, 2011) it states that the pressure energy per unit weight of a fluid is equal to the height of the head. Then total energy indicated by a head is: head * weight which can also...

I’m confused as to how energy per unit weight can be quantified as a head of fluid. I have tried to understand this from a couple of angles but am getting confused. I’ll go through my methodology to see where you can spot the cracks. If energy = work done = (force * length over which it acts)...