Recent content by Bramle

Slider... Buoyancy factors are useful, as long as they are applied to the entire submerged body. They will definitely not work for that seal bore receptacle problem. You are definitely right in your summation approach, and the cow-herders need to define what they mean by "buoyancy". You...

Sorry folks... I thought the first message had got lost...I had to write it again, not realising that it had posted.

It must be remembered that when he got into the bath that day, Archimedes did not stick his feet down the plug-hole and put a seal around his ankles. If he had, he would NOT have experienced an upthrust equal to the weight of fluid displaced. There would have been upthrusts, yes, but the sum...

If your pipe has no upsets, and is truly flush, and vertical, you could stab that pipe into the seal bore, evacuate the inside and fill the outside with liquid mercury and still see no change to the force at surface necessary to support it. The fluid cannot get an upward lift on that pipe no...

Slider... I am in the same field... oilwell casing, and the desk is strewn with the stuff. Archimedes is right if the immersed body is wetted on all of the immersed surfaces. The integration theory is always right... always, always!... but man it can take time. You are stabbing the...

Radou... Thanks. I take it that it does not have a position vector associated with it.

I am new to the forum... thanks for your help. I have a moment problem that I am struggling with. I have an oil-well, that is modeled as a series of joined-up circular arcs. The arcs are not all in one plane, as the well twists and turns. Using vector theory and theory of planes, I have...