AviationBanter - View Single Post - The Impossibility of Flying Heavy Aircraft Without Training

Matt Whiting

wrote:
Matt Whiting wrote:

wrote:

A fluid can transmit force without flow in the conventional sense.
That is the basis for hydraulics.

I guess it depends on what you mean by "conventional sense."

Nothing can transmit a force without some deflection. Some molecules in
the fluid have to move in order to generate a force and typically
movement of a fluid, however minute, is flow.

One does not generally refer to compression as flow.

A fluid can transmit force without molecules flowing from the
point of origin to the point of application.

True, but most hydraulic systems of any usefulness require the fluid to
flow to some degree. I hydraulic system that simply statically supports
a load isn't a very interesting system and could easily be done without
using a fluid and for much less money. :-)

Matt