It has to flow in opposite directions to keep a balanced concentration therefore a balanced diffusion. If it went in the same direction as the blood there would be less diffusion as, for instance, by the time the dialysis fluid from the right side got the the left, no more diffusion could take place with the blood above it as the fluid would already have gone though diffusion with blood further back down the right end so particles would not move from a high concentration to a low concentration as the fluid below would have a high concentration too from what it gained back at the right end.
opposite flow
The opposite of fluidity is viscosity, which refers to the resistance of a fluid to flow. High viscosity fluids are thicker and flow more slowly, while low viscosity fluids flow more easily.
river watershed
Narmada river
These terms are usually used in conjuction with fluid-fluid heat exchangers. In both cases, the two fluids in the exchanger are moving in parallel flowpaths with each other. In contraflow, the fluids move in opposite directions along those paths, so the two inlets are on opposite ends of the exchanger. In parallel flow, the fluids move in the same direction, so the inlets are on the same end.
Gas outflows often in two opposite directions because of stars magnetic field.
the directions are opposite to each other
the directions are opposite to each other
during dialysis the blood is is flowin through a closed system
I think dialysis
A subterranean river passage can have water flowing in opposite directions due to complex geological formations and varying water sources. This phenomenon can occur when multiple water sources enter the passage at different points, leading to the flow of water in opposite directions within the underground system. Changes in elevation, pressure, and underground water currents can also contribute to this unique flow pattern.
Anthony count Alternating Current - electrons that flow alternately in opposite directions constitute an Alternating current.