Internal flow occurs when a fluid is enclosed by a solid boundary such when flowing through a pipe.

The fluid velocity at all fluid-solid boundaries is equal to that of the solid boundary.

Like stained glass windows, but without the glass, these luminous panels decompose the walls' solid boundaries.

She wanted to return to the solid boundaries of the ship.

Yet it is also one more sign of the profound blurring of the once solid boundary between work and home.

The ideas developed so far provide a very incomplete story when the flow is adjacent to a solid boundary.

However, certain problems such as those involving solid boundaries, may require that the viscosity be included.

Initially the impression is isolated by framing the area with a solid boundary.

Also vortex lines and tubes must appear as a closed loop, extend to infinity or start/end at solid boundaries.

Such versatility has helped break down the formerly solid boundaries of dance.