irrotational वाक्य

where and are solenoidal and irrotational projection operators satisfying 1 } } and and are the non-conservative and conservative parts of the body force.
When the forces associated with two-dimensional, incompressible, irrotational, inviscid steady flow across a body are calculated, there is no drag.
This secondary flow effect dominates over that of irrotational flow : In real meandering rivers, we observe higher downstream fluid velocities at the outside bends.
Joseph's interests included stability of fluid flow, irrotational motions of viscous and viscoelastic fluids, and direct numerical simulations of solid liquid flows.
In general relativity, a spacetime is said to be "'static "'if it does not change over time and is also irrotational.

In other words, the stream function accounts for the solenoidal part of a two-dimensional Helmholtz decomposition, while the velocity potential accounts for the irrotational part.
A closed vector field ( thought of as a 1-form ) is one whose derivative ( curl ) vanishes, and is called an irrotational vector field.
This can be seen by noting that in such a region, an irrotational vector field is conservative, and conservative vector fields have the path-independence property.
To good approximation, the flow velocity oscillations are irrotational outside the boundary layer, and potential flow theory can be applied to the oscillatory part of the motion.
It is possible for a fluid traveling in a straight line to have vorticity, and it is possible for a fluid that moves in a circle to be irrotational.