# Civil Engineering - Hydraulics - Discussion

### Discussion :: Hydraulics - Section 1 (Q.No.3)

3.

The property of steam function ψ is :

 [A]. ψ is constant everwhere on any stream line [B]. the flow around any path in the fluid is zero for continuous flow [C]. the rate of change of ψ with distance in an arbitrary direction, is proportional to the component of velocity normal to that direction [D]. the velocity vector may be found by differentiating the stream function [E]. all the above.

Explanation:

No answer description available for this question.

 Makar said: (Apr 27, 2017) Steam function means? Explain in detail.

 Kasturi said: (Oct 28, 2017) Please explain the details.

 Akhila said: (Mar 22, 2018) It is a scalar function of space and time such that its partial derivative with respect to any direction gives the velocity component at right angles to this direction.

 Akash said: (Jun 21, 2018) The flow velocity components can be expressed as the derivatives of the scalar stream function. The stream function can be used to plot streamlines, which represent the trajectories of particles in a steady flow. The two-dimensional Lagrange stream function was introduced by Joseph Louis Lagrange in 1781.

 Soumya said: (May 17, 2020) What is the steam function?