When the fluid flowing in a pipe the maximum velocity occurs at?

The velocity is maximum when r = 0 i.e. at the centre of pipe.

Where does the max velocity occur in a pipe?

Fluid with in contact with solid surface will resist the motion, same effect will carry on to the upper layers. In the pipe if you think like that middle layer will be the upper most layer or the layer which is farthest from each point in the pipe. So, that layer will have maximum velocity.

Why is the maximum velocity not at the surface of a open channel flow?

Henderson, Open channel flow, 1966, pp. 88-90), maximum flow-velocity “often” occurs-not at the free-surface. This phenomenon because of formation and action of the “secondary currents” means circulating currents in the plane of the cross-section.

Does higher flow rate mean faster?

This is a very common fallacy, yes! So when we say that “fluid flows faster as the pipe gets narrower” we mean within the same pipe. We do not mean across all circumstances. The cause of the increased fluid flow is that water is a highly incompressible fluid.

Does the max velocity always occur at the water surface?

The max velocity always occur almost at the water surface. but in every cases? It is possible (but not always the case), it usually occurs near the free-surface flow due to external effects, such as the wind effect.

Why is the velocity of water in a river less on the bank but great at the middle?

The velocity in the river is more in the middle compared to that near the bank because near the bank there will be sand and dirt particles as a result an adhesive force acts between water particles and these dirt particles which act as frictional force that reduces the velocity of the flowing water.

When the velocity of particles of liquid flowing through pipe line at any given point is constant the flow is?

The flow of fluid is said to be steady if at any given point, the velocity of each passing fluid particle remains constant.

What is the velocity of fluid at the center of pipe?

Instead the velocity at the center of the pipe is now low, and the highest velocity is found on the outdside turn of pipe, about half way between the center and edge of the pipe. This is due to secondary flow- its some This is very simple. The friction of the pipes walls slow the fluid down. In fact, the velocity of the fluid at the wall is zero.

Which layer of a pipe has the maximum velocity?

Fluid with in contact with solid surface will resist the motion, same effect will carry on to the upper layers. In the pipe if you think like that middle layer will be the upper most layer or the layer which is farthest from each point in the pipe. So, that layer will have maximum velocity.

Why does water flow faster in the center of a pipe?

As a consequence the liquid can flow faster in the centre of the pipe were there is less attraction to the surface of the pipe. When water or any other fluid runs through pipe the velocity of water or the taken fluid near it’s wall is less because of the friction the wall exerts.

What is velocity gradient in a conduit?

In closed conduit or pipe flows, the fluid near or close to wall boundary experiences more differential cohesive forces along the principal or normal to direction of flow ‘sometimes known as velocity gradient’. This force is responsible for fluid layer to remain attached to wall.