![]() It describes how the particles present within a fluid moves with respect to time. In case of a streamline flow, the tangent drawn at any point of the curve (path) will be in direction of the velocity of the fluid at that point.īelow diagram represents a curve with tangents at different points. Hence, streamline is the path taken by fluid particles under the steady flow condition. Therefore, under steady flow condition, the fluid particles will follow a smooth path that will not cross each other. Steady flow signifies that each particle passing through the second point will behave the same as the previous fluid particle that has initially crossed that point. This means that at a different point the particle can have a different velocity. The velocity of a fluid particle can change as the fluid moves from one particular point to the other. However, this statement does not mean that the velocity of fluid particles will not vary at a different point in space. The flow is steady when the velocity of every particle within the fluid is constant in time. ![]() Here we will focus on what will happen to the various fluid particles at a certain point in space at a particular time. But the smoothness is lost as we gradually keep on increasing the outflow speed. We have learned how opening a water tap slowly is responsible for the smooth flowing of water. It is an important part of fluid dynamics (the study of fluids in motion). We have mostly studied about fluids at rest but streamline flow is an example of fluids in motion. The first type of condition is a streamline flow. However, if we introduce the ink in case of turbulent flow, the ink will mix with other layers of water. ![]() When you will introduce a stream of ink in the first case where water is flowing smoothly, the ink will not mix with other layers. Now, in both cases, the introduction of ink will give different results. However, if you gradually keep on increasing the flow rate you will begin to see the disturbances and voids after a particular point of increasing the flow rate. You will observe that when the flow rate is low the water flowing from the tap will run smoothly and the water will have a smooth texture. Notice water flowing from a tap at a different flow rate. The movement happens in a way that the adjacent layers of the fluid will smoothly slide past each other.Įxamples of Streamline and Turbulent Flows The fluid particles tend to follow a particular order where the movement or motion of fluid particles will be on the basis of particles flowing in a straight line parallel to the pipe wall. In case of low fluid velocities, the fluid will flow without any sort of lateral mixing because of lack of turbulent velocity fluctuations. The velocity of each fluid particle flowing will remain constant with time in streamline flow. Streamline flow in case of fluids is referred to as the type of flow where the fluids flow in separate layers without mixing or disruption occurring in between the layers at a particular point. Browse more Topics Under Mechanical Properties Of Fluids Therefore, on the basis of the above characteristics water can either be streamline/laminar flow or turbulent flow. The major characteristic of the streamflow of a liquid is velocity. The direction and speed of the flowing water are dependent on the object found in the stream. The source location of the stream has the potential to influence the speed of the water as well as the manner of flow within the stream.Īnother important factor influencing the flow within the stream is the object that is physically present in the stream. Different sources include rainfall, the ground below the stream or even melting snow. This topic will help you to understand one of a primary way of flow.Īn important factor that influences the flow of water within streams is the location or source of the stream. Moreover, they are also different from each other in speed and the flow direction. You might have seen streams come in different size, shape, etc.
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