The property of the jam to follow your hand is viscosity - the jam does not flow, even though you push it, but follows your hand instead. The jam will follow your hand and the cube will be distorted. If you put this jam cube onto a plate, then touch the top of the cube with your hand, and pull your hand parallel to the surface of the cube in any direction - you will be acting on the jam cube with a force that causes shear stress. For example, imagine a substance so viscous, that it can retain its shape, say a cube, for several minutes almost without changing - like a very viscous fruit jam. Viscosity is often talked about in the context of shear stress, where shear stress is defined as stress that results from a force that acts parallel to the cross-section of the object. Dynamic or absolute viscosity measures the resistance inside of the fluid and is independent of the density of this fluid.
Viscosity is a property of a fluid to resist the force that pushes the fluid to flow.
Feel free to contact us for any feedback.Pouring viscous cream into a cup of non-viscous coffee
Lenntech BV is not responsible for programming or calculation errors on this sheet. You need to know the length (in meters) of the pipe. If you know the number of Reynolds, you can calculate the pressure in a pipe line. When the stream is not turbulent (laminar), the velocity and direction of the particles is always the same. A turbulent stream is a stream where the velocity of the particles have random directions. With that you know whether the stream is turbulent or not. When you know the viscosity, you can amongst others calculate the number of Reynolds. The unit of dynamic viscosity is the Poiseuille (=Pa When the resistance gets higher, the viscosity get greater with it.
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