![]() The tangential force required to shift one horizontal plane of a fluid relative to another is known as dynamic viscosity. So, dynamic viscosity may be defined as the tangential force per unit area necessary to move a fluid in one horizontal plane relative to another plane at a velocity of unit value while the fluid’s molecules remain a unit distance apart. During the analysis of liquid behavior and fluid motion near solid boundaries, viscosity is an essential fluid characteristic.Īs a result, dynamic viscosity is the force required by a fluid to overcome internal molecular friction and allow it to flow. This is a type of tangential force that occurs when two horizontal planes contact. Formula for Dynamic Viscosityĭynamic Viscosity Formula for the fluid will specify its internal resistance to the flow due to a certain shearing force. The force, or torque, required to turn the probe is used to determine viscosity. The probe in the liquid sample will be rotated by these instruments. The intermolecular friction that occurs when layers of fluids attempt to glide over each other can cause shear stress in the fluid.Ī rotational viscometer is a useful tool for determining dynamic viscosity. The viscosity of a fluid is a measurement of its resistance to progressive deformation under tensile or shear stress. ![]() Also, when it comes into touch with solid limits, how it will move. The viscosity of a fluid is a crucial attribute to know in order to understand its behavior.
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