![]() s, although this can vary depending on the specific type of oil and the temperature at which it is tested.īlood plasma has a lower dynamic viscosity than honey or engine oil, typically ranging from 0.001 Pa.s, depending on factors such as temperature and moisture content.Įngine oil generally has a dynamic viscosity in the range of 0.05 Pa.Honey typically has a relatively high dynamic viscosity, ranging from around 2 Pa Reyn (reyn) – used for very low viscosity fluids, defined as 1 dyne Τ: Shear stress, μ: Dynamic viscosity, dv/dy: Velocity gradientĬentipoise (cP) – equal to 0.001 Poise or 0.0001 Pa It is a property of the fluid and is a measure of how thick or resistant to flow the fluid is. DefinitionĪ measure of the resistance of a fluid to flow under an applied force or stress. ![]() The unit of viscosity, accordingly, is newton-second per square meter, which is usually expressed as pascal-second in SI units. The dimensions of dynamic viscosity are (force × time) ÷ area. ![]() It is caused by the intermolecular forces that exist between particles in a fluid. Dynamic viscosity is the resistance to the movement of one layer of fluid over another layer of fluid.įriction within a fluid causes viscosity. ![]()
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