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Online calculator, figures and tables showing dynamic (absolute) and kinematic viscosity of gasous and liquid ammonia at temperatures ranging from -73 to 425°C (-100 to 800°F) at pressure ranging from 1 to 1000 bara (14.5 - 14500 psia) - SI and Imperial Units.
The SI unit of dynamic viscosity is the newton-second per square meter (N·s/m 2), also frequently expressed in the equivalent forms pascal-second (Pa·s), kilogram per meter per second (kg·m −1 ·s −1) and poiseuille (Pl).
Absolute or dynamic viscosity is used to calculate Reynold's Number to determine if a fluid flow is laminar, transient or turbulent. Online Water Viscosity Calculator. The calculator below can be used to calculate the liquid water dynamic or kinematic viscosity at given temperatures.
Online calculator, figures and tables with dynamic (absolute) and kinematic viscosity for air at temperatures ranging -100 to 1600°C (-150 to 2900°F) and at pressures ranging 1 to 10 000 bara (14.5 - 145000 psia) - SI and Imperial Units.
Greek symbol mu (μ) or eta (η) represents dynamic viscosity. Its SI unit is Pascal-second or Paˑs, equivalent to Nˑs/m 2 or Paˑs. The cgs unit is poise or P. ASTM standard uses centiPoise or cP.
The SI units for dynamic (absolute) viscosity is given in units of N·S/m 2, Pa·S, or kg/(m·s), where N stands for Newton and Pa for Pascal. Poise are metric units expressed as dyne·s/cm 2 or g/(m·s).
The SI unit for dynamic viscosity η is the Pascal-second (Pa-s), which corresponds to the force (N) per unit area (m2) divided by the rate of shear (s-1). Just as in the definition of viscosity!
(dynamic) viscosity units. The SI unit of viscosity is the pascal second [Pa s], which has no special name. Start with the definition of viscosity… The units on the right side of this equation are, in the numerator… [N/m 2 = Pa] …and in the denominator… [m/s × 1/m = 1/s] …which together are…
The unit of viscosity, accordingly, is newton -second per square metre, which is usually expressed as pascal -second in SI units. The viscosity of liquids decreases rapidly with an increase in temperature, and the viscosity of gases increases with an increase in temperature.
In the International System of Units (SI), the unit of dynamic viscosity is Pascal-second (Pa.s). The Pascal (Pa) is an SI unit of pressure, equivalent to one Newton per square metre (1 N/m²), and the second (s) is the SI unit of time.