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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.
The viscosity of air depends mostly on the temperature. At 15 °C, the viscosity of air is 1.81 × 10 -5 kg/(m·s) , 18.1 μPa·s or 1.81 × 10 -5 Pa·s . The kinematic viscosity of air at 15 °C is 1.48 × 10 -5 m 2 /s or 14.8 cSt.
Kinematic viscosity (marked with the Greek letter nu \nu ν) describes a relationship between dynamic (absolute) viscosity and air density. For comparison, check water viscosity calculator. You can obtain the kinematic viscosity of air by dividing dynamic viscosity by the density \rho ρ: \nu = \frac {\mu} {\rho} ν = ρμ.
The properties of Air have been tabulated below, listed by temperature in ascending order. The properties listed are density, viscosity specific heat capacity, thermal conductivity and Prandtl number. Note: Pay attention to the units for viscosity. Example: 1.6478×10 -5 kg/m.s = 0.000016478 kg/m.s.
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.
Representative values for the properties of air are given on another page, but the actual value of the parameter depends on the state of the gas and on the altitude. On this page, we examine the viscosity of a gas. As an object moves through a gas, the gas molecules stick to the surface.
Find the dynamic (absolute) and kinematic viscosity of air at different temperature values in both SI and US customary units.
Air viscosity at 0°c, 25°c and from -100°c to 500°c. How the air viscosity change with temperature ? How the air viscosity vary with pressure ?
Air viscosity values at various temperatures and pressures are given in Table 4. Table 4. Air viscosity η · 107, N · s/m2. The behavior of the thermal conductivity of air is similar to the viscosity: in the liquid phase with growing temperature the heat conductivity decreases whereas in the gas phase-increases.
As opposed to air, viscosity decreases with temperature in water; therefore, heat applied to the surface would cause the boundary layer profile to become more stable. Whereas active cooling can delay transition in air, underwater research and applications have focused on achieving laminar flow through active heating control.