Fluid Properties: helium
Fluid thermophysical properties — density, viscosity, thermal conductivity, specific heat for air, water, and other fluids at various temperatures
| fluid | temp C | density kg m3 (kg/m3) | dynamic viscosity Pa s (Pa*s) | kinematic viscosity m2 s (m2/s) | notes | prandtl number (dimensionless) | specific heat J kgK (J/kgK) | thermal conductivity W mK (W/mK) |
|---|---|---|---|---|---|---|---|---|
| helium | -200 | 0.6669 | 0.000011 | 0.000016 | He gas at 1 atm. Source: NIST TN1334; Engineering ToolBox helium d_1418 | 0.78 | 5,193 | 0.0735 |
| helium | -150 | 0.3961 | 0.000014 | 0.000034 | He gas at 1 atm. Source: NIST TN1334; CRC Handbook 85th ed. | 0.75 | 5,193 | 0.0944 |
| helium | -100 | 0.2818 | 0.000016 | 0.000057 | He gas at 1 atm. Source: NIST TN1334; CRC Handbook 85th ed. | 0.73 | 5,193 | 0.1131 |
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