A | cross-sectional area (mm2) | R | tube radius (mm) |
| specific heat [J/(kg K)] | Re | Reynolds number |
| average specific heat [J/(kg K)] | Ri | Richardson number |
d | diameter (mm) | T | temperature (K) |
G | mass flux [kg/(m2 s)] | u | fluid velocity (m/s) |
Gr | Grashof number | v | velocity (m/s) |
h | heat transfer coefficient [W/(m2 K)] | Greek symbols | |
i | enthalpy (J/kg) |
| Thermal conductivity [W/(m K)] |
k | turbulent kinetic energy (m2/s2) |
| viscosity (g/m s) |
| mass flow rate (kg/s) |
| density (kg/m3) |
Nu | Nusselt number | Abbreviations / Acronyms | |
P | pressure (MPa) | GWP | Global Warming Potential |
Pr | Prandtl number | LB | Lattice-Boltzmann |
q | heat flux (kW/m2) | ODP | Ozone Depletion Potential |
Q | heat exchange amount (kW) | SST | Shear Stress Transport |
r | radial coordinate (mm) |
|
|