c_p     specific heat at constant pressure                                     J/kgK

d_w     diameter of individual wire                                               m

h     coefficient of convective heat transfer                                 W/m²K

L     overall stack length passage length                                     m

m_w     mesh number – number of wires/m (frequently quoted as wires/inch in the literature)  m^-1

r_h     hydraulic radius – ratio of wetted volume to wetted area     m

R     specific gas constant                                                            J/kgK

T     absolute temperature                                                            K

x     distance coordinate                                                               m

m     coefficient of dynamic viscosity                                             Pas

r     density                                                                                 kg/m³

P_r     Prandtl number mc_p/k                                                         -

g     specific heat ratio – isentropic index                                       -

home    back to Specification    back to Article # 1    back to bibliography