Аннотация:The nonisothermal steady rarefied gas flow driven by a given pressure gradient (Poiseuille
flow) or a temperature gradient (thermal creep) in a long channel (pipe) of an arbitrary cross section
is studied on the basis of the linearized kinetic Smodel. The solution is constructed using a highorder
accurate conservative method. The numerical computations are performed for a circular pipe and for
a cross section in the form of a regular polygon inscribed in a circle. The basic characteristic of interest
is the gas flow rate through the channel. The solutions are compared with previously known results.
The flow rates computed for various cross sections are also compared with the corresponding results
for a circular pipe.