Conductive Heat Flux Driven by a Pressure Gradient in Non-Maxwellian Reference States

arXiv:2602.21245v1 Announce Type: cross Abstract: Standard Navier--Stokes--Fourier theory and Maxwellian-based Grad 13-moment closures yield no independent pressure-gradient driving of the conductive heat flux in an isothermal, single-component gas in the hydrodynamic (small-K...

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