MAXWELLS THERMAL CREEP IN 2 SPACE DIMENSIONS

''Thermal Creep'' is a steady streaming motion. induced by a temperatu re gradient parallel to a fluid boundary, in the absence of gravity. T hermal creep has been studied by Maxwell, analyzed by Kennard, and sim ulated by Ibsen: Soto, and Cordero. Here we report several two-dimensi onal simulations. We find that the creep velocity is sensitive to the imposed macroscopic boundary conditions and that the agreement with ex isting theoretical predictions is only semiquantitative.