Torque data on non-isothermal rarefied Cylindrical Couette flow

摘要: Abstract The torque exerted on the walls of a micro cylindrical Couette gas flow is studied using Direct Simulation Monte Carlo (DSMC) method and analytical solutions. An solution for temperature filed under specified wall heat flux condition proposed previously introduced power-law (PL) wall-scaling approach. results are compared with those isothermal flow. effects rarefaction, compressibility, tangential momentum accommodation coefficient (TMAC) gas-surface exchange values investigated slip to free molecular regimes. indicate that has maximum value at transitional regime TMAC less than unity. Lower higher Knudsen numbers lead reduction deviation magnitudes from continuum limit. Thermal simulations show heating cooling have significant values. Velocity profiles normalized demonstrate mixed increasing/decreasing behavior heating/cooling processes rarefied