... convection heat transfer microchannel microtube rarefied flow Nusselt number viscous dissipation constant heat flux constant wall temperature Brinkman number Peclet number Due to the trend of miniaturization of electromechanical systems, there is an increasing need for micro heat exchangers...

... that these analytical expressions describe very well the results of numerical calculations at any Peclet numbers except for a very narrow range of Pe close to unity. A method of calculation of the cut shape (variation of the tilt angle inside the cut) is discussed. Cutting a metal with a moving heat source (MHS...