Data on the velocity slip and temperature jump coefficients [gas mass, heat and momentum transfer]

When modeling microfluidics, it is necessary to calculate gas flows through micropumps, microvalves and other elements. The heat transfer through a gas at microscale must also be known for modeling of microsystems. Since the size of microsystems is close to the molecular mean free path, the gas rarefaction must be taken into account. If the Knudsen number is moderately small, then gas flows and heat transfer can be calculated, applying the continuum mechanics equations with velocity slip and temperature jump boundary conditions. In the present work, a critical review of the theoretical results on the slip and jump coefficients and their recommended data are given.