Pumping using thermal waves

It is shown that thermal waves applied on the bounding surface of a horizontal slot generate pumping effect. Reynolds stress developed by change in flow field due to inertia associated with penetration wave into fluid interior drives net movement direction. The induced rate increases speed, but excessive speed reduces it as convection becomes limited only near-wall area. increase wavelength and its decrease reduce rate. An amplitude saturation limiting growth. Judicious selection provides means for optimizing wave-induced pumping. magnitude reduction Prandtl number.