INSTABILITY OF THERMOCAPILLARY-BUOYANCY CONVECTION IN SHALLOW LAYERS - PART 2 - SUPPRESSION OF HYDROTHERMAL WAVES

Hydrothermal-wave instabilities in thermocapillary convection are know n to produce undesirable effects when they occur during the float-zone crystal-growth process, and perhaps in other situations. Suppression of the hydrothermal-wave instability produced in the model system of P art 1 (Riley & Neitzel 1998) is demonstrated through the sensing of fr ee-surface temperature perturbations and the periodic addition of heal at the free surface along lines parallel to the crests of the hydroth ermal waves.