Hot-film measurement of temperature gradient induced natural convection in liquid gallium

An experimental study on temperature gradient induced natural convection in molten gallium is presented in this paper. The induced temperature and velocity fields are mapped simultaneously. A standard hot-film anemometer working under constant temperature mode is used to measure the velocity profile, and the temperature profile is measured using a standard T type thermocouple. The obtained velocity and temperature distributions are compared with previous numerical simulations and reasonably good agreements have been achieved.