Flow field of an unconfined low-Reynolds-number binary-mixture slot jet

The flow field of a slot jet at low Reynolds numbers (Re=39.4 and 78.8) was examined numerically and experimentally. The slot exit velocities are small, so the gravitational force has to be taken into consideration in numerical calculation. Experimentally, the fluid containing oxygen and nitrogen was issued from a slot jet into the quiescent atmosphere. The concentration field was measured by using a gas chromatograph and a gas-extracting quartz probe. Furthermore, smoke particles were used to visualize the flow field.