Mixing
Mixing processes are critical in many applications including chemical and biological reactors, indoor ventilation and atmospheric dispersion. Coanda utilizes measurement techniques such as Laser Induced Fluorescence (LIF) and conductivity probes to determine the temporal and spatial concentration fields within laboratory models. The impact of design changes on mixing are often a central topic of investigation in our research studies.
Shown here is a laboratory simulation performed at Coanda to study mixing in a chemical reactor vessel. 2D LIF was used to quantify the scalar concentration field following a pulse injection. False coloured images representing the concentration field are shown after two, six and ten impeller revolutions.The upper three images were obtained with Re = 1500 and the lower three were obtained with Re = 200.