We apply physics-informed neural networks to three-dimensional Rayleigh–Bénard convection in a cubic cell with a Rayleigh number of Ra = 106 and a Prandtl number of Pr = 0.7 to assimilate the velocity vector field from given temperature fields and vice versa. With the respective ground truth data provided…
The results of simultaneous measurements of velocity and temperature fields in a turbulent mixed convection airflow are analyzed and discussed. To access local temperature and velocity fields in airflows, we present a combination of stereoscopic particle image velocimetry and particle image thermometry.…
This dissertation addresses the dynamic behavior occurring for flow structures in the turbulent mixed convection. To study them, experiments were conducted in a cuboidal mixed convection chamber representing a Rayleigh-Bénard setup, which was extended by air in- and outlets at the upper and lower long…