要約

Experiments were carried out using an experimental vertical uniformly heated channel in order to investigate the impact of controlled perturbations on the flow. To that extent, acoustic perturbations are introduced using a speaker. Temperature and velocity measurements are carried out using thermocouples and Particle Image Velocimetry method. The introduced perturbation has an impact on the averaged velocity as well as on inlet fluctuations. Inlet fluctuations features are identified by means of Proper Orthogonal Decomposition method.