Study of precessing vortex core in a cylindrical chamber

The work is devoted to numerical and experimental study of unsteady flow in a model vortex chamber with formation of precessing vortex core (PVC). Influence of the vortex chamber geometry on vortex precession frequency and structure of secondary vortices generated in exit section of the chamber has been revealed. Optimization of the vortex chamber geometry for the PVC study in canonical conditions has been carried out. The results obtained will be a base for further studies of PVC which will be targeted on detailed measurements of unsteady flow field making use of modern measurement systems such as LDA and PIV