Flow structure and heat transfer during the separation of a pulsating flow

Experimental setup for vusualization of pulsating turbulent flows

“…The receiver is intended for smoothing of flow pul sations before a centrifugal governor 9 which sucks in the air and provides the air flow within the setup. 1 The article was translated by the authors.…”

Heat transfer in a pulsating flow in a converging channel

“…This is accompanied by variation in distributions of pressure, shear stress on the wall and heat transfer coefficient along the separation region. The reattachment length becomes half its initial size, heat transfer enhancement is observed particularly near the obstacle which causes flow separation [6].…”

Flow rate through a long channel with a rotating damper at the end

“…Superimposed flow rate (velocity) fluctuations in a channel are able to considerably change the momentum and heat transfer processes in such flows [1][2][3]. The kinematic structure of these unsteady flows is fundamentally different from that of a steady flow [3][4][5].…”

“…The kinematic structure of these unsteady flows is fundamentally different from that of a steady flow [3][4][5]. In separation flows the formation of regular vortices and the shortening of the separation zone can be observable.…”