In this paper, the effect of an active flow control system on onset mechanisms rotating stall in axial compressor is experimentally investigated. A particular emphasis thus given patterns present tip region right before and how they evolve when applied. The involved during formation without are carefully assessed compared to literature. To purpose, development first instability into discussed b...

This paper proposes a stage flow parameter analytical model for rapid evaluation of counter-rotating compressor’s performance design optimization and its application in the transonic fan. In first part, velocity diagram method, considering influence flow-path geometry variation enhancing accuracy, is used to correlate aerodynamic between inlet guide vane (IGV), upstream rotor (R1), downstream C...

Based on thermodynamic and mechanical models. the axial and tangential forces acting on the orbiting scroll and their balance methods are discussed in this paper. Besides, a detailed analysis of orbiting mechanism of three Pins is carried out too. INTRODUCTION The advantageous characteristics of scroll compressor have been pr1>ved in theory and experiment [ 1 ] [ 3 ] in rer.ent years. Remarking...

in this study, aerodynamic characteristics of a circular cylinder in an axial flow have been investigated numerically and experimentally. the model has been considered as a cylinder with truncated nose and fineness ratio of 3 (length to diameter ratio of 3). the investigation involves a series of wind tunnel measurements, flow visualization, and numerical simulation. we used different mach numb...