COMPUTATIONAL STUDY OF AERODYNAMIC CHARACTERISTICS OF SINGLE-ROTOR HELICOPTER TAIL ROTOR UNDER THE INFLUENCE OF VORTICAL WAKE OF MAIN ROTOR AT THE HOVER WITH CROSSWIND

For single-rotor helicopters there are special flight modes, when tail rotor (TR) is under significant inductive influence of vortical wake of main rotor (MR).Inductive influence of vortical wake of MR can provoke essential changes in flowing of TR and its neflintw-r6mpw aerodynamic characteristics comparing to isolated rotor.In this case increase

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Mineral revolution for the wellbeing economy

Non-technical summary.As we consider a transition to a low-carbon future, there is a need to examine the mineral needs for this transformation at a scale reminiscent of the Green Revolution.The efficiency gains of rock cliff reservoir the agrarian transition came at ecological and social costs that should provide important lessons about future meta

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