Bicalho Civinelli de Almeida, Victor ; Peitsch, Dieter (2018-10-15)
A numerical aeroelastic assessment of a highly loaded high pressure compressor exposed to flow disturbances is presented in this paper. The disturbances originate from novel, inherently unsteady, pressure gain combustion processes, such as pulse detonation, shockless explosion, wave rotor or piston topping composite cycles. All these arrangements promise to reduce substantially the specific fue...Physics of prestall propagating disturbances in axial compressors and their potential as a stall warning indicator
Eck, Mario ; Geist, Silvio ; Peitsch, Dieter (2017)
Axial compressors in aero engines are prone to suffering a breakdown of orderly flow when operating at the peak of the pressure rise characteristic. The damaging potential of separated flows is why a safe distance has to be left between every possible operating point and an operating point at which stall occurs. During earlier investigations of stall inception mechanisms, a new type of prestall...