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Investigation of Unsteady Flow Phenomena in a Counterrotating Ducted Propfan
Volume 1: Turbomachinery
Experimental and numerical investigations on a counterrotating propfan (CRISP') have been carried out to study unsteady flow phenomena generated by the interaction of the two rotors. This paper focuses mainly on the downstream effects of rotor 1 on rotor 2. Therefore unsteady Laser-2-Focus, unsteady total pressure measurements and an unsteady simulation have been carried out. The total pressure measurements behind the rotors show variations of the absolute total pressure outside the wakedoi:10.1115/98-gt-251 fatcat:lmxovvywn5dzpf6nbtbsnpt2hu