...Gary Koopmann; Ulf Michel 06 09 2011 22 11 2011 08 12 2011 08 12 2011 acoustic intensity measurement acoustic noise aeroacoustics fans microphones pipe flow turbomachinery vibrations Wolfgang Neise, renowned for his life-long contributions to advancing...

...Stefano Bianchi; Alessandro Corsini; Franco Rispoli; Anthony G. Sheard This study investigates the causal relationship between flow aerodynamics and radiated noise in low-speed axial fans. Using blades with three distinctive tip configurations, including two that were developed with a view...

...Stefano Bianchi; Alessandro Corsini; Franco Rispoli; Anthony G. Sheard This paper presents the findings of an investigation on the use of several blade-tip configurations (modified by the addition of various end plates at the blade tip) for passive noise control in industrial fans. Utilizing...

...Lee Gorny; Gary H. Koopmann Fan noise challenges noise control engineers in developing products ranging in scale from small ventilation systems to large turbomachines. The dominant noise source in many axial fans is the tonal noise due to rotor/stator interactions at the fundamental blade passing...