Optimization on Structural Parameters of Blade Profile of ø175 mm Turbodrill
Shiyou jixieThe ø175 mm turbodrill was investigated for the effect of structural parameters of blade profiles on the efficiency and torque of the turbodrill.Based on the quintic polynomial theory and the basic principles of computational fluid dynamics,a ...
Yuan Xinmei +6 more
doaj
Investigation of Anti-Phase Asymmetric Quiet Rotor Technology [PDF]
The future of urban air mobility has a well-known tall pole challenge in the form of community acceptance which largely comes from the noise. This paper presents a proposed anti-phase rotor technology that could reduce noise sources such as blade vortex ...
Cramer, Nicholas B. +3 more
core +1 more source
Numerical Simulation of Aerodynamic Noise Generated by Large Wind Blade Airfoil
Kongzhi Yu Xinxi Jishu, 2017 Aiming to reduce aerodynamic noise of wind blade, a method of coupling CFD/CAA was used to simulate the aerodynamic noise of wind blade airfoil. In this paper, surface pressure distribution of airfoil was obtained by using STAR-CCM+ and the near sound ...
LI Dongxu +5 more
doaj
Concentrated mass effects on the flutter of a composite advanced turboprop model [PDF]
The effects on bending-torsion flutter due to the addition of a concentrated mass to an advanced turboprop model blade with rigid hub are studied. Specifically the effects of the magnitude and location of added mass on the natural frequencies, mode ...
Kaza, K. R. V., Ramsey, J. K.
core +1 more source
Effect of blade trailing edge treatment on the hemolysis and hydraulic performance of left ventricular assist device. [PDF]
iScienceLai F, Cao C, Li Y, Qiu Z, Chen L.
europepmc +1 more source
A dataset of measured machining deviations of compressor rotor blades. [PDF]
Sci DataGao L, Dan Y, Wang H, Li R, Yang G.
europepmc +1 more source
Airfoil self-noise and prediction [PDF]
A prediction method is developed for the self-generated noise of an airfoil blade encountering smooth flow. The prediction methods for the individual self-noise mechanisms are semiempirical and are based on previous theoretical studies and data obtained ...
Brooks, Thomas F. +2 more
core +1 more source
Study of the Noise Reduction Mechanism of Bionic Circular Arch Structures on the Blades of a High-Volumetric-Airflow Axial Flow Fan. [PDF]
Biomimetics (Basel)Shen C +5 more
europepmc +1 more source
The construction and operation of a water tunnel in application to flow visualization studies of an oscillating airfoil [PDF]
The water tunnel which was constructed at the NASA Ames Research Center is described along with the flow field adjacent to an oscillating airfoil. The design and operational procedures of the tunnel are described in detail.
Liu, H. T., Olsen, J. H.
core +1 more source
Enhancing start-up and torque in Darrieus VAWTs through a novel plain gurney flap design. [PDF]
Sci RepEltayeb W +4 more
europepmc +1 more source