Simulation of Unsteady Aerdynamic Load for Rigid Coaxial Rotor in Forward Flight with Vortex Particle Method [PDF]
, 2017 Co-axial rotor systems are frequently used for high-speed helicopters. Nevertheless, issues related to rotor-head drag, aerodynamic performance and vibration should also be considered. Simulating the unsteady aerodynamic loads for a rigid coaxial rotor,
Barakos, George N. +2 more
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Controlling the flow loss of a supersonic compressor rotor using the blade slotting method
Advances in Mechanical EngineeringThe flow loss in the blade passage of a supersonic compressor rotor mainly comes from the boundary layers on the blade surface and end wall, the shock wave, the shock wave/boundary layer interaction, and tip leakage flow; the instability is mainly caused
Xinlong Ye, Zhenggui Zhou
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Blade loss transient dynamics analysis, volume 1. Task 1: Survey and perspective [PDF]
An analytical technique was developed to predict the behavior of a rotor system subjected to sudden unbalance. The technique is implemented in the Turbine Engine Transient Rotor Analysis (TETRA) computer program using the component element method.
Bach, L. J. +3 more
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Reconstruction of a three-dimensional, transonic rotor flow field from holographic interferogram data [PDF]
Holographic interferometry and computerized aided tomography (CAT) are used to determine the transonic velocity field of a model rotor blade in hover. A pulsed ruby laser recorded 40 interferograms with a 2 ft dia view field near the model rotor blade ...
Kittleson, John K., Yu, Yung H.
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Hingeless rotor frequency response with unsteady inflow [PDF]
Hingeless rotor frequency response calculations are obtained by applying a generalized harmonic balance to the elastic blade flapping equations.
Peters, D. A.
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Analytical investigation of blade efficiency for two-dimensional supersonic turbine rotor blade sections [PDF]
Blade efficiency in producing vortex flow within two dimensional supersonic rotor blade ...
Goldman, L. J.
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Effects of increased leading-edge thickness on performance of a transonic rotor blade [PDF]
A single-stage transonic compressor was tested with two rotor blade leading-edge configurations to investigate the effect of increased leading-edge thickness on the performance of a transonic blade row. The original rotor blade configuration was modified
Reid, L., Urasek, D. C.
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A prescribed wake rotor inflow and flow field prediction analysis, user's manual and technical approach [PDF]
A user's manual is provided which includes the technical approach for the Prescribed Wake Rotor Inflow and Flow Field Prediction Analysis. The analysis is used to provide the rotor wake induced velocities at the rotor blades for use in blade airloads and
Egolf, T. A., Landgrebe, A. J.
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Three-dimensional inviscid analysis of radial turbine flow and a limited comparison with experimental data [PDF]
The three-dimensional inviscid DENTON code is used to analyze flow through a radial-inflow turbine rotor. Experimental data from the rotor are compared with analytical results obtained by using the code. The experimental data available for comparison are
Choo, Y. K., Civinskas, K. C.
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Applications of Modelling and SimulationModifications in classical Savonius rotor have extensively been studied in an attempt to improve turbine performance. The present work investigates experimentally and computationally the effects of combining two different blade shape configurations into ...
Abdel-Fattah Mahrous
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