The main purpose of this study is to propose a new method for designing two-dimensional blade sections. In work, two marine propellers are investigated. section the newly designed propeller, as compared with that MAU5-80 has certain angle attack. Except ordinate section, other parameters modified such thickness and area ratio same those propeller. When propeller model, which highest efficiency ...

Abstract This paper presents an experimental assessment of a blended fatigue‐extreme controller for load control employing trailing edge flaps on lab‐scale wind turbine. The blends between repetitive model predictive that targets fatigue loads and dedicated extreme controller, which consists simple on‐off strategy. Fatigue uses the flapwise blade root bending moments three blades as input senso...

The blades of axial-flow rotors, which are typically made flexible composite materials, can experience significant deformations through their operation. However, the impact these on rotor hydrodynamics is not well understood. Blade be separated into three main components: flapwise, a thrust-driven deformation in direction flow; edgewise, relatively small plane motion and driven by torque; twist...

The article discusses the process of designing and testing as well their results, carried out in order to increase efficiency axial fans, implemented part European project INESI. Modifications existing solutions based on rapid prototyping methods were presented. Scanning, FEM CFD numerical calculations 3D printing used for that purpose. Rapid involved use a steel blade base 3D-printed complex a...

The thermal effect of cool jets issuing into an incompressible hot cross flow at an angle over a turbine blade is the subject. Numerical solutions for twelve multiple flow arrangements with two flow ratios, two different hole spacing and four different jet issuing angles document strong to moderate secondary vortex structures spanning normal to the direction of the jet. This fully three-dimensi...

PURPOSE We have experienced a major fall in the economy in the recent past. We need something to help boost the economy. Our non-renewable sources of energy are also running out. We desperately are in need of an alternate renewable clean resource for energy. In doing this project, the researcher hopes to find the most efficient combination of blade angle and width on a wind turbine. HYPOTHESIS ...

In this study, airfoil shape optimization of a wind turbine blade is performed using the ANSYS Fluent Adjoint Solver. The aim process to increase output power, and objective function maximize lift drag ratio (Cl/CD ). This study applied NREL phase VI turbine, therefore, S809 used as reference profile. First, for validation numerical model, steady-state simulations are carried out at various ang...

in the present paper, the aeroelastic stability of helicopter rotor blade is determined using aeroelastic frequency response function. the aeroelastic model of blade is obtained by combining dowell - hodges beam model with loewy unsteady aerodynamic theory which considers an unsteady wake beneath the rotor. equations are formed and aeroelastic frequency response functions are obtained by invert...

development of new technologies and combined with creativity and innovation, plays the fundamental role in developing of any community′s value. thus, in this research the design and production of hydroforming device was introduced. one of the best and most efficient technologies in the world of metal forming is wind turbine blade producing with hydroforming method which seems as an innovative m...

a r t i c l e i n f o Keywords: Mixing performance DEM MGMMI Blade-rake angle Bladed mixers This study focuses on the understanding of flow over a single blade and its impact on powder mixing. The Discrete or Distinct Element Method (DEM) is used and the flow of a single blade through a bed of a binary particle mixture is studied. Mixing performance with respect to a blade-rake angle and partic...