Advances in ocean current turbine blade design

2021 ◽  
Author(s):  
Hassan Mahfuz ◽  
Nicholas Asseff ◽  
Mohammad Wasim Akram ◽  
Fang Zhou ◽  
Takuya Suzuki ◽  
...  
Keyword(s):  
Turbine Blade ◽  
Ocean Current ◽  
Blade Design ◽  
Turbine Blade Design ◽  
Current Turbine

scholarly journals Wind Turbine Blade Design Review

2012 ◽  
Vol 36 (4) ◽  
pp. 365-388 ◽  
Author(s):  
P.J. Schubel ◽  
R.J. Crossley
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Blade Design ◽  
Design Review ◽  
Turbine Blade Design

Influence of Turbocharger Turbine Blade Geometry on Vibratory Blade Stresses

2018 ◽  
Vol 141 (2) ◽  
Author(s):  
Pavan Naik ◽  
Bernhard Lehmayr ◽  
Stefan Homeier ◽  
Michael Klaus ◽  
Damian M. Vogt
Keyword(s):  
Turbine Blade ◽  
High Cycle Fatigue ◽  
Pressure Field ◽  
Spanwise Direction ◽  
Blade Design ◽  
Centrifugal Forces ◽  
Baseline Design ◽  
Combined Stresses ◽  
Blade Thickness ◽  
Turbine Blade Design

In this paper, a method to influence the vibratory blade stresses of mixed flow turbocharger turbine blade by varying the local blade thickness in spanwise direction is presented. Such variations have an influence on both the static and the vibratory stresses and therefore can be used for optimizing components with respect to high-cycle fatigue (HCF) tolerance. Two typical cyclic loadings that are of concern to turbocharger manufacturers have been taken into account. These loadings arise from the centrifugal forces and from blade vibrations. The objective of optimization in this study is to minimize combined effects of centrifugal and vibratory stresses on turbine blade HCF and moment of inertia. Here, the conventional turbine blade design with trapezoidal thickness profile is taken as baseline design. The thicknesses are varied at four spanwise equally spaced planes and three streamwise planes to observe their effects on static and vibratory stresses. The summation of both the stresses is referred to as combined stress. In order to ensure comparability among the studied design variants, a generic and constant excitation order-dependent pressure field is used at a specific location on blade. The results show that the locations of static and vibratory stresses, and hence the magnitude of the combined stresses, can be influenced by varying the blade thicknesses while maintaining the same eigenfrequencies. By shifting the maximum vibratory stresses farther away from the maximum static stresses, the combined stresses can be reduced considerably, which leads to improved HCF tolerance.

Optimal turbine blade design enabled by auxetic honeycomb

2020 ◽  
Vol 29 (12) ◽  
pp. 125004 ◽  
Author(s):  
Aniket Pal ◽  
Katia Bertoldi ◽  
Minh Quan Pham ◽  
Megan Schaenzer ◽  
Andrew J Gross
Keyword(s):  
Turbine Blade ◽  
Blade Design ◽  
Turbine Blade Design

scholarly journals Large-scale wind turbine blade design and aerodynamic analysis

2011 ◽  
Vol 57 (5) ◽  
pp. 466-472 ◽  
Author(s):  
TongGuang Wang ◽  
Long Wang ◽  
Wei Zhong ◽  
BoFeng Xu ◽  
Li Chen
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Large Scale ◽  
Wind Turbine Blade ◽  
Blade Design ◽  
Aerodynamic Analysis ◽  
Turbine Blade Design

Wind Turbine Blade Design and Analysis With Tubercle Technology

2012 ◽  
Author(s):  
Sourabh Kumar ◽  
R. S. Amano
Keyword(s):  
Wind Turbine ◽  
Flow Pattern ◽  
Turbine Blade ◽  
Turbine Blades ◽  
Cad Model ◽  
Blade Design ◽  
Cfd Analysis ◽  
Straight Blade ◽  
Turbine Blade Design ◽  
Insight Into

The objective of this project is to construct a CAD model for tubercle wind turbine. Once the model is developed a complete CFD analysis of the flow pattern around the wind turbine will be carried out. The main objective of the study is to analyze and compare the performance of the tubercle wind turbine with the usual wind turbine. The power developed by both the turbine blades can be compared to support the use of tubercle. The tubercles are very effective for increasing the lift without stalling. The main objective of this project is to study the aerodynamic advantages of tubercle turbine blade. The effort will be to compare the obtained results with the straight blade of the same airfoil. This will provide insight into the advantages of using the tubercle blade. This technology being new the study is done numerically to study the overall effect of the tubercle.

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