The horizontal axis wind turbine (HAWT) design with low speed requires blade geometry selection. analysis uses the potential flow panel method and integral boundary layer formulation to analyze around airfoil. element momentum (BEM) theory has an aerodynamic coefficient value along blade. Power calculates model shear pressure at each This research aims determine rotor based on performance, incl...

Delay in the onset of static stall via passive vortex generators (VGs) results more efficient equipment. Nevertheless, most studies VGs are conducted on wind turbine blades rather than other turbomachinery devices like axial fan blades. This study is feasibility research to see whether aerodynamic performance improves presence VGs. Therefore, VGs' effect a blade with an elliptical profile havin...

Centrifugal compressors are a key piece of equipment for modern production. Among the components of the centrifugal compressor, the impeller is a pivotal part as it is used to transform kinetic energy into pressure energy. Blade crack condition monitoring and classification has been broadly investigated in the industrial and academic area. In this research, a pressure pulsation (PP) sensor arra...

High cycle fatigue (HCF) cracks generated by compressor blade vibrations are a common source of failure in gas turbine engines. Current methods for crack detection are costly, time consuming, and prone to errors. In-situ blade vibration detection would help operators avoid critical engine speeds, and help infer the presence of cracks via a change in the mode of a blade. Blade vibrations can be ...

The Blade server enterprise has remained the firmest developing sector of the global server enterprise aimed at numerous ages and the tendency is likely to remain conferring to commerce investigators. IDC described in late August, 2007 that server blade enterprise advancement persistently accelerated by 36.7% growth yearly with clients increasing their blade distributions and retailers intensif...

OBJECTIVES The present study was conducted to evaluate the optimal method of enhancing the bond strength of a composite resin to the facial surface of the primary anterior stainless steel crowns using various surface treatments namely Nd: YAG laser surface treatment, sandblasting , alloy primer application and no surface treatment. STUDY DESIGN The study sample consisted of 60 primary anterio...

Turbodrill is a type of hydraulic axial turbomachinery which has a multistage blade consisting of stators and rotors. In this paper, a turbodrill blade that can be applied in crystallized section under high temperature and pressure conditions is developed. On the basis of Euler equations, the law of energy transfer is analyzed and the output characteristics of turbodrill blade are proposed. Mor...

Magnetically suspended left ventricular assist devices have only one moving part, the impeller. The impeller has absolutely no contact with any of the fixed parts, thus greatly reducing the regions of stagnant or high shear stress that surround a mechanical or fluid bearing. Measurements of the mean flow patterns as well as viscous and turbulent stresses were made in a shaft-driven prototype of...

Abstract. In this article the aeroelastic loads on a 10 MW turbine in response to extreme events (low-level jet, shear, veer and turbulence intensity) selected from year-long large-eddy simulation (LES) site at North Sea are evaluated. These generated with high-fidelity LES wind model fed into an tool using two different aerodynamic models: based blade element momentum (BEM) free vortex wake mo...

This paper describes the feasibility analysis of an innovative, extensible blade technology. The blade aims to significantly improve the energy production of a wind turbine, particularly at locations with unfavorable wind conditions. The innovative ‘smart’ blade will be extended at low wind speed to harvest more wind energy; on the other hand, it will be retracted to its original shape when the...