Results 51 to 60 of about 542,523 (285)

Numerical and Experimental Vibration Analysis of a Steam Turbine Rotor Blade

open access: yesTehnički Glasnik, 2021
Damage to the rotor blade of a steam turbine is a relatively common problem and is one of the leading causes of sudden and unplanned shutdowns of a steam turbine.
Marko Katinić, Marko Ljubičić
doaj  

Numerical study on the impacts of sand particles on blade erosion in a transonic fan rotor [PDF]

open access: yesAIP Advances
In a real-world environment with high dust and high sand concentrations, continuous ingestion of solid particles results in surface roughness on the fan rotor blade of aero-engines.
Kunbin Jin   +9 more
doaj   +1 more source

Mode localization in linear and periodically time‐varying mistuned wind rotor

open access: yesWind Energy, 2021
Rotor blades are the most important and most expensive part of a wind turbine; their dynamic behavior is of great significance for maintenance planning and safe operation.
Xin Guo   +3 more
doaj   +1 more source

CFD Simulation of Co-Planar Multi-Rotor Wind Turbine Aerodynamic Performance Based on ALM Method

open access: yesEnergies, 2022
Considering requirements such as enhanced unit capacity, the geometric size of wind turbine blades has been increasing; this, in turn, results in a rapid increase in manufacturing costs.
Yuan Zhang   +4 more
doaj   +1 more source

Experimental Investigation of Microbubble Evolution in the Liquivac Multiphase Flow Pump

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This paper aims to experimentally investigate the mechanisms of microbubble characteristics evolution within an axial pump. The findings will aid in assessing the pump performance by identifying the range of bubble sizes and comparing them with the threshold size (< 300 μm). This study also provides evidence supporting the use of such pumps as
Hamad FA   +4 more
wiley   +1 more source

Controlling Aggregation‐Induced Emission by Sterics in Nitrogen–Boron–Nitrogen (NBN)‐Doped Tetraphenylethylene‐Like Molecular Propellers

open access: yesChemistry – A European Journal, EarlyView.
Nitrogen–boron–nitrogen (NBN)‐substituted molecular propellers are presented as structural framework for aggregation induced emission (AIE) applications. Steric hindrance is revealed to steer maximum‐AIE behavior, leading to refined control over assembly‐induced luminescence.
Nico Groß   +4 more
wiley   +1 more source

Evaluation of Aerodynamic Coefficients of High Temperature Gas Turbine Cascade of Cooled Blade [PDF]

open access: yesEngineering and Technology Journal, 2011
The aerodynamic force coefficients of five linear cascade of existing film cooling turbine blades are evaluated numerically. The blade is geometrically identical to the first rotor blades of the high pressure (HP) turbine of the F-100-PW-220 military ...
Haider L. Aneed, Assim H Yousif
doaj   +1 more source

Aerodynamic and acoustic analysis of helicopter main rotor blade tips in hover [PDF]

open access: yes, 2016
Purpose: The design of main rotor blade tips is of interest to helicopter manufactures since the tip details affect the performance and acoustics of the rotor. The paper aims to discuss this issue.
Barakos, George   +4 more
core   +1 more source

Design of HAWT Rotor for Non‐Uniform Inflow Conditions: A Theoretical and Experimental Approach for Shear Flow

open access: yesEnergy Science &Engineering, EarlyView.
This paper aims to provide a robust design approach for HAWTs operating in shear flow. This study fills a critical research gap by integrating BEM and vortex theories for blade design in non‐homogeneous inflow conditions. The authors of the paper made an effort to develop and test an experimentally unsophisticated model of a turbine working in shear ...
Agnieszka Dorota Woźniak   +2 more
wiley   +1 more source

Wind Resource Evaluation With Atmospheric Stability Across Different Surface Types

open access: yesEnergy Science &Engineering, EarlyView.
Wind resource evaluation with atmospheric stability across different surface types. ABSTRACT This study investigates the influence of atmospheric stability on wind resource assessment across various surface conditions, focusing on wind shear and prevailing wind direction as key analytical parameters.
Zejia Hua, Wei Tao, Guanjun Wang
wiley   +1 more source

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