Results 31 to 40 of about 286,670 (292)

Investigation of novel propulsion systems – the exoskeletal engine concept. Part II [PDF]

INCAS Bulletin, 2011
The exoskeletal engine represents a relatively new concept in the world of propulsion systems. It is a drum-rotor engine concept in which conventionally heavy shafts and discs are eliminated and replaced by rotating casings that support the blades in ...
Iulian JUHASZ, Daniel CRUNTEANU
doaj   +1 more source

Scaling Method of the Rotating Blade of a Wind Turbine for a Rime Ice Wind Tunnel Test

Energies, 2019
In order to research the law of rime ice accretion on different scaling blades surface, a new rime ice scaling method was proposed in this research. According to previous research, there are three kinds of ice types on blade surfaces: rime ice, glaze ice
Yan Li, Ce Sun, Yu Jiang, Fang Feng
doaj   +1 more source

A numerical investigation of the effects of blade’s geometric parameters on the power consumption of the twin-blade planetary mixer

Advances in Mechanical Engineering, 2016
Blades act as key components for twin-blade planetary mixer; their geometric parameters (blade–blade clearance and helical angle) and two different rotating modes (counter-rotating mode and co-rotating mode) were investigated numerically via commercial ...
Jian Liang, Xiaobin Zhan, Yili Yang, Xiwen Li, Tielin Shi   +4 more
doaj   +1 more source

Hydrocarbon Fuel Flow and Heat Transfer Investigation in Rotating Channels

Energies, 2023
Ram air turbines are used in the power generation systems of hypersonic vehicles, which can address the problem of the high power consumption of weapon systems.
Mengqiang Dong, Hongyan Huang
doaj   +1 more source

Water washing of axial flow compressors: numerical study on the fate of injected droplets [PDF]

E3S Web of Conferences, 2020
In turbomachinery applications blade fouling represents a main cause of performance degradation. Among the different techniques currently available, online water washing is one of the most effective in removing deposit from the blades. Since this kind of
Agati Giuliano, Di Gruttola Francesca, Gabriele Serena, Simone Domenico, Venturini Paolo, Borello Domenico   +5 more
doaj   +1 more source

Behavior of the Blade Tip Vortices of a Wind Turbine Equipped with a Brimmed-Diffuser Shroud

Energies, 2012
To clarify the behavior of the blade tip vortices of a wind turbine equipped with a brimmed-diffuser shroud, called a “Wind-Lens turbine”, we conducted a three-dimensional numerical simulation using a large eddy simulation (LES ...
Takanori Uchida, Yuji Ohya, Yuya Hata, Shuhei Takahashi, Takashi Karasudani   +4 more
doaj   +1 more source

Investigation of novel propulsion systems – the exoskeletal engine concept. Part I [PDF]

INCAS Bulletin, 2010
The exoskeletal engine represents a relatively new concept in the world of propulsion systems. It is a drum-rotor engine concept in which conventionally heavy shafts and discs are eliminated and replaced by rotating casings that support the blades in ...
Iulian JUHASZ, Daniel CRUNŢEANU
doaj   +1 more source

Integration of CFD tools in aerodynamic design of contra-rotating propellers blades [PDF]

, 2011
A strategy for Contra-Rotating Open Rotors blades design is presented. It is based on several analytical or CFD tools with increasing levels of accuracy. A preliminary design is made with a lifting-line code. These first geometries are then validated and
Béchet, Sylvain, Negulescu, Camil A., Chapin, Vincent, Simon, Frank   +3 more
core  

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Variation in Flow Characteristics and Power Performance Due to Axial Distance Optimization in the Design of Counter-Rotating Tidal Turbines

Energies
Counter-rotating turbines, designed to enhance the performance efficiency of tidal turbines, exhibit variable operational characteristics depending on the axial distance between the front and rear blades.
Haechang Jeong, Changjo Yang
doaj   +1 more source