Results 81 to 90 of about 9,919 (312)

NUMERICAL SIMULATION OF PERFORMANCE OF AN AXIAL TURBINE FIRST STAGE DOI 10.5028/jatm.2012.04025411

Journal of Aerospace Technology and Management, 2012
This work has presented the first stage performance at design and off-design operating points of an axial turbine, with two stages using a numerical simulation.
Vinícius Guimarães Monteiro, Edson Luiz Zaparoli, Cláudia Regina de Andrade, Rosiane Cristina de Lima   +3 more
doaj  

Harnessing Digital Microstructure for Simulation‐Guided Optimization of Permanent Magnets

Advanced Intelligent Discovery, EarlyView.
An experimental‐to‐computational workflow is presented that transforms experimental 3D focused ion beam‐scanning electron microscopy data into a simulation‐ready digital microstructure for multiphase functional materials. Using heavy‐rare‐earth‐free Nd–Fe–B magnets as a model system, the approach quantifies grain connectivity across complex secondary ...
Nikita Kulesh, Anton Bolyachkin, Hajime Nakamura, Tadakatsu Ohkubo, Hossein Sepehri‐Amin   +4 more
wiley   +1 more source

Analysis of Low Pressure Steam Turbine Diffuser and Exhaust Hood Systems [PDF]

, 2014
This thesis concerns the computational modelling of low pressure (LP) steam turbine exhaust hood flows. A test case for LP last stage blades (LSBs) with a full aerodynamic definition and an accompanying exhaust hood was developed which is representative ...
BURTON, ZOE
core  

Perspectives on the Treatment of Secondary Flows in Axial Turbines

Energy Procedia, 2017
 A review is presented of the main end-wall treatments for the secondary flows of axial turbines. This encompasses the use of axisymmetric and non-axisymmetric contoured end-walls, the use of fences, and of air injection and blowing. Experimental and numerical results show promise in all these techniques. Interest seems to be drawing towards the use of
Rona, Aldo, Kadhim, Hakim Tarteeb Kadhim
openaire   +2 more sources

EMG‐Driven Telemetry and Inference System for Fish: Pose Reconstruction and Flow Sensing

Advanced Intelligent Systems, EarlyView.
This work introduces an electromyography (EMG)‐driven telemetry framework that reconstructs body pose and infers hydrodynamic conditions in freely swimming fish. A custom 16‐channel archival system records intramuscular EMG, enabling deep‐learning models to decode joint kinematics, classify flow regimes, and reveal channel‐efficient sensing strategies.
Rahdar Hussain Afridi, Waqar Hussain Afridi, Muhammad Hamza, Ahsan Tanveer, Mingxin Wu, Xingwen Zheng, Liang Li, Guangming Xie   +7 more
wiley   +1 more source

Potential of power recovery of a subsonic axial fan in windmilling operation [PDF]

, 2013
During the last decades, efforts to find efficient green energy solutions have been widely increased in response to environmental concerns. Among all renewable energies, this paper is focused on wind power generation. To this end, a windmilling axial fan
Challas, Florent, Binder, Nicolas, Carbonneau, Xavier, Courty-Audren, Suk-Kee   +3 more
core  

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source

An investigation of secondary flow in a turbine blade with end wall profiling [PDF]

, 1999
Secondary flows have been long recognised as a significant form of loss mechanism in turbomachinery. They have a major influence over the performance of the blade rows since they cause unsteadiness in the mainstream flow.
Jayaraman, Punitha
core  

Modeling Turbulent Flow in Stirred Tanks with CFD: The Influence of the Modeling Approach, Turbulence Model and Numerical Scheme [PDF]

, 2004
Single phase turbulent flow in a tank stirred by a down- and an up-pumping pitched blade turbine has been simulated using CFD. The effect of the modeling approach, discretization scheme and turbulence model on mean velocities, turbulent kinetic energy ...
Fletcher, David F., Aubin, Joelle, Xuereb, Catherine   +2 more
core   +1 more source

Aerodynamic optimization of multi-stage axial turbine based on pre-screening strategy and directly manipulated free-form deformation

Case Studies in Thermal Engineering
To address the challenges of multiple design variables, long evaluation times, and poor global search capability of traditional surrogate-assisted algorithms that rely on the complete substitution of accurate function evaluations in the turbine ...
Yixuan Guo, Jiang Chen, Yi Liu, Hang Xiang, Mingsheng Chen   +4 more
doaj   +1 more source