Results 21 to 30 of about 3,890,637 (138)

Modelling & integration of advanced propulsion systems [PDF]

open access: yes, 2008
This research study focuses on the design of advanced propulsion cycles, having as primary design goal the improvement on noise emissions and fuel consumption.
Doulgeris, Georgios C.
core   +7 more sources

Research on Multi-Optimal Project of Outlet Guide Vanes of Nuclear Grade Axial Flow Fan Based on Sensitivity Analysis

open access: yesApplied Sciences, 2022
Nuclear grade axial flow fans are widely used in nuclear power plants for ventilation and heat dissipation and have the advantages of high efficiency and high flow rates.
Weiya Jin   +5 more
doaj   +1 more source

Development of a Performance-Based Design Technique for an Axial-Flow Fan Unit Using Airfoil Cascades Based on the Blade Strip Theory

open access: yesApplied Sciences
Axial-flow fans are widely used as cooling fans in the outdoor units of split-type air conditioners. The design of an axial-flow fan blade involves stacking several airfoils that can be differently designed for each spanwise section. However, the complex
Seo-Yoon Ryu   +3 more
doaj   +1 more source

Investigation of the Unsteady Flow Generated by an Axial Fan: Experimental Testing and Simulations

open access: yesInternational Journal of Rotating Machinery, 2005
The unsteady flow measurement of a large axial fan with diameter 1.829m (6 ft) has been carried out. The complex flow field generated by the fan is investigated through experimental testing and CFD/FEA simulation.
R. S. Amano   +3 more
doaj   +1 more source

Experimental Study on the Three-Dimensional Unsteady Flow Characteristics of the Counter-Rotating Axial Flow Fan

open access: yesJournal of Fluid Science and Technology, 2009
The counter-rotating axial flow fan shows that the complex flow characteristics with three-dimensional, viscous, and unsteady flow fields. For the understanding of the entire core flow in counter-rotating axial flow fan, it is necessary to investigate ...
Lee-Sang CHO, Bong-Jun CHA, Jin-Soo CHO
doaj   +1 more source

The best efficiency point of an axial fan at low-pressure conditions

open access: yesAdvances in Mechanical Engineering, 2021
In the current work, the objective is to determine the best efficiency point (BEP) of an axial fan using CFD. Analyzing the performance of the fan based upon the parameters chosen can lead to the optimal design of an axial flow fan for aerospace ...
Jose J Corona   +4 more
doaj   +1 more source

Active Turbulence Grid-Controlled Inflow Turbulence and Replication of Heat Exchanger Flow Fields in Fan Applications

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2023
A novel active turbulence grid of the Institute of Fluid Mechanics at FAU Erlangen-Nuremberg is introduced. The focus of this grid is not on basic investigations of fluid mechanics, as is usually the case with active turbulence grids, but the generation ...
Felix Czwielong, Stefan Becker
doaj   +1 more source

Passive Blowing Strategy to Enhance Aerodynamic Performance and Noise of a Hollow-bladed Axial Fan: An Experimental Study [PDF]

open access: yesJournal of Applied Fluid Mechanics
This research explores the efficacy of a passive control strategy designed to enhance the performance of an axial hollow fan. This investigation uses a dedicated experimental setup to evaluate various aspects of the fan's performance, including ...
A. Bouanik   +5 more
doaj   +1 more source

Axial Fan Blade Vibration Assessment under Inlet Cross-Flow Conditions Using Laser Scanning Vibrometry

open access: yesApplied Sciences, 2017
In thermal power plants equipped with air-cooled condensers (ACCs), axial cooling fans operate under the influence of ambient flow fields. Under inlet cross-flow conditions, the resultant asymmetric flow field is known to introduce additional harmonic ...
Till Heinemann, Stefan Becker
doaj   +1 more source

Operation Monitoring of Axial Flow Fans Based on Physics-Guided Support Vector Regression and Alarm Delay Timers

open access: yesMachines
Axial flow fans play a critical role in the safety and efficiency of industrial processes. This paper proposes an operation monitoring approach for axial flow fans based on physics-guided support vector regression and alarm delay timer.
Zheng Zhang   +4 more
doaj   +1 more source

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