Results 1 to 10 of about 430,944 (120)

Improving the efficiency of a serpentine inlet duct by using of Blowing Jet Vortex Generators flow control technique [PDF]

open access: yesمجله مدل سازی در مهندسی, 2018
In this research, aerodynamic performance of a double s-shaped serpentine inlet duct is numerically investigated by using of blowing Jet vortex generators flow control technique.
iman Maghsoudi   +2 more
doaj   +1 more source

Potential Propulsive and Aerodynamic Benefits of a New Aircraft Concept: A Low-Speed Experimental Study

open access: yesAerospace, 2023
The aerodynamic design of a new aircraft concept was investigated through subsonic wind-tunnel testing using 1:28-scale powered models. The aircraft configuration integrates a box-wing layout with engines located at the rear part of the fuselage ...
Pedro D. Bravo-Mosquera   +2 more
doaj   +1 more source

Numerical Investigation of a Vortex Diverter Designed for Improving the Performance of the Submerged Inlet

open access: yesAerospace, 2023
The submerged inlet exhibits good stealth characteristics and lower drag, but it has a low total pressure recovery coefficient and high distortion rate, which limits its widespread application. This paper proposes a vortex diverter aimed at enhancing the
Junyao Zhang, Hao Zhan, Baigang Mi
doaj   +1 more source

Comparing energy nexus efficiency of Energy Recovery Inc (ERI) over turbopumps for cost saving of 12.6 MLD SWRO based desalination plant

open access: yesEnergy Nexus, 2022
This study of Reverse Osmosis plant operation shows the energy efficiency of Energy Recovery Inc. (ERI) is around 98.57 %, while the energy efficiency of Turbo pumps is around 82.5 % Recovered from the rejected water pressure.
Pawan Kumar, Pankaj Gupta, Satish Kumar
doaj   +1 more source

Analysis of the influence of the curvature, сonstriction of S-chaped channel and flight conditions on the efficiency of the bucket inlet device

open access: yesАвіаційно-космічна техніка та технологія, 2022
When creating a modern aircraft, the principle of optimal integration of the power plant and the aircraft is used to ensure the maximum target function, determined by its functional purpose.
Oleg Zhornik   +3 more
doaj   +1 more source

Study on Aerodynamic Design of the Front Auxiliary Inlet

open access: yesAerospace, 2023
Submerged inlets have been widely used in advanced aircraft due to their excellent stealth characteristics, but they also suffer from poor aerodynamic performance.
Junyao Zhang, Hao Zhan, Baigang Mi
doaj   +1 more source

Effects of Configuration and Slot Angle of the Bleed System on the Performance of Hypersonic Inlet

open access: yes气体物理, 2023
The numerical simulation of a typical two-dimensional hypersonic inlet was carried out to study the effects of configuration and slot angle of the bleed system on the performance of hypersonic inlet.
Hao-Yu CHEN, He-Xia HUANG, Hui-Jun TAN
doaj   +1 more source

Daily work pressure and task performance: The moderating role of recovery and sleep

open access: yesFrontiers in Psychology, 2022
Whereas previous research has focused on the link between (mental and physical) workload and task performance, less is known about the intervening mechanisms influencing this relationship.
Jørn Hetland   +5 more
doaj   +1 more source

Study on Three-Dimensional Inner Flow Field Characteristics and Performance of Scramjet [PDF]

open access: yesMATEC Web of Conferences, 2019
The three-dimensional characteristics and performance of the flow field in the inlet of the scramjet engine were numerically simulated by CFD software. The flow characteristics in the width direction of the inlet and the influence of the aspect ratio on ...
Gao Feng, Zhao Jie, Zhang Cheng Tao
doaj   +1 more source

Effects of Aerobic Exercise Intensity on Post-exercise Blood Pressure and Cardiovascular Function in Prehypertensive Men in Their 30s [PDF]

open access: yesCheyuk gwahag yeon-gu, 2022
PURPOSE Blood pressure (BP) in hypertensive individuals is reduced by the accumulation of post-exercise hypotension (PEH) induced by a long period of training.
Seok-Jun Hong   +2 more
doaj   +1 more source

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