Results 11 to 20 of about 88,287 (219)

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

Internal Aerodynamic Performance Enhancement for Aircraft with High Maneuver by Designing a Distributed Submerged Inlet

open access: yesApplied Sciences, 2023
Submerged inlet has been widely used in UAVs and cruise missiles due to its good stealth characteristics, but it also brings the disadvantage of poor aerodynamic characteristics.
Junyao Zhang, Baigang Mi
doaj   +1 more source

Jet Mixings of Alternating-Lobe Nozzles under Pumping Air Intake and Stamping Air Intake Conditions

open access: yesAerospace, 2022
Jet mixings of a coplanar alternating-lobe nozzle (CoALN), scarfing alternating-lobe nozzle (ScALN), sword alternating-lobe nozzle (SwALN), and sword and chevron alternating-lobe nozzle (SwChALN) were numerically investigated using three different far ...
Zhiqiang Sheng   +3 more
doaj   +1 more source

AERODYNAMIC STUDIES IN THE STATIC COMPONENTS OF A CENTRIFUGAL COMPRESSOR STAGE [PDF]

open access: yesJournal of Mechanical Engineering and Sciences, 2011
Aerodynamic studies in the static components of a centrifugal compressor stage were conducted using the computational fluid dynamics solver FLUENT. For the simulation study, a typical centrifugal compressor stage geometry with a flow coefficient of 0.053
K. Srinivasa Reddy   +2 more
doaj  

Study on Installing Deflector in Exhaust Hood of Steam Turbine Based on Quadratic Regressive Orthogonal Experiment

open access: yes发电技术, 2019
A combined numerical simulation is conducted to couple fluid flow between exhaust hood and last-stage blades of a 600 MW steam turbine using the computational fluid dynamics software CFX.
Lihua CAO, Kai ZHOU, Heyong SI
doaj   +1 more source

Prepositive Synergistic Bulge Design for Improving Aerodynamic Performance of Submerged Inlet

open access: yesAerospace, 2023
A submerged inlet has good stealth characteristics and a low external drag, but it also has the disadvantage of low internal flow efficiency. In view of this, a new efficiency enhancement method based on the prepositive synergistic bulge of the inlet’s ...
Xuan Bai, Baigang Mi
doaj   +1 more source

Numerical study on variable area afterburner with wide bypass ratio

open access: yesXibei Gongye Daxue Xuebao
To investigate the impact of variable geometry components on the performance of afterburner, the afterburner of triangular variable connotation components was designed, and the effects of the different state points and duct ratio on the total pressure ...
Ma Yinzhang   +3 more
doaj   +1 more source

Performance Enhancement of a Centrifugal Compressor by Designing a Tandem Cascade Diffuser

open access: yesEnergies, 2022
The performance of a vane diffuser plays an important role in transforming the high kinetic energy into pressure energy at the impeller outlet of a centrifugal compressor. In this study, the performance enhancement of a centrifugal compressor is achieved
Shuo Zhang   +4 more
doaj   +1 more source

Correlation between total pressure losses of highly loaded annular diffusers and integral stage design parameters

open access: yesJournal of the Global Power and Propulsion Society, 2018
Diffusers convert kinetic flow energy into a rise in static pressure. This pressure recovery is the primary aerodynamic design objective for exhaust gas diffusers in power-generating steam and gas turbines. The total pressure loss is an equally important
Dajan Mimic   +2 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

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