Results 41 to 50 of about 21,475 (198)

DSMC modeling of rarefied ionization reactions and applications to hypervelocity spacecraft reentry flows

open access: yesAdvances in Aerodynamics, 2020
The DSMC modeling is developed to simulate three-dimensional (3D) rarefied ionization flows and numerically forecast the communication blackout around spacecraft during hypervelocity reentry.
Ming Fang   +4 more
doaj   +1 more source

Transient spray combustion characteristics in a gas-liquid pintle rocket engine under acoustic excitation. [PDF]

open access: yesSci Rep
In order to investigate the acoustic oscillation characteristics of gas–liquid pintle rocket engines and elucidate the path by which spray combustion process provides energy to the combustor pressure oscillation, a LOX/GCH4 pintle engine with rectangular
Jin X, Zhu C, Chen D, Zhang Z.
europepmc   +2 more sources

Study on Flow Mechanism of a Morphing Supercritical Airfoil

open access: yesShock and Vibration, 2021
In order to maintain the best performance in flight, a new concept, morphing aircraft, has been proposed, which can change the real-time aerodynamic characteristics under different flight conditions.
Yuanjing Wang   +4 more
doaj   +1 more source

Study on the Aerothermoelastic Characteristics of a Body Flap Considering the Nozzle–Jet Interference

open access: yesAerospace, 2023
A body flap/RCS-integrated configuration is often used to achieve pitch trimming and controlled flight in near space for hypersonic vehicles. Under the high temperature and pressure load induced by the expansion wave at the nozzle exit, the body flap is ...
Ruhao Hua, Qi Chen, Zhao Wan, Hao Chen
doaj   +1 more source

Aerodynamics in Cardiac CT [PDF]

open access: yesCirculation: Cardiovascular Imaging, 2013
It seems not long ago that invasive coronary angiography was considered as the undisputed diagnostic standard and management determining test for patients with ischemic heart disease. Registry data have shown that reliance on noninvasive testing for myocardial ischemia, positioned as a gatekeeper to restrict referral to the catheterization laboratory ...
Nieman, Koen, de Feijter, Pim J
openaire   +4 more sources

Accuracy analysis of gradient reconstruction on isotropic unstructured meshes and its effects on inviscid flow simulation

open access: yesAdvances in Aerodynamics, 2019
The accuracy of gradient reconstruction methods on unstructured meshes is analyzed both mathematically and numerically. Mathematical derivations reveal that, for gradient reconstruction based on the Green-Gauss theorem (the GG methods), if the summation ...
Nianhua Wang   +3 more
doaj   +1 more source

The Prediction and Correction Method of Aircraft Static Aeroelastic Effects: A Review of Recent Progress

open access: yesActuators, 2022
This paper comprehensively reviews the progress of static aeroelastic effect prediction and correction methods for aircraft, including the damage and protection of aeroelastic.
Hongtao Guo   +4 more
doaj   +1 more source

Experimental Investigation on Flow Control over a Circular Cylinder Using Antiphase Pulsed Jets

open access: yesActuators, 2023
To investigate the flow control characteristics of antiphase pulsed jet technology and explore a more efficient method to control unsteady flow with minimal impact on flow turbulence, wind tunnel experiments were conducted.
Jiaxin Pan   +5 more
doaj   +1 more source

Study on Fluid–Structure Interaction of a Camber Morphing Wing

open access: yesVibration, 2023
The influence of trailing edge deformation on the aerodynamic characteristics of camber morphing wings is an important topic in the aviation field.
Yuanjing Wang   +4 more
doaj   +1 more source

Study on the Similarity Criteria of Aircraft Structure Temperature/Stress/Dynamic Response

open access: yesJournal of Thermal Science and Technology, 2012
The performance parameters of thermal protection system are essential for the design and optimization of high-speed aircraft. The flight-ground conversion is a valid method to provide the effective support to the design of the thermal protection ...
Lei LIU   +4 more
doaj   +1 more source

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