Results 31 to 40 of about 92,383 (309)

Effect of Wavy Leading Edges on Airfoil Trailing-Edge Bluntness Noise

open access: yesAerospace, 2023
Among the several noise-generation mechanisms of airfoil self-noise, trailing-edge bluntness noise is an important noise source, which is caused by the vortex shedding at blunt trailing edges.
Yudi Xing   +4 more
doaj   +1 more source

Leading-edge vortex shedding from rotating wings [PDF]

open access: yesFluid Dynamics Research, 2014
The paper presents a numerical investigation of the leading-edge vortices generated by rotating triangular wings at Reynolds number $Re=250$. A series of three-dimensional numerical simulations have been carried out using a Fourier pseudo-spectral method with volume penalization.
Kolomenskiy, Dmitry   +2 more
openaire   +3 more sources

Influence of Area Distribution Along the Span Direction on Flapping Wing Aerodynamics in Hover Based on Numerical Modeling Analysis

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This study performed a numerical investigation to explore the effect of span-wise area distribution on flapping wing aerodynamics in hovering configuration using an in-house developed flow solver.
Guilin Wu, Shuanghou Deng, Qingxi Li
doaj   +1 more source

Numerical investigation on characteristics of separation vortices between blades of two-dimensional cascade

open access: yesNihon Kikai Gakkai ronbunshu
In this study, LES calculations by OpenFOAM were performed using five blade models with different blade thicknesses (original, quarter, half, 3-quarters, and filled) to investigate the characteristics of separated and reattaching flow between blades of ...
Kosuke SETO   +5 more
doaj   +1 more source

A species-transport model for circulation in a leading-edge vortex

open access: yesAdvances in Aerodynamics, 2022
In this study, we propose a model to predict circulation growth along the span of a rotating wing, in which circulation transport is represented as species transport.
Clara Giner-Morency, Jaime G. Wong
doaj   +1 more source

Leading-Edge Vortex Characteristics of Surging-Translating Flexible Wings

open access: yesHavacılık ve Uzay Teknolojileri Dergisi, 2023
This study experimentally investigates the flow fields around rigid and chordwise-flexible wings,performing a rectilinear translational motion starting from rest.
Mahdi Yazdanpanah, Mustafa Perçin
doaj  

CORIOLIS KEEPS LEADING EDGE VORTEX IN PLACE [PDF]

open access: yesJournal of Experimental Biology, 2009
![Figure][1] Flies may not have the nicest of personal habits, but no one can fail to be amazed by their remarkable agility as they twist, turn and hover in the air. And their manoeuvrability has not escaped the notice of aeronautic engineers; they'd love to design a minute flying ...
openaire   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

open access: yesMolecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice   +16 more
wiley   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

open access: yesMolecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung   +17 more
wiley   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

open access: yesFEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli   +8 more
wiley   +1 more source

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