Results 31 to 40 of about 3,507,747 (248)

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

IEEE 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

Reduced dimension modeling of leading edge turbulent interaction noise [PDF]

, 2014
A computational aeroacoustics approach is used to model the effects of real airfoil geometry on leading edge turbulent interaction noise for symmetric airfoils at zero angle of attack.
Zhang, Xin, Node-Langlois, Thomas, Thomas Node-Langlois, James R. Gill, Phillip Joseph, Gill, James, Xin Zhang, Joseph, Phillip F., Joseph, Phillip   +8 more
core   +1 more source

Numerical Investigation of the Aerodynamic Properties of a Flying Wing Configuration [PDF]

, 2012
The numerical investigations of a generic UCAV configuration are presented. These investigations are part of the DLR internal project UCAV-2010. Compressible speed conditions are considered and presented.
Andreas Schutte, Martin Rein, Rein, Martin, Kerstin Huber, Huber, Kerstin Claudie, Schütte, Andreas   +5 more
core   +1 more source

Leading-edge vortex dynamics on plunging airfoils and wings [PDF]

, 2022
The vortex dynamics of leading-edge vortices on plunging high-aspect-ratio (AR = 10) wings and airfoils were investigated by means of volumetric velocity measurements, numerical simulations, and stability analysis in order to understand the deformation ...
Gursul, Ismet, Wang, Zhijin, Gao, An-Kang, Gao, Ankang, Cantwell, Chris, Sherwin, Spencer, Cantwell, Chris D., Sherwin, Spencer J., Son, Onur, Wang, Zhijin; id_orcid, Gursul, Ismet; id_orcid, S.J. Sherwin, C.D. Cantwell, I. Gursul, Z. Wang, O. Son, A.-K. Gao   +16 more
core   +1 more source

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

Nihon 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, Koji IWANO, Yasumasa ITO, Yasuhiko SAKAI, Sho KOSAKA, Kenji YOSHIDA   +5 more
doaj   +1 more source

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

Advances 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

The impact of transport across the polar vortex edge on Match ozone loss estimates [PDF]

, 2008
The Match method for the quantification of polar chemical ozone loss is investigated mainly with respect to the impact of the transport of air masses across the vortex edge.
R. Müller, Müller, Rolf, Möbius, Tanja, Müller, R., Grooß, J.-U., J.-U. Grooß, Steinhorst, Hildegard-Maria, Konopka, P., Engel, Andreas, H.-M. Steinhorst, Volk, C.-Michael, Volk, C. M., Konopka, Paul, Engel, A., A. Engel, C. M. Volk, Möbius, T., Steinhorst, H.-M., Grooß, Jens-Uwe, P. Konopka, T. Möbius   +20 more
core   +2 more sources

On the effects of leading edge vortex generators on an OA209 airfoil [PDF]

, 2009
Leading edge vortex generators have been found to significantly increase the aerodynamic performance of an airfoil under dynamic stall conditions. However, the principle of operation of these devices is still unclear.
Gardner, Anthony, Heine, Benjamin, Mulleners, Karen, Mai, Holger   +3 more
core  

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Leading-Edge Vortex Characteristics of Surging-Translating Flexible Wings

Havacılık 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