Results 121 to 130 of about 85,463 (302)

Numerical Methods for Chemically Reacting Fluid Flow Computation under Low-Mach Number Approximation [PDF]

, 2006
Toshiyuki Arima
openalex   +1 more source

The Statistics of Supersonic Isothermal Turbulence

, 2007
We present results of large-scale three-dimensional simulations of supersonic Euler turbulence with the piecewise parabolic method and multiple grid resolutions up to 2048^3 points. Our numerical experiments describe non-magnetized driven turbulent flows
Alexei G. Kritsuk, Armi L., de Karman T., Kaplan S. A., Kolmogorov A. N., Kolmogorov A. N., Larson R. B., Michael L. Norman, Miura A., Moyal J. E., Obukhov A. M., Padoan P., Paolo Padoan, Passot T., Rick Wagner   +14 more
core   +1 more source

Hunting, but not outdoor recreation, modulates behavioural tolerance to human disturbance in Alpine marmots Marmota marmota

Wildlife Biology, EarlyView.
Humans are often perceived as predators by free‐living animals, and thus, even non‐consumptive human activities such as outdoor recreation may trigger behavioural and physiological responses, often with negative consequences on individual fitness and population persistence.
Friederike Zenth, Chiara Giari, Elena Morocutti, Ilse Storch, Daniel T. Blumstein, Andrea Corradini, Davide Righetti, Dominik Trenkwalder, Luca Corlatti   +8 more
wiley   +1 more source

Assessment of Turbulence Models for Cylinder Flow Aeroacoustics

Aerospace
Numerical simulations are performed for flows over a circular cylinder at a Reynolds number ranging from 150 to 5000, and Mach number of 0.2, to assess the predictive capability of URANS and hybrid RANS/LES for acoustic waves generation and propagation ...
Xiao Wang, Shanti Bhushan, Adrian Sescu, Edward Luke, Bukhari Manshoor, Yuji Hattori   +5 more
doaj   +1 more source

Investigating Spatial‐Temporal Optical Emission Spectroscopy of Unstable Positive Leaders in Long Sparks Under Atmospheric Pressure

High Voltage, EarlyView.
ABSTRACT This study explores exciting state species and reaction pathways in positive leaders to better understand the breakdown mechanisms of long air gap discharges and natural lightning. Emission spectra from an unstable positive leader in a 1 m rod‐plate air gap under switching impulse voltages were observed, spanning 300–800 nm.
Hengxin He, Yubin Huang, Wanxia Zhang, Chang Liu, Xiuyuan Yao, Yu Ying, Weijiang Chen   +6 more
wiley   +1 more source

A numerical study of the effects of wind tunnel wall proximity on an airfoil model [PDF]

A procedure was developed for modeling wind tunnel flows using computational fluid dynamics. Using this method, a numerical study was undertaken to explore the effects of solid wind tunnel wall proximity and Reynolds number on a two-dimensional airfoil ...
Potsdam, Mark, Roberts, Leonard
core   +1 more source

Multiterminal High‐Voltage Direct Current Projects: A Comprehensive Assessment and Future Prospects

High Voltage, EarlyView.
ABSTRACT Multiterminal high‐voltage direct current (MT‐HVDC) systems are an important part of modern power systems, addressing the need for bulk power delivery and efficient renewable energy integration. This paper provides a comprehensive overview of recent advances in MT‐HVDC technology, including launched projects and ongoing initiatives.
Mohammad Hossein Mousavi, Hassan Moradi, Kumars Rouzbehi, Vijay K. Sood   +3 more
wiley   +1 more source

Hydrodynamical Simulations of Proton Ingestion Flashes in Type I X-Ray Bursts

The Astrophysical Journal
We perform the first multidimensional fluid simulations of thermonuclear helium ignition underneath a hydrogen-rich shell. This situation is relevant to Type I X-ray bursts on neutron stars that accrete from a hydrogen-rich companion.
Simon Guichandut, Michael Zingale, Andrew Cumming   +2 more
doaj   +1 more source

Numerical Study on Aerodynamic Characteristics of Parachute Models for Future Jupiter Exploration

Space: Science & Technology
At present, the key technical researches are carried out for the future exploration missions to dense atmosphere planets such as Jupiter. As a necessary aerodynamic decelerator for planetary exploration missions with dense atmosphere, parachutes face ...
He Jia, Wenlong Bao, Wei Rong, Li Yu, Xiaopeng Xue, Jianhui Fan   +5 more
doaj   +1 more source

Effects of eddy shocklets on the segregation and evaporation of droplets in highly compressible shear layers

AIP Advances, 2019
Numerical studies of droplet-laden spatially developing shear layers are conducted with a high convective Mach number (Mc = 1.0), in which a high-order hybrid weighted essentially nonoscillatory scheme is used for the turbulence as well as shock ...
Zhaoxin Ren, Bing Wang, Fan Zhang, Longxi Zheng   +3 more
doaj   +1 more source