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搜索结果: 1-15 共查到工学 turbulence相关记录51条 . 查询时间(0.093 秒)
Turbulence gets eagles up to speed     湍流  老鹰  速度       2023/5/24
Most sensible air travelers dread turbulence. A little atmospheric hiccup can shake airplanes, rattle nerves and spill beverages. A Cornell-led collaboration has found that birds don’t mind at all.
IUTAM Symposium on Computational modelling of instabilities and turbulence in separated two-phase flows.
Direct numerical simulations of scalar fields produced by uniform and line sources in channel flow are used as the basis for examining the accuracy of random flight and closure models in predicting tu...
Acoustic sounding (SODAR) data collected in convective conditions were analysed to estimate high order statistics of the vertical velocity in the lower half of the Convective Boundary Layer (CBL). Li...
The present study analyzes the low frequency fluctuations of the magnetic and electric fields prior to the earthquake with magnitude M.6.3 on April 6, 2009, in the Abruzzi region in Italy. This includ...
Signals from very low frequency (VLF)/ low frequency (LF) transmitters recorded on the ground station at Petropavlovsk-Kamchatsky and on board the French DEMETER satellite were analyzed for the Simush...
A simulation-based optimization procedure to design control laws for energy extraction from realistic turbulence was developed, leading to about 36% average energy savings for a ‘bird-sized’ glider...
Birds frequently use the energy present in atmospheric currents to conserve their energy while flying. Although energy in the form of thermal updrafts is routinely used by pilots of full-scale and m...
Members participate in a network of international collaboration and exchange between industry and research. ERCOFTAC Members have free and full access to the unique ERCOFTAC QNET Knowledge Base Wiki....
Theory of turbulence at small scales plays a fundamental role in mo deling turbulence and in retrieving information from physical measurements of turbulent flows. A systematic metho dology based on di...
It is often desirable to study simulated turbulent flows at steady state even if the flow has no inherent source of turbulence kinetic energy. Doing so requires a numerical forcing scheme and various ...
Significant effort has been placed on the development of surfaces which reduce the amount of drag experienced by a fluid as it passes over the surface. Alterations to the fluid itself, as well as the ...
The exact governing equations of fluid dynamics are too computationally expensive to solve on a computer for practical applications. Hence, it is currently not possible to analytically describe the be...
Solving the Navier-Stokes equations using direct numerical simulation (DNS) is computationally impractical, especially at high Reynolds numbers. Recent technological advances in supercomputing have pa...
Turbulent flows over AS240 and NACA4412 airfoil were simulated numerically using a two-equation turbulence model named k-ξ model. The predictions of velocity profiles and the pressure coefficient of a...

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