搜索结果: 1-15 共查到“工学 turbulence”相关记录51条 . 查询时间(0.124 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
IUTAM Seminar Calculation model Unstable Turbulent separation Two phase flow
2017/12/13
IUTAM Symposium on Computational modelling of instabilities and turbulence in separated two-phase flows.
On the physical accuracy of scalar transport modeling in inhomogeneous turbulence
physical accuracy scalar transport modeling inhomogeneous turbulence
2016/5/18
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...
Investigations on convective boundary layer turbulence using SODAR data
convective boundary layer acoustic sounding turbulence
2015/9/16
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...
Extremely low frequency plasma turbulence recorded by the DEMETER satellite in the ionosphere over the Abruzzi region prior to the April 6, 2009, L’Aquila earthquake
ionosphere turbulence earthquake
2015/8/24
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...
Ionospheric turbulence from ground-based and satellite VLF/LF transmitter signal observations for the Simushir earthquake (November 15, 2006)
VLF/LF signal propagation Eartquake precursors
2015/8/24
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...
THEORETICAL AND EXPERIMENTAL INVESTIGATION OF ENERGY EXTRACTION FROM ATMOSPHERIC TURBULENCE
Atmospheric turbulence Gust soaring Energy extraction
2015/6/18
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...
欧洲流体湍流及燃烧研究协会（European Research Community On Flow, Turbulence And Combustion ）
欧洲流体湍流及燃烧研究协会 燃烧
2014/12/29
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....
A Study on Small Scale Intermittncy Using Direct Numerical Simulation of Turbulence
A Study on Small Scale Intermittency Direct Numerical Simulation Turbulence
2014/10/24
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...
Numerical Forcing of Horizontally-Homogeneous Stratified Turbulence
Numerical Forcing Horizontally-Homogeneous Stratified Turbulence
2014/10/23
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 ...
Simulations of Turbulence over Superhydrophobic Surfaces
Turbulence Superhydrophobic Surfaces
2014/10/23
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 ...
Development of an Oriented-Eddy Collision Model for Turbulence
Oriented-Eddy Collision Model Turbulence
2014/10/23
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...
ON THE DEVELOPMENT OF SELFADAPTING (RAS/LES) TURBULENCE MODELS FOR FLUID SIMULATION AT ANY MESH RESOLUTION
SELF ADAPTING TURBULENCE MODELS FLUID SIMULATION MESH RESOLUTION
2014/10/23
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...
Numerical simulation of airfoil flows with a turbulence model
turbulence airfoil incompressible separation openFOAM
2014/5/15
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...