نتایج جستجو برای: flow directions

تعداد نتایج: 571854  

In the present study, two-phase nanofluid flow in a three-dimensional system is modeled over a stretching infinite solar plate and the heat transfer analysis is performed for this problem. The governing equations are presented based on previous studies and the suitable solution method is recommended due to infinite boundary condition in the problem. Keller Box Method (KBM) using the Maple 1...

Journal: :Hydrological Processes 2021

Understanding near-stream groundwater dynamics and flow directions is important for predicting hillslope-stream connectivity, streamflow generation, hydrologic controls of streamwater quality. To determine the drivers in stream corridor (i.e., channel adjacent footslopes riparian areas), we observed water levels 36 wells 7 piezometers along a headwater section over period 18 months. Groundwater...

The parametric resonance of the axial vibrations of a cantilever pipe conveying harmonically perturbed two-phase flow is investigated using the method of multiple scale perturbation. The nonlinear coupled and uncoupled planar dynamics of the pipe are examined for a scenario when the axial vibration is parametrically excited by the pulsating frequencies of the two phases conveyed by the pipe. Aw...

Journal: :Physical review fluids 2021

We analyse the nonlinear dynamics of large scale flow in Rayleigh-B\'enard convection a two-dimensional, rectangular geometry aspect ratio $\Gamma$. impose periodic and free-slip boundary conditions streamwise spanwise directions, respectively. As Rayleigh number Ra increases, zonal dominates moderate Prandtl fluid. At high Ra, turbulent regime, transitions are seen probability density function...

2016
Andrey Postnikov Ekaterina Pavlovskaia Marian Wiercigroch

In this study a new two degrees-of-freedom wake oscillator model is proposed to describe vortex-induced vibrations of elastically supported cylinders capable of moving in cross-flow and in-line directions. Total hydrodynamic force acting on the cylinder is obtained here as a sum of lift and drag forces, which are defined as being proportional to the square of the magnitude of the relative flow ...

2003
Frank Seifart Pierre Bayerl Heiko Neumann

This paper describes a neural model developed for computing heading from optic flow caused by 3D translational egomotion. The model uses the distributed representation of optic flow directions in cortical areas MT and MSTd. Model MSTd cells are selective for specific directions of visual motion and have large receptive fields covering approximately a quarter of the visual field at different ret...

Journal: :The European physical journal. E, Soft matter 2010
J Bammert L Holzer W Zimmermann

The dynamics of two Brownian particles trapped by two neighboring harmonic potentials in a linear shear flow is investigated. The positional correlation functions in this system are calculated analytically and analyzed as a function of the shear rate and the trap distance. Shear-induced cross-correlations between particle fluctuations along orthogonal directions in the shear plane are found. Th...

2002
Sajeev John Ovidiu Toader Kurt Busch

Light in certain engineered dielectric microstructures can flow in a way similar to electrical currents in semiconductor chips. These microstructures represent a new frontier in the field of optics. They provide a foundation for the development of novel micro-photonic devices and the integration of such devices into an optical microchip. Glossary: Photonics: the science of moulding the flow of ...

Journal: :Comput. Graph. Forum 2007
Martin Fuchs Hendrik P. A. Lensch Volker Blanz Hans-Peter Seidel

Captured reflectance fields provide in most cases a rather coarse sampling of the incident light directions. As a result, sharp illumination features, such as highlights or shadow boundaries, are poorly reconstructed during relighting; highlights are disconnected, and shadows show banding artefacts. In this paper, we propose a novel interpolation technique for 4D reflectance fields that is capa...

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