On the hydrodynamic and magnetohydrodynamic stability of an inclined layer heated from below

2017 ◽  
Vol 28 (3) ◽  
pp. 515-534 ◽  
Author(s):  
Paolo Falsaperla ◽  
Andrea Giacobbe ◽  
Giuseppe Mulone
Keyword(s):  
Inclined Layer

scholarly journals Invariant states in inclined layer convection. Part 2. Bifurcations and connections between branches of invariant states

2020 ◽  
Vol 898 ◽  
Author(s):  
Florian Reetz ◽  
Priya Subramanian ◽  
Tobias M. Schneider
Keyword(s):  
Inclined Layer ◽  
Invariant States ◽  
Image Position

An airborne radar technique for studying insect migration

1989 ◽  
Vol 79 (4) ◽  
pp. 693-704 ◽  
Author(s):  
S. E. Hobbs ◽  
W. W. Wolf
Keyword(s):  
Spatial Organization ◽  
Field Work ◽  
Radar System ◽  
Track Length ◽  
Airborne Radar ◽  
Density Profiles ◽  
Inclined Layer ◽  
Insect Migration ◽  
Time Signals ◽  
Insect Density

AbstractAn airborne radar system able to measure insect density profiles and the orientation of individual insect targets was developed using standard components. Using the system, typical moth targets, with a radar cross-section of 1 cm2, can be detected to a range of about 1 km. Signals from 48 separate height bands, each 15 m deep, are recorded on three analogue data channels. Analogue outputs related to aerial population per hectare can be viewed in real-time. Signals recorded during recent field work show an inclined layer over a track length of 30 km, with target orientation profiles at two positions along the layer. The strongest orientation occurred in regions of wind shear. Airborne entomological radar powerfully complements existing techniques by virtue of its mobility, providing unique opportunities to study the spatial organization of migration, to track features as they develop and to survey large areas.

scholarly journals Ricocheting inclined layer convection states

2020 ◽  
Vol 900 ◽  
Author(s):  
Laurette S. Tuckerman
Keyword(s):  
Inclined Layer ◽  
Image Position

Abstract

On the convective instability of a liquid in an inclined layer of a porous medium

1975 ◽  
Vol 14 (3) ◽  
pp. 400-404 ◽  
Author(s):  
A. K. Kolesnikov ◽  
D. V. Lyubimov
Keyword(s):  
Porous Medium ◽  
Convective Instability ◽  
Inclined Layer

scholarly journals Spatio-temporal patterns in inclined layer convection

2016 ◽  
Vol 794 ◽  
pp. 719-745 ◽  
Author(s):  
Priya Subramanian ◽  
Oliver Brausch ◽  
Karen E. Daniels ◽  
Eberhard Bodenschatz ◽  
Tobias M. Schneider ◽  
...  
Keyword(s):  
Boussinesq Equations ◽  
Temporal Patterns ◽  
Resonant Interaction ◽  
Onset Of Convection ◽  
Inclined Layer ◽  
Spatio Temporal ◽  
The Rich ◽  
Convection Patterns ◽  
Oriented Parallel ◽  
Convection Rolls

This paper reports on a theoretical analysis of the rich variety of spatio-temporal patterns observed recently in inclined layer convection at medium Prandtl number when varying the inclination angle ${\it\gamma}$ and the Rayleigh number $R$. The present numerical investigation of the inclined layer convection system is based on the standard Oberbeck–Boussinesq equations. The patterns are shown to originate from a complicated competition of buoyancy driven and shear-flow driven pattern forming mechanisms. The former are expressed as longitudinal convection rolls with their axes oriented parallel to the incline, the latter as perpendicular transverse rolls. Along with conventional methods to study roll patterns and their stability, we employ direct numerical simulations in large spatial domains, comparable with the experimental ones. As a result, we determine the phase diagram of the characteristic complex 3-D convection patterns above onset of convection in the ${\it\gamma}{-}R$ plane, and find that it compares very well with the experiments. In particular we demonstrate that interactions of specific Fourier modes, characterized by a resonant interaction of their wavevectors in the layer plane, are key to understanding the pattern morphologies.

Inclined layer Soret instabilities

2009 ◽  
Vol 79 (5) ◽  
Author(s):  
A. Zebib ◽  
M. M. Bou-Ali
Keyword(s):  
Inclined Layer

Secondary convective motions in a plane inclined layer

1978 ◽  
Vol 12 (3) ◽  
pp. 347-352
Author(s):  
A. A. Nepomnyashchii
Keyword(s):  
Inclined Layer ◽  
Convective Motions

Finite Amplitude Longitudal Convection Rolls in an Inclined Layer

1973 ◽  
Vol 95 (3) ◽  
pp. 407-408 ◽  
Author(s):  
R. M. Clever
Keyword(s):  
Fluid Layer ◽  
Horizontal Layer ◽  
Finite Amplitude ◽  
Two Dimensional ◽  
Governing Equations ◽  
Inclined Layer ◽  
Experimental Heat ◽  
Inclined Fluid Layer ◽  
Longitudinal Coordinate ◽  
Convection Rolls

For the case of a large Prandtl number, buoyancy driven flow in an inclined fluid layer, it is shown that all longitudinal-coordinate-independent solutions of the governing equations are obtainable from a knowledge of the existing results for two-dimensional convection in a horizontal layer, heated from below. The rescaling here yields results which compare favorably with those of existing experimental heat transport values.

scholarly journals Localized Transverse Bursts in Inclined Layer Convection

2003 ◽  
Vol 91 (11) ◽  
Author(s):  
Karen E. Daniels ◽  
Richard J. Wiener ◽  
Eberhard Bodenschatz
Keyword(s):  
Inclined Layer
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