Detection and reconstruction of large-scale coherent flow structures in gravel-bed rivers

2014 ◽  
Vol 40 (1) ◽  
pp. 93-104 ◽  
Author(s):  
Mário J. Franca ◽  
Ulrich Lemmin
Keyword(s):  
Large Scale ◽  
Flow Structures ◽  
Gravel Bed ◽  
Coherent Flow Structures ◽  
Gravel Bed Rivers

Coherent flow structures in shallow gravel-bed rivers

Shallow Flows ◽  
2004 ◽  
pp. 259-266
Author(s):  
C Keylock ◽  
R Hardy ◽  
D Parsons ◽  
R Ferguson ◽  
S Lane
Keyword(s):  
Flow Structures ◽  
Gravel Bed ◽  
Coherent Flow Structures ◽  
Gravel Bed Rivers

scholarly journals Modons on tidally synchronised extrasolar planets

2021 ◽  
Author(s):  
J W Skinner ◽  
J Y-K Cho
Keyword(s):  
Vortex Dynamics ◽  
Large Scale ◽  
Extrasolar Planets ◽  
High Amplitude ◽  
Life Cycles ◽  
Extrasolar Planet ◽  
Flow Structures ◽  
Cold Air ◽  
Planetary Scale ◽  
Coherent Flow Structures

Abstract We investigate modons on tidally synchronised extrasolar planets. Modons are highly dynamic, coherent flow structures composed of a pair of storms with opposite signs of vorticity. They are important because they divert flows on the large-scale; and, powered by the intense irradiation from the host star, they are planetary-scale sized and exhibit quasi-periodic life-cycles – chaotically moving around the planet, breaking and reforming many times over long durations (e.g. thousands of planet days). Additionally, modons transport and mix planetary-scale patches of hot and cold air around the planet, leading to high-amplitude and quasi-periodic signatures in the disc-averaged temperature flux. Hence, they induce variations of the “hotspot” longitude to either side of the planet’s sub-stellar point - consistent with observations at different epoch. The variability behaviour in our simulations broadly underscores the importance of accurately capturing vortex dynamics in extrasolar planet atmosphere modelling, particularly in understanding current observations.

On large-scale flow structures in a gravel-bed river

Geomorphology ◽  
2000 ◽  
Vol 32 (3-4) ◽  
pp. 417-435 ◽  
Author(s):  
Thomas Buffin-Bélanger ◽  
André G. Roy ◽  
Alistair D. Kirkbride
Keyword(s):  
Large Scale ◽  
Flow Structures ◽  
Gravel Bed ◽  
Gravel Bed River ◽  
Large Scale Flow

Scalings for large turbulent flow structures in gravel-bed rivers

2003 ◽  
Vol 30 (14) ◽  
Author(s):  
Geneviève Paiement-Paradis ◽  
Thomas Buffin-Bélanger ◽  
André G. Roy
Keyword(s):  
Turbulent Flow ◽  
Flow Structures ◽  
Gravel Bed ◽  
Gravel Bed Rivers

Size, shape and dynamics of large-scale turbulent flow structures in a gravel-bed river

2004 ◽  
Vol 500 ◽  
pp. 1-27 ◽  
Author(s):  
ANDRE G. ROY ◽  
THOMAS BUFFIN-BLANGER ◽  
HLNE LAMARRE ◽  
ALISTTAIR D. KIRKBRIDE
Keyword(s):  
Turbulent Flow ◽  
Large Scale ◽  
Flow Structures ◽  
Gravel Bed ◽  
Gravel Bed River
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