Lagrangian perspectives on turbulent superstructures in Rayleigh-Bénard convection
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In: Proceedings in applied mathematics and mechanics, Vol. 19, No. 1, 201900201, 01.11.2019.
Research output: Journal contributions › Conference abstract in journal › Research › peer-review
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TY - JOUR
T1 - Lagrangian perspectives on turbulent superstructures in Rayleigh-Bénard convection
AU - Klünker, Anna
AU - Schneide, Christiane
AU - Pandey, Ambrish
AU - Padberg-Gehle, Kathrin
AU - Schumacher, Jörg
N1 - Conference code: 90
PY - 2019/11/1
Y1 - 2019/11/1
N2 - We analyze large‐scale patterns in three‐dimensional turbulent convection in a horizontally extended square convection cell by means of Lagrangian particle trajectories calculated in direct numerical simulations. Different Lagrangian computational methods, i.e. finite‐time Lyapunov exponents, spectral and density‐based clustering and transfer operator approaches, are used to detect these large‐scale structures, which are denoted as turbulent superstructures of convection.
AB - We analyze large‐scale patterns in three‐dimensional turbulent convection in a horizontally extended square convection cell by means of Lagrangian particle trajectories calculated in direct numerical simulations. Different Lagrangian computational methods, i.e. finite‐time Lyapunov exponents, spectral and density‐based clustering and transfer operator approaches, are used to detect these large‐scale structures, which are denoted as turbulent superstructures of convection.
KW - Mathematics
UR - https://www.mendeley.com/catalogue/a71b07f2-a1d8-31d0-9241-259a69b0a922/
U2 - 10.1002/pamm.201900201
DO - 10.1002/pamm.201900201
M3 - Conference abstract in journal
VL - 19
JO - Proceedings in applied mathematics and mechanics
JF - Proceedings in applied mathematics and mechanics
SN - 1617-7061
IS - 1
M1 - 201900201
T2 - 90th Annual Meeting of the International Association of Applied Mathematics and Mechanics - 2019
Y2 - 18 February 2019 through 22 February 2019
ER -