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 -