39 citations · 143 across the 12 of their papers we have counts for
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Stability of Diffusive Shear Layers
Stefan S. Nixon, Philipp P. Vieweg
As one of the cornerstones of fluid mechanics, stability analyses provide essential physical insights into the growth of perturbations and eventual transition to turbulence. Howeve…
Anisotropy of emergent large-scale dynamics in forced stratified shear flows
Philipp P Vieweg, Colm-cille P Caulfield
Although stably stratified shear flows, where the base velocity shear is quasi-continuously forced externally, arise in many geophysically and environmentally relevant circumstance…
Effects of conjugate heat transfer on large-scale flow structures in convection
Matti Ettel, Philipp Patrick Vieweg, Jörg Schumacher
The constant temperature and constant heat flux thermal boundary conditions, both developing distinct flow patterns, represent limiting cases of ideally conducting and insulating p…
Turbulent mesoscale convection in the Boussinesq limit and beyond
Shadab Alam, Dmitry Krasnov, Ambrish Pandey +4
Mesoscale convection covers an intermediate scale range between small-scale turbulence and the global organization of the convection flow. It is often characterized by an order of…
Digital twin of a large-aspect-ratio Rayleigh-Bénard experiment: Role of thermal boundary conditions, measurement errors and uncertainties
Philipp Patrick Vieweg, Theo Käufer, Christian Cierpka +1
Albeit laboratory experiments and numerical simulations have proven themselves successful in enhancing our understanding of long-living large-scale flow structures in horizontally…
Supergranule aggregation: a Prandtl number-independent feature of constant heat flux-driven convection flows
Philipp P. Vieweg
Supergranule aggregation, i.e., the gradual aggregation of convection cells to horizontally extended networks of flow structures, is a unique feature of constant heat flux-driven t…
Lagrangian studies of coherent sets and heat transport in constant heat flux-driven turbulent Rayleigh-Bénard convection
Philipp P. Vieweg, Anna Klünker, Jörg Schumacher +1
We explore the mechanisms of heat transfer in a turbulent constant heat flux-driven Rayleigh-Bénard convection flow, which exhibits a hierarchy of flow structures from granules to…
Thermal boundary condition studies in large aspect ratio Rayleigh-Bénard convection
Theo Käufer, Philipp P. Vieweg, Jörg Schumacher +1
We study the influence of thermal boundary conditions on large aspect ratio Rayleigh-Bénard convection by a joint analysis of experimental and numerical data sets for a Prandl numb…
Inverse cascades of kinetic energy and thermal variance in three-dimensional horizontally extended turbulent convection
Philipp P. Vieweg, Janet D. Scheel, Rodion Stepanov +1
Inverse cascades of kinetic energy and thermal variance in the subset of vertically homogeneous modes in spectral space are found to cause a slow aggregation to a pair of convectiv…
Evolutionary clustering of Lagrangian trajectories in turbulent Rayleigh-Bénard convection flows
Christiane Schneide, Philipp P. Vieweg, Jörg Schumacher +1
We explore the transport mechanisms of heat in two- and three-dimensional turbulent convection flows by means of the long-term evolution of Lagrangian coherent sets. They are obtai…
Lagrangian heat transport in turbulent three-dimensional convection
Philipp P. Vieweg, Christiane Schneide, Kathrin Padberg-Gehle +1
Spatial regions that do not mix effectively with their surroundings and thus contribute less to the heat transport in fully turbulent three-dimensional Rayleigh-Bénard flows are id…
Supergranule aggregation for constant heat flux-driven turbulent convection
Philipp P. Vieweg, Janet D. Scheel, Jörg Schumacher
Turbulent convection processes in nature are often found to be organized in a hierarchy of plume structures and flow patterns. The gradual aggregation of convection cells or granul…