476 citations
- New York UniversityUS42 papers
- Courant Institute of Mathematical SciencesUS13 papers
- Centre National de la Recherche ScientifiqueFR12 papers
- Fraunhofer Institute for Integrated CircuitsDE12 papers
- University of KonstanzDE12 papers
- University of StuttgartDE12 papers
- Technische Universität BerlinDE10 papers
- Universität HamburgDE10 papers
- Humboldt-Universität zu BerlinDE9 papers
- Occidental CollegeUS9 papers
- Chemnitz University of TechnologyDE8 papers
- Freie Universität BerlinDE8 papers
9 papers · 2 filters
Buoyancy statistics in moist turbulent Rayleigh-Benard convection
Joerg Schumacher, Olivier Pauluis
We study shallow moist Rayleigh-Benard convection in the Boussinesq approximation in three-dimensional direct numerical simulations. The thermodynamics of phase changes is approxim…
Extreme vorticity growth in Navier-Stokes turbulence
Joerg Schumacher, Bruno Eckhardt, Charles R. Doering
According to statistical turbulence theory, the ensemble averaged squared vorticity rho_E is expected to grow not faster than drho_E/dt ~ rho_E^{3/2}. Solving a variational problem…
Transient Rayleigh-Benard-Marangoni Convection due to Evaporation : a Linear Non-normal Stability Analysis
F. Doumenc, T. Boeck, B. Guerrier +1
The convective instability in a plane liquid layer with time-dependent temperature profile is investigated by means of a general method suitable for linear stability analysis of an…
Statistics of velocity gradients in wall-bounded shear flow turbulence
Thomas Boeck, Dmitry Krasnov, Joerg Schumacher
The statistical properties of velocity gradients in a wall-bounded turbulent channel flow are discussed on the basis of three-dimensional direct numerical simulations. Our analysis…
The Lagrangian picture of heat transfer in convective turbulence
Maik Boltes, Herwig Zilken, Joerg Schumacher
We present a fluid dynamics video which illustrates the Lagrangian aspects of local heat transfer in turbulent Rayleigh-Benard convection. The data are obtained from a direct numer…
Low-Prandtl-number Bénard-Marangoni convection in a vertical magnetic field
Thomas Boeck
The effect of a homogeneous magnetic field on surface-tension-driven Bénard convection is studied by means of direct numerical simulations. The flow is computed in a rectangular do…