12 citations · 19 across the 6 of their papers we have counts for
6 papers
A data-driven approach for 2D vorticity PDF equations by a new conditional average estimation
Qian Huang, Simon Görtz, Paul Hollmann +3
We consider the statistics for the vorticity field in two-dimensional homogeneous isotropic turbulence (HIT). First, we exploit the invariance properties to derive dimensionally re…
Validation of symmetry-induced high moment velocity and temperature scaling laws in a turbulent channel flow
Francisco Alcántara-Ávila, Luis Miguel García-Raffi, Sergio Hoyas +1
The symmetry-based turbulence theory has been used to derive new scaling laws for the streamwise velocity and temperature moments of arbitrary order. For this, it has been applied…
Shear-thinning in Polymer Melts -- Molecular Origins and Hybrid Multiscale Simulations
Ranajay Datta, Leonid Yelash, Friederike Schmid +4
We investigate the molecular origin of shear-thinning in melts of flexible, semiflexible and rigid oligomers with coarse-grained simulations of a sheared melt. Alignment, stretchin…
An Extended Discontinuous Galerkin Method for High-Order Shock-Fitting
Markus Geisenhofer, Florian Kummer, Martin Oberlack
We present a sub-cell accurate shock-fitting technique using a high-order extended discontinuous Galerkin (XDG) method, where a computational cell of the background grid is cut int…
Symmetry Analysis in Linear Hydrodynamic Stability Theory: Classical and New Modes in Linear Shear
Andreas Nold, Martin Oberlack
We present a symmetry classification of the linearised Navier-Stokes equations for a two-dimensional unbounded linear shear flow of an incompressible fluid. The full set of symmetr…
Application of Lie group analysis to functional differential equations
Martin Oberlack, Marta Waclawczyk
In the present paper the classical point symmetry analysis is extended from partial differential to functional differential equations with functional derivatives. In order to perfo…