50 citations · 174 across the 12 of their papers we have counts for
12 papers
Efficient Quality Diversity Optimization of 3D Buildings through 2D Pre-optimization
Alexander Hagg, Martin L. Kliemank, Alexander Asteroth +4
Quality diversity algorithms can be used to efficiently create a diverse set of solutions to inform engineers' intuition. But quality diversity is not efficient in very expensive p…
Lettuce: PyTorch-based Lattice Boltzmann Framework
Mario Christopher Bedrunka, Dominik Wilde, Martin Kliemank +3
The lattice Boltzmann method (LBM) is an efficient simulation technique for computational fluid mechanics and beyond. It is based on a simple stream-and-collide algorithm on Cartes…
Cubature rules for weakly and fully compressible off-lattice Boltzmann methods
Dominik Wilde, Andreas Krämer, Mario Bedrunka +2
Off-lattice Boltzmann methods increase the flexibility and applicability of lattice Boltzmann methods by decoupling the discretizations of time, space, and particle velocities. How…
High-order semi-Lagrangian kinetic scheme for compressible turbulence
Dominik Wilde, Andreas Krämer, Dirk Reith +1
Turbulent compressible flows are traditionally simulated using explicit time integrators applied to discretized versions of the Navier-Stokes equations. However, the associated Cou…
A new class of discontinuous solar wind solutions
Bidzina M. Shergelashvili, Velentin N. Melnik, Grigol Dididze +6
A new class of one-dimensional solar wind models is developed within the general polytropic, single-fluid hydrodynamic framework. The particular case of quasi-adiabatic radial expa…
Semi-Lagrangian lattice Boltzmann method for compressible flows
Dominik Wilde, Andreas Krämer, Dirk Reith +1
This work thoroughly investigates a semi-Lagrangian lattice Boltzmann (SLLBM) solver for compressible flows. In contrast to other LBM for compressible flows, the vertices are organ…
On the Stability of Gradient Based Turbulent Flow Control without Regularization
Emre Özkaya, Nicolas R. Gauger, Daniel Marinc +1
In this paper, we discuss selected adjoint approaches for the turbulent flow control. In particular, we focus on the application of adjoint solvers for the scope of noise reduction…
Comment on 'Lie symmetry analysis of the Lundgren-Monin-Novikov equations for multi-point probability density functions of turbulent flow'
Michael Frewer, George Khujadze, Holger Foysi
The recent study by Waclawczyk et al. [J. Phys. A: Math. Theor. 50, 175501 (2017)] possesses three shortcomings: (i) The analysis misses a key aspect of the LMN equations which mak…
A note on the notion "statistical symmetry"
Michael Frewer, George Khujadze, Holger Foysi
A critical review is presented on the most recent attempt to generally explain the notion of "statistical symmetry". This particular explanation, however, is incomplete and misses…
A critical examination of the statistical symmetries admitted by the Lundgren-Monin-Novikov hierarchy of unconfined turbulence
Michael Frewer, George Khujadze, Holger Foysi
We present a critical examination of the recent article by Waclawczyk et al. (2014) which proposes two new statistical symmetries in the classical theory for turbulent hydrodynamic…
Is the log-law a first principle result from Lie-group invariance analysis?
Michael Frewer, George Khujadze, Holger Foysi
The invariance method of Lie-groups in the theory of turbulence carries the high expectation of being a first principle method for generating statistical scaling laws. The purpose…
On the physical inconsistency of a new statistical scaling symmetry in incompressible Navier-Stokes turbulence
Michael Frewer, George Khujadze, Holger Foysi
A detailed theoretical investigation is given which demonstrates that a recently proposed statistical scaling symmetry is physically void. Although this scaling is mathematically a…