A5055576879- Lattice Boltzmann Simulation Studies
- Fluid Dynamics and Turbulent Flows
- Aerosol Filtration and Electrostatic Precipitation
- Fluid Dynamics and Vibration Analysis
- Heat and Mass Transfer in Porous Media
- Aerodynamics and Fluid Dynamics Research
- Service-Oriented Architecture and Web Services
- Real-time simulation and control systems
- Fluid Dynamics and Thin Films
- Vehicle Dynamics and Control Systems
- Distributed systems and fault tolerance
- Electric and Hybrid Vehicle Technologies
- Generative Adversarial Networks and Image Synthesis
- Fluid Dynamics and Heat Transfer
- Advanced Mathematical Modeling in Engineering
- Advanced Software Engineering Methodologies
- Distributed and Parallel Computing Systems
- Block Copolymer Self-Assembly
- Flood Risk Assessment and Management
- Gas Dynamics and Kinetic Theory
- Computational Fluid Dynamics and Aerodynamics
- Control Systems in Engineering
- Material Properties and Applications
- Software System Performance and Reliability
- Innovations in Concrete and Construction Materials
Technische Universität Braunschweig
2015-2024
University of Leeds
2022
Engineering and Physical Sciences Research Council
2022
University of Hull
2022
Weizmann Institute of Science
2020
University of Perugia
2018
University of Freiburg
2004-2009
Friedrich-Alexander-Universität Erlangen-Nürnberg
1998-2005
Lattice Boltzmann methods are of limited applicability for direct numerical simulation turbulent flow due to instabilities in the zero viscosity limit. We observe that this is caused by an insufficient degree Galilean invariance relaxation-type collision operator. The cascaded digital lattice automata described here, provides a method with which achieve stable operators down limit viscosity.
We propose, analyze, and validate a lattice Boltzmann model with cumulant collision operator. The new is analytically numerically shown to poses smaller errors than moment based Multiple Relaxation Time model. demonstrate the usability of by simulations flow around sphere for Reynolds numbers from 200 105.
Based on the phase-field theory, we propose a conservative lattice Boltzmann method to track interface between two different fluids. The presented model recovers equation and conserves mass locally globally. Two entirely approaches are used calculate gradient of phase field, which is needed in computation normal interface. One approach uses finite-difference stencils similar many existing models for tracking two-phase interface, while other one invokes central moments field without any...
We present and analyze the Esoteric Twist algorithm for Lattice Boltzmann Method. is a thread safe in-place streaming method that combines collision requires only single data set. Compared to other techniques, minimizes memory footprint traffic when indirect addressing used. particularly suitable implementation of Method on Graphic Processing Units.
Abstract We present a comprehensive analysis of the cumulant lattice Boltzmann model with three-dimensional Taylor–Green vortex benchmark at Reynolds number 1600. The is investigated in several different variants, using regularization, fourth-order convergent diffusion and advection without limiters. In addition, combined WALE sub-grid scale being evaluated. turbulence found to filter out high wave contributions from energy spectrum enstrophy, while non-filtered methods show good...
The theory of the lattice Boltzmann automaton is based on a moment transform which not Galilean invariant. It explained how central moments transform, used in cascaded method, overcomes this problem by choosing center mass coordinate system as frame reference. invariance restored and form kinetic unaffected. Conservation laws are compromised high order polyinomials equilibrium distribution arising from transform. Two sources instabilities simulations discussed: negative numerical viscosity...
The dispersion process of ceramic agglomerates modeled as solid particles with mass and drag coefficient in a micro-machined disperser is simulated the cumulant lattice Boltzmann method (LBM). A simplified particle model used for tracking