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research:start [2019/04/08 19:48] – [List of research ideas] jannis | research:start [2023/10/26 14:59] (current) – [Supervision] jannis | ||
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===== Research ===== | ===== Research ===== | ||
- | ==== Computational physics | + | ==== Experience and interests |
+ | |||
+ | My general research interests are scientific computing, computational (plasma) physics and more recently also machine learning. | ||
I have developed both particle-in-cell and plasma fluid codes for the simulation | I have developed both particle-in-cell and plasma fluid codes for the simulation | ||
- | of electric discharges (non-thermal plasmas), see [[projects: | + | of electric discharges (non-thermal plasmas). I'm also active in the development |
- | active in the development of [[http:// | + | of [[http:// |
- | (magneto)hydrodynamics simulations. | + | simulations. |
- | has focused on topics such as: | + | (AMR) and fast elliptic solvers (e.g., multigrid). I like to study systems that |
+ | have some intrinsic complexity, not coming from boundary conditions or input | ||
+ | data. | ||
- | * Adaptive mesh refinement | + | Since 2018, I have been working on machine learning methods applied to space weather applications, |
- | * Parallelization (using MPI and/or OpenMP) | + | |
- | * Fast elliptic solvers (multigrid) | + | |
- | * Adaptive control | + | |
- | ==== Machine learning ==== | + | === Research projects |
- | Since the end of 2018 I'm involved in two projects on machine learning for space | + | //(Past projects in italics)// |
- | physics applications, | + | |
- | [[https:// | + | |
- | with [[https:// | + | |
- | ==== List of research ideas ==== | + | * [[https:// |
+ | * [[https:// | ||
+ | * [[https:// | ||
- | This is an incomplete list of topics that I'd like to investigate. If you are | ||
- | interested in collaborating or doing a student project, feel free to get in | ||
- | touch (see [[contact: | ||
- | * Adding support for internal boundary conditions in a geometric multigrid solver. | + | * // |
- | * Finding the fastest possible direct sparse method for solving the coarse grid equations in a geometric multigrid method. | + | * //[[http://www.aida-space.eu/|AIDA (H2020 - 776262)]] [[https://cordis.europa.eu/project/id/776262|EU info]]// |
- | * Enabling efficient visualization of octree AMR data in Visit or Paraview. | + | * // |
- | * Coupling stiff chemistry to simulations with AMR (adaptive mesh refinement), where the chemistry can be evaluated at coarser resolution and perhaps partially implicitly. | + | |
- | * Performing large scale 3D simulations of [[https://en.wikipedia.org/wiki/ | + | |
- | * Coupling particle and fluid models in energy space, for the study of [[https://en.wikipedia.org/wiki/Runaway_electrons|runaway electron]] production in electric discharges. | + | |
- | * More robustly solving plasma fluid equations in discharge models using explicit time integration. | + | |
- | * Investigating the so-called " | + | |
- | * Investigating what happens when discharges are ' | + | |
- | * Making a tool to estimate discharge inception probability and jitter from an electrostatic potential (//currently in progress with Shahriar Mirpour and Andy Martinez//). | + | |
- | * Compare particle-in-cell and plasma fluid models for 2D and 3D simulations of streamer discharges. | + | |
- | ==== Publications | + | ==== Supervision |
- | [[publications: | + | //Past postdocs, PhD students etc. in italic// |
- | ==== PhD ==== | + | === Postdocs |
- | I finished my [[publications: | + | * //Ajay Tiwari// |
- | the [[http://cwimd.nl|Multiscale Dynamics]]((This is our official (CWI-hosted) | + | |
- | [[https://www.cwi.nl/research-groups/ | + | |
- | CWI, under the supervision of [[http://homepages.cwi.nl/ | + | |
- | ==== General interests ==== | + | //(In collaboration with [[https:// |
- | After finishing secondary school in 2005, there were three topics that I wanted | + | === PhD students === |
- | to study: | + | |
- | * How a (human) brain works | + | I (co-)supervise(d) the following PhD students together with [[https:// |
- | * How a computer works | + | |
- | * How nature works | + | |
- | Thus far, I have mostly been busy with the latter two questions, with my primary | + | * Hemaditya Malla (daily supervisor) |
- | research interests being computational science | + | * Dennis Bouwman |
- | to study systems that have some intrinsic complexity, not coming from boundary | + | * Baohong Guo (daily supervisor) |
- | conditions or input data. | + | * Xiaoran Li (daily supervisor) |
+ | * Zhen Wang (daily supervisor) | ||
+ | |||
+ | * //Andy Martinez// | ||
+ | |||
+ | === PhD commitee member === | ||
+ | |||
+ | * Hani Francisco (2023, TU Eindhoven) | ||
+ | * Brecht Laperre (2022, KU Leuven) | ||
+ | * Andy Martinez (2022, TU Eindhoven) | ||
+ | * Alejandro Malagon (2021, University of Granada) | ||
+ | * Shahriar Mirpour (2021, TU Eindhoven) | ||
+ | |||
+ | |||
+ | === MSc / BSc students === | ||
+ | |||
+ | * //Francesca Schiavello// | ||
+ | * //Chris van der Heijden// (2021, TU/e BSc) | ||
+ | * //Stijn van Deutekom// (2020, TU/e BSc) | ||
+ | |||
+ | ==== Ideas for research projects ==== | ||
+ | |||
+ | Examples of research/ | ||
+ | |||
+ | * Simulating incompressible flow with the Afivo framework | ||
+ | * Exploring hybrid OpenMP/MPI parallelization for AMR frameworks | ||
+ | * Solving plasma fluid equations implicitly. In particular, what is a good preconditioner? | ||
+ | * Improving the convergence rate of Monte Carlo particle swarm simulations in low electric fields. One idea is to limit the drift in electron momentum due to collisions. | ||
+ | * Coupling explicit | ||
+ | * Performing large scale 3D simulations of [[https:// | ||
+ | * Coupling particle and fluid models in energy space, for the study of [[https:// | ||
+ | * Extending the discharge model comparison of this [[http://dx.doi.org/ | ||