License

pyoomph is free software, published under the GNU General Public License v3.0 License.

pyoomph - a multi-physics finite element framework based on oomph-lib and GiNaC
Copyright (C) 2021-2024  Christian Diddens & Duarte Rocha

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see http://www.gnu.org/licenses/.

However, since pyoomph contains and makes use of a plethora of other free software codes, please read the full list of acknowledgements/licenses here or here.

Authors and acknowledgements

Pyoomph was started in 2021 by Christian Diddens. In 2022, Duarte Rocha joined the development. Pyoomph is developed at the Physics of Fluids group of the University of Twente.

The authors gratefully acknowledge financial support by the Industrial Partnership Programme Fundamental Fluid Dynamics Challenges in Inkjet Printing of the Netherlands Organisation for Scientific Research (NWO) & High Tech Systems and Materials (HTSM), co-financed by Canon Production Printing Netherlands B.V., IamFluidics B.V., TNO Holst Centre, University of Twente, Eindhoven University of Technology and Utrecht University.

How to cite

If you use pyoomph, please cite the following paper:

• Christian Diddens and Duarte Rocha, Bifurcation tracking on moving meshes and with consideration of azimuthal symmetry breaking instabilities, J. Comput. Phys. 518, 113306, (2024), [doi:10.1016/j.jcp.2024.113306].

Also, please mention that pyoomph is based on oomph-lib and GiNaC, i.e. cite the following papers as well:

• M. Heil, A. L. Hazel, oomph-lib - An Object-oriented multi-physics finite-element library, Lect. Notes Comput. Sci. Eng. 53, 19-49, (2006), [doi:10.1007/3-540-34596-5_2].
• C. Bauer, A. Frink, R. Kreckel, Introduction to the GiNaC framework for symbolic computation within the C++ programming language, J. Symb. Comput. 33(1), 1-12, (2002), [doi:10.1006/jsco.2001.0494].

Please also cite additional references when you use the UNIFAC-like models or material properties.

Publications using pyoomph

The following publications have used pyoomph or its never released predecessor:

30. Christian Diddens, Pim J. Dekker & Detlef Lohse, Non-monotonic surface tension leads to spontaneous symmetry breaking in a binary evaporating drop , submitted. [PDF (arXiv preprint)]
29. Duco van Buuren, Pallav Kant, Jochem G. Meijer, Christian Diddens & Detlef Lohse, Deforming ice with drops , submitted. [PDF (arXiv preprint)]
28. Jochem G. Meijer, Duarte Rocha, Annemarie M. Linnenbank, Christian Diddens & Detlef Lohse, Enhanced bubble growth near an advancing solidification front , submitted. [PDF (arXiv preprint)]
27. Yuki Wakata, Xing Chao, Chao Sun & Christian Diddens, Evaporation of acoustically levitated bicomponent droplets: mass and heat transfer characteristics , submitted. [PDF (arXiv preprint)]
26. Christian Diddens & Duarte Rocha, Bifurcation tracking on moving meshes and with consideration of azimuthal symmetry breaking instabilities , submitted. [PDF (arXiv preprint)]
25. Lijun Thayyil Raju, Christian Diddens, Javier Rodríguez-Rodríguez, Marjolein N. van der Linden, Xuehua Zhang, Detlef Lohse & Uddalok Sen, Evaporation of binary liquids from a capillary tube , J. Fluid Mech. 983, A21, (2024). [PDF (Open Access)]
24. Sarah Cleve, Anne Lassus, Christian Diddens, Benjamin van Elburg, Emmanuel Gaud, Samir Cherkaoui, Michel Versluis, Tim Segers & Guillaume Lajoinie, Microbubble formation by flow focusing: role of gas and liquid properties, and channel geometry , J. Fluid Mech. 972, A27, (2023). [PDF (Open Access)]
23. Jochem G. Meijer, Yanshen Li, Christian Diddens & Detlef Lohse, On the rising and sinking motion of bouncing oil drops in strongly stratified liquids , J. Fluid Mech. 966, A14, (2023). [PDF (Open Access)]
22. Karun P.N. Datadien, Gianluca Di Staso, Christian Diddens, Herman Wijshoff & Federico Toschi, Comparison of Lattice Boltzmann, Finite Element and Volume of Fluid Multicomponent Methods for Microfluidic Flow Problems and the Jetting of Microdroplets , Commun. Comput. Phys. 33, 912–936, (2023).
21. Maaike Rump, Uddalok Sen, Roger Jeurissen, Hans Reinten, Michel Versluis, Detlef Lohse, Christian Diddens & Tim Segers, Selective evaporation at the nozzle exit in piezoacoustic inkjet printing , Phys. Rev. Appl. 19, 054056, (2023). [PDF (arXiv preprint)]
20. Simon Hartmann, Christian Diddens, Maziyar Jalaal & Uwe Thiele, Sessile drop evaporation in a gap - crossover between diffusion-limited and phase transition-limited regime , J. Fluid Mech. 960, A32, (2023). [PDF (Open Access)]
19. Maziyar Jalaal, Borge ten Hagen, Hai le The, Christian Diddens, Detlef Lohse & Alvaro Marin, Interfacial aggregation of self-propelled Janus colloids in sessile droplets , Phys. Rev. Fluids 7, 110514, (2022). [PDF (arXiv preprint)]
18. Hanneke Gelderblom, Christian Diddens & Alvaro Marin, Evaporation-driven liquid flow in sessile droplets , Soft Matter 18, 8535–8553, (2022). [PDF (Open Access)]
17. Tristan H.B. Demont, Gert-Jan van Zwieten, Christian Diddens & Harald van Brummelen, A robust and accurate adaptive approximation method for a diffuse-interface model of binary-fluid flows , Comput. Methods Appl. Mech. Eng. 400, 115563, (2022). [PDF (Open Access)]
16. Ricardo Arturo Lopez de la Cruz, Christian Diddens, Xuehua Zhang & Detlef Lohse, Oscillatory droplet dissolution from competing Marangoni and gravitational flows , Phys. Rev. Fluids 7, 094006, (2022). [PDF (arXiv preprint)]
15. Lijun Thayyil Raju, Christian Diddens, Yaxing Li, Alvaro Marin, Marjolein N. van der Linden, Xuehua Zhang & Detlef Lohse, Evaporation of a sessile colloidal water-glycerol droplet: Marangoni ring formation , Langmuir 38, 12082–12094, (2022). [PDF (Open Access)]
14. Yaxing Li, Pengyu Lv, Christian Diddens & Detlef Lohse, Physicochemical hydrodynamics of the phase segregation in an evaporating binary microdroplet , J. Fluid Mech. 946, A37, (2022). [PDF (Open Access)]
13. Ruben T. van Gaalen, Herman Wijshoff, Johannes G.M. Kuerten & Christian Diddens, Competition between thermal and surfactant-induced Marangoni flow in evaporating sessile droplets , J. Colloid Interface Sci. 622, 892–903, (2022). [PDF (Open Access)]
12. Huanshu Tan, Christian Diddens, Xuehua Zhang & Detlef Lohse, Evaporation of Ternary Sessile Drops , In: Drying of Complex Fluid Drops: Fundamentals and Applications, The Royal Society of Chemistry, (2022).
11. Sarah Cleve, Christian Diddens, Tim Segers, Guillaume Lajoinie & Michel Versluis, Time-resolved velocity and pressure field quantification in a flow-focusing device for ultrafast microbubble production , Phys. Rev. Fluids 6, 114202, (2021). [PDF (arXiv preprint)]
10. Michiel A. Hack, Patrick Vondeling, Menno Cornelissen, Detlef Lohse, Jacco H. Snoeijer, Christian Diddens & Tim Segers, Asymmetric coalescence of two droplets with different surface tensions is caused by capillary waves , Phys. Rev. Fluids 6, 104002, (2021). [PDF (arXiv preprint)]
9. Ricardo Arturo Lopez de la Cruz, Christian Diddens, Xuehua Zhang & Detlef Lohse, Marangoni instability triggered by selective evaporation of a binary liquid inside a Hele-Shaw cell , J. Fluid Mech. 923, A16, (2021). [PDF (Open Access)]
8. Yanshen Li, Christian Diddens, Andrea Prosperetti & Detlef Lohse, Marangoni instability of a drop in a stably stratified liquid , Phys. Rev. Lett. 126, 124502, (2021). [PDF (arXiv preprint)]
7. Christian Diddens, Yaxing Li & Detlef Lohse, Competing Marangoni and Rayleigh convection in evaporating binary droplets , J. Fluid Mech. 914, A23, (2021). [PDF (Open Access)]
6. Yaxing Li, Christian Diddens, Tim Segers, Herman Wijshoff, Michel Versluis & Detlef Lohse, Rayleigh-Taylor instability by segregation in an evaporating multicomponent microdroplet , J. Fluid Mech. 899, A22, (2020). [PDF (Open Access)]
5. Yaxing Li, Christian Diddens, Tim Segers, Herman Wijshoff, Michel Versluis & Detlef Lohse, Evaporating droplets on oil-wetted surfaces: Suppression of the coffee-stain effect , PNAS 117, 16756–16763, (2020). [PDF (Open Access)]
4. Huanshu Tan, Christian Diddens, Ali Akash Mohammed, Junyi Li, Michel Versluis, Xuehua Zhang & Detlef Lohse, Microdroplet nucleation by dissolution of a multicomponent drop in a host liquid , J. Fluid Mech. 870, 217–246, (2019). [PDF (Open Access)]
3. Yanshen Li, Christian Diddens, Andrea Prosperetti, Kai Leong Chong, Xuehua Zhang & Detlef Lohse, Bouncing oil droplet in a stratified liquid and its sudden death , Phys. Rev. Lett. 122, 154502, (2019). [PDF (arXiv preprint)]
2. Yaxing Li, Christian Diddens, Pengyu Lv, Herman Wijshoff, Michel Versluis & Detlef Lohse, Gravitational effect in evaporating binary microdroplets , Phys. Rev. Lett. 122, 114501, (2019). [PDF (arXiv preprint)]
1. Anaïs Gauthier, Christian Diddens, Rémi Proville, Detlef Lohse & Devaraj van der Meer, Self-propulsion of inverse Leidenfrost drops on a cryogenic bath , PNAS 116, 1174–1179, (2019). [PDF (Open Access)]