KIT-PLASMEBA

The LisbOn KInetics (LoKI) code is a simulation tool that couples two main calculation blocks: a Boltzmann solver (LoKI-B) and a Chemical solver (LoKI-C). LoKI is developed with flexible and upgradable object-oriented programming under MATLAB, to benefit from its matrix-based architecture, adopting an ontology that privileges the separation between tool and data.

• LoKI-B (available as an open-source tool) solves the time and space independent form of the two-term electron Boltzmann equation, for non-magnetised non-equilibrium low-temperature plasmas excited by DC/HF electric fields from different gases or gas mixtures. LoKI-B was developed as a response to the need of having an electron Boltzmann solver easily addressing the simulation of the electron kinetics in any complex gas mixture (of atomic / molecular species), describing first and second-kind electron collisions with any target state (electronic, vibrational and rotational), characterized by any user-prescribed population. LoKI-B includes electron-electron collisions, it handles rotational collisions adopting either a discrete formulation or a more convenient continuous approximation, and it accounts for variations in the number of electrons due to non-conservative events by assuming growth models for the electron density.
  
  For more information, see A. Tejero-del-Caz, V. Guerra, D. Gonçalves, M. Lino da Silva, L. Marques, N. Pinhão, C. D. Pintassilgo and L. L. Alves, The LisbOn KInetics Boltzmann solver, Plasma Sources Science and Technology 28 043001 (2019), available here.
  
The code can be downloaded here.
After downloading LoKI-B, and especially if you intend to interact with us, you are invited to send a short message
to: loki@tecnico.ulisboa.pt
with subject: LoKI-B
just giving your name and affiliation.

If you are an user of LoKI-B, you are kindly requested to mention the simulation tool in your presentations, using one of the slides contained in this package.


• LoKI-C solves the system of zero-dimensional (volume average) rate balance equations for the most relevant charged and neutral species in the plasma, receiving as input data the kinetic schemes KIT(s) for the gas/plasma system under study via an intuitive parser-file. LoKI-C uses several modules to describe the mechanisms (collisional, radiative and transport) controlling the creation / destruction of species, namely various transport models for the charged particles (ambipolar diffusion, effective diffusion, and Liberman and Lee’s low-pressure model) and for the neutral particles (multicomponent diffusion of species following Wilke’s approach, and considering wall recombination). A gas thermal model is currently being implemented. LoKI-C is under development still, and presently there is no tentative date for its conclusion and/or release.

If you are an user of LoKI-C, you are kindly requested to mention the simulation tool in your presentations, using one of the slides contained in this package.

See here a home video by Duarte Gonçalves on LoKI and his project

LoKI is being presented in seminars at various research laboratories around the world. See here a copy of the presentation

See below the workflow of LoKI

The simulation tool is managed using the redmine web application under a Git versioning control.

The tools, documentation and data will be available soon under NPRiME, a dedicated NAS server from Synology (DiskStation DS961+).