The LisbOn KInetics - LoKI

News

LoKI v3.1.0 and LoKI-B v2.2.0 released

Versions 3.1.0 of the LisbOn KInetics suite (LoKI) and the LisbOn KInetics Boltzmann solver (LoKI-B) were released on November 4, 2022. The new versions solve some important bugs (in LoKI-B, improving the evaluation of power in e-e collisions and solving an error in the temporal growth operator, when using the time-integration algorithm) and include some new features: in LoKI-B, a general implementation of anisotropic e-impact collisions; in LoKI-C, a new implementation of the thermal module, considering different boundary conditions; in LoKI, a major revision/update of the information displayed in the GUI, the first implementation of a logging system, and the first implementation of the coupling between LoKI-B and LoKI-C for post-discharge simulations (to be verified/extended for stability improvement and towards a full coupling between the tools, in future releases).

05/11/2022 By Luís Lemos Alves

LoKI-MC released as open-source tool

The LisbOn Kinetics Monte Carlo (LoKI-MC) is a Monte Carlo code for electron kinetics simulations in low-temperature plasmas, excited by uniform DC electric fields from different gas mixtures. LoKI-MC is written in C++, benefiting from a highly-efficient object-oriented structure, and was released as open-source code licensed under the GNU general public license.
The code follows the strategy and data organization of the two-term counterpart LisbOn KInetics Boltzmann solver (LoKI-B), since it easily addresses any complex mixture of atomic/molecular species, describing electron collisions with any target state (electronic, vibrational and rotational), characterized by any user-prescribed population.
On input, the code requires the working conditions, the gas-mixture composition, the distributions of populations for the levels of the atomic/molecular gases considered, and the relevant sets of electron-scattering cross sections obtained from the open-access website LXCat. On output, it yields the electron energy and velocity distribution functions, the electron swarm parameters, the collision rate-coefficients, and the electron power absorbed from the electric field and transferred to the different collisional channels.

More information about LoKI-MC can be obtained from the paper T. C. Dias et al, Computer Physics Communications 108554 (2022).

01/10/2022 By Luís Lemos Alves

Developers of LoKI-B sign license agreement with Plasma Matters B.V.

The developers of LoKI-B signed a license agreement with Plasma Matters B.V., setting a new technical and scientific collaboration to foster advances in the modelling and simulation of low temperature plasmas.
Plasma Matters is a software company that specializes in plasma modelling and numerical simulations. Plasma Matters offers scientific expertise and the industry-strength plasma simulation software PLASIMO to academic and industrial customers that employ plasma technologies.
The license agreement signed with Plasma Matters grants the company permission to convey LoKI-B as part of its own software products. The agreement will consolidate LoKI-B, contributing to widen its dissemination, and enhancing the features of PLASIMO.

More details here.

22/03/2022 By Luís Lemos Alves

LoKI v3.0.0 and LoKI-B v2.1.0 released

Versions 3.0.0 of the LisbOn KInetics suite (LoKI) and the LisbOn KInetics Boltzmann solver (LoKI-B) were released on March 4, 2022. The new versions solve some important bugs (in the e-e collision operator, in LoKI-B; in the correct use of the electron mobility for HF simulations and in the calculations of the thermal module, in LoKI-C) and feature the first implementation of a surface kinetics (including a revision of transport functions).

11/03/2022 By Luís Lemos Alves

LoKI-B v2.0.0 released

Version 2.0.0 of the LisbOn KInetics Boltzmann solver (LoKI-B) was released as open-source code on June 11, 2021. The new version extends the original capabilities of the numerical tool to accept time-dependent non-oscillatory electric fields as input data, and to calculate time-dependent electron energy distribution functions.
The release was simultaneous with the publication of the PSST journal article On the quasi-stationary approach to solve the electron Boltzmann equation in pulsed plasmas, by A Tejero-del-Caz et al.

03/07/2021 By Luís Lemos Alves

Kick-off of the LisbOn KInetics website

The LisbOn KInetics (LoKI) website was released on September 15, 2019.
LoKI 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.
The website will bring updated information on the development of the tool and the consolidation of the corresponding kinetic schemes and data.

15/09/2019 By Luís Lemos Alves

LoKI-B released as open-source tool

The simulation tool LisbOn KInetics (LoKI), developed in the framework of project KIT-PLASMEBA, couples two main calculation blocks: a Boltzmann solver (LoKI-B), released as open-source code on March 23, 2019, and a Chemistry solver (LoKI-C).
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), characterised by any user-prescribed population.

23/03/2019 By Luís Lemos Alves