The first SIMS EUROSIM conference on Simulation and Modelling (SIMS EUROSIM 2021) and 62nd SIMS conference on Simulation and Modelling (SIMS 2021) were organized as a joint virtual conference. Originally, this conference was planned to be organized in Oulu, Finland. The COVID-19 pandemic presented tremendous challenges for the global research community and for the entire world. The organizers were first postponing the deadlines and keeping the plan of organizing the conference in person. Since the pandemic was continuing strongly, the plans were changed: the conference was decided to organize as a virtual conference in September 2021.
The Scandinavian Simulation Society consists of members from five Nordic countries: Denmark, Finland, Norway, Sweden, and Iceland. The goal of SIMS is to further develop the science and practice of modelling and simulation in all application areas and to be a forum for information interchange between professionals and non-professionals in the Nordic countries. SIMS is a member society of The Federation of European Simulation Societies (EUROSIM) was set up in 1989. The purpose of EUROSIM is to provide a European forum for regional and national simulation societies to promote the advancement of modelling and simulation in industry, research and development. EUROSIM consists of 17 European Simulation Societies. The Scandinavian simulation society (SIMS) had Board and Annual Meetings during the conference.

The conference program consisted of three keynote presentations, 68 regular presentations and a panel discussion. The proceedings include 67 full papers. The keynotes are included as abstracts. The call for papers resulted in 83 submissions prepared by 152 authors from nine countries. The reviews of all submissions were done by four chairs, 19 IPC members and 37 international reviewers. Full papers were selected on the grounds of academic merit and relevance to the conference theme. Each submission had 2-4 reviews and the acceptance rate was 83% for the full papers published in the proceedings.
The SIMS 61 conference covered broad aspects of simulation, modeling and optimization in engineering applications, including many papers on multivariate data analysis, machine learning, control, diagnostics, decision making, power plants, energy storage, oil and gas industry, CO2 capture, computational fluid dynamic, wastewater treatment, biosystems and epidemiological models.

Panel discussions were organized on modelling and simulation in tackling challenges of the climate change. The discussion focused on three areas: biofuels, renewable energy sources and quality of measurements. The audience asked about next generation nuclear systems, biogas and CO2 emissions. The virtual conference did not include technical tours. Industrial and environmental applications, development of modelling and simulation tools and strong support for PhD students continue for stimulating process development model-based automation.

We would like to express our sincere thanks to the keynote speakers, authors, session chairs, members of the program committee and additional reviewers who made this conference such an outstanding success. Finally, we hope that you will find the proceedings to be a valuable resource in your professional, research, and educational activities whether you are a student, academic, researcher, or a practicing professional.

Esko Juuso, Bernt Lie, Erik Dahlquist, and Jari Ruuska

The Proceedings have been published by Linköping University Press in Linköping Electronic Conference Proceedings No. 185 :
ISSN: 1650-3686, eISSN: 1650-3740, ISBN: 978-91-7929-219-5.

DOI:

https://doi.org/10.3384/ecp21185

https://doi.org/10.3384/ecp21185

Entire Proceedings: 68 papers, 512+22 pages, 59929 KB.