This dataset is supplementary material to the submission “Contour boundary detection and measurement of boiling bubbles in microgravity”, by Xenophon Zabulis, Polykarpos Karamaounas, Ourania Oikonomidou, Sotiris Evgenidis, Margaritis Kostoglou, Axel Sielaff, Peter Stephan, Thodoris Karapantsios. The dataset contains videos that show the results of contour tracing and contact angle estimation of the proposed method on the reference data sets provided in [1]. The results are provided in a lossless video format. The reference datasets are 15 and denoted as D1 to D15. Data sets, D6, D7, D8, D9 and D15 record one bubble. The rest record multiple bubbles. All videos show the estimated contact points, the traced bubble contour, and the estimated contact angles. Each video frame shows also the dataset, bubble number, and frame number, in the center of the found bubble. Below this reading, the estimates of the contact angles are printed. Ground truth annotations for the bubbles shown in the first part can be found in [2]. [1] A. Sielaff, D. Mangini, O. Kabov, M. Raza, A. Garivalis, M. Zupančič, S. Dehaeck, S. Evgenidis, C. Jacobs, D. Van Hoof, O. Oikonomidou, X. Zabulis, P. Karamaounas, A. Bender, F. Ronshin, M. Schinnerl, J. Sebilleau, C. Colin, P. Di Marco, T. Karapantsios, I. Golobič, A. Rednikov, P. Colinet, P. Stephan, L. Tadrist, The multiscale boiling investigation on-board the international space station: An overview, Applied Thermal Engineering 205 (2022) 117932. doi:10.1016/j.applthermaleng.2021.117932 [2] X. Zabulis, P. Karamaounas, O. Oikonomidou, S. Evgenidis, M. Kostoglou, A. Sielaff, P. Stephan, T. Karapantsios, Ground truth annotations for boiling bubble detection and measurement in microgravity (Jan. 2023). doi:10.5281/zenodo.7553797. URL https://doi.org/10.5281/zenodo.7553797

The present work has been carried out in the framework of the European Space Agency Research projects AO-2004-111: BOILING, AO-1999-110: EVAPORATION, AO-2004-096: CONDENSATION. We thank all the Multiscale Boiling Science Team Members of the different institutions for their contribution in making possible the implementation of the experiment on-board the International Space Station: Technical University of Darmstadt, Institute for Technical Thermodynamics; Aix-Marseille University, IUSTI; University of Pisa; Institute of Thermal-Fluid Dynamics, ENEA; Institut de Mécanique des Fluides de Toulouse; Aristotle University of Thessaloniki; Transfers Interfaces and Processes, Université Libre de Bruxelles; University of Ljubljana; Kutatteladze Institute of Thermo-physics, Novosibirsk. The authors would also like to gratefully thank ESA, and in particular Daniele Mangini, Olivier Minster, Anne Pacros, Balazs Toth, and Marco Braibanti for their interest and support of the activities linked to Multiscale Boiling, and for the fruitful discussions. They would also like to thank AIRBUS (with particular gratitude to the project manager, Olaf Schoele-Schulz), as well as B.USOC for the kind cooperation (and especially Carla Jacobs and Denis Van Hoof) during all the pre-flight, in-flight and post-flight operations. Co-authors from the Technical University of Darmstadt would like to thank the German Aerospace Center (DLR) for the financial support in the framework of the Vapor II project, grant no. 50WM2257.