TY - JOUR A1 - Reinker, Felix A1 - Wagner, Robert A1 - Hake, Leander A1 - aus der Wiesche, Stefan T1 - High subsonic flow of an organic vapor past a circular cylinder JF - Experiments in Fluids Y1 - 2021 VL - 62 IS - 54 ER - TY - CHAP A1 - aus der Wiesche, Stefan A1 - Reinker, Felix A1 - Wagner, Robert A1 - Hake, Leander A1 - Passmann, Maximilian T1 - Critical and Choking Mach Numbers for Organic Vapor Flows Through Turbine Cascades T2 - Proceedings ASME Turbo Expo, virtual conference 7.-11.6.2021, Paper No. GT2021-59013 Y1 - 2021 U6 - http://dx.doi.org/10.1115/GT2021-59013 ER - TY - CHAP A1 - Cinella, Paola A1 - Matar, Camille A1 - Gloerfelt, Xavier A1 - Reinker, Felix A1 - aus der Wiesche, Stefan T1 - Subsonic organic vapor flow past a circular cylinder T2 - Proceedings 6th International Seminar on ORC Power Systems ORC2021, October 11.-13.2021, München Y1 - 2021 ER - TY - CHAP A1 - Hake, Leander A1 - aus der Wiesche, Stefan A1 - Cinella, Paola T1 - Experimental and numerical assessment of an asymptotically correct choking Mach number correlation for organic vapor flows through turbine cascades T2 - Proceedings 6th International Seminar on ORC Power Systems ORC2021, October 11.-13.2021, München Y1 - 2021 ER - TY - CHAP A1 - Schollmeier, Jan-Niklas A1 - aus der Wiesche, Stefan T1 - A user-friendly Pitot probe data reduction Excel-Refprop-Routine for non-ideal gas flow applications T2 - Proceedings 6th International Seminar on ORC Power Systems ORC2021, October 11.-13.2021, München Y1 - 2021 CY - München ER - TY - CHAP A1 - aus der Wiesche, Stefan A1 - Reinker, Felix T1 - Dimensional analysis and performance laws for organic vapor flow turbomachinery T2 - Proceedings 6th International Seminar on ORC Power Systems ORC2021, October 11.-13.2021, München Y1 - 2021 ER - TY - CHAP A1 - Hake, Leander A1 - Reinker, Felix A1 - Wagner, Robert A1 - aus der Wiesche, Stefan A1 - Schatz, Markus T1 - The Profile Loss of Additive Manufactured Blades for Organic Rankine Cycle Turbines T2 - Proceedings European Turbomachinery Conference (ETC) 14, 12.-16.04.2021, Gdansk, Polen Y1 - 2021 ER - TY - CHAP A1 - Sundermeier, Stephan A1 - Passmann, Maximilian A1 - aus der Wiesche, Stefan A1 - Kenig, Eugeny Y. T1 - Flow in Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers T2 - Proceedings European Turbomachinery Conference (ETC) 14, 12.-16.04.2021, Gdansk, Polen Y1 - 2021 ER - TY - JOUR A1 - Passmann, Maximilian A1 - aus der Wiesche, Stefan A1 - Joos, Franz T1 - Numerical Calibration of Three-Dimensional Printed Five-Hole Probes for the Transonic Flow Regime JF - ASME Journal of Fluids Engineering Y1 - 2021 VL - 143 IS - 5 SP - 051501 (12 pages) ER - TY - JOUR A1 - Passmann, Maximilian A1 - aus der Wiesche, Stefan A1 - Povey, Thomas A1 - Bergmann, Detlef T1 - Effect of Reynolds Number on Five-Hole Probe Performance: Experimental Study of the Open-Access Oxford Probe JF - ASME Journal of Turbomachinery Y1 - 2021 VL - 143 IS - 9 SP - 091003 (9 pages) ER - TY - GEN A1 - Brockmann, Matthias A1 - Kröger, Moritz T1 - Entering the World of Internet of Production – Get Rid of the Not-Invented-Here-Syndrome and Start Making Software Components Foolproof! KW - Digitalisierung KW - Digitaler Schatten KW - Internet of Production Y1 - 2021 UR - https://podcasts.apple.com/gb/podcast/10-entering-the-world-of-internet-of-production-get/id1535764402?i=1000526020440 ER - TY - JOUR A1 - Pennekamp, Jan A1 - Buchholz, Erik A1 - Dahlmanns, Markus A1 - Kunze, Ike A1 - Braun, Stefan A1 - Wagner, Eric A1 - Brockmann, Matthias A1 - Wehrle, Klaus A1 - Henze, Martin T1 - Collaboration is not Evil: A Systematic Look at Security Research for Industrial Use JF - Learning from Authoritative Security Experiment Results (LASER) 2020 N2 - Following the recent Internet of Things-induced trends on digitization in general, industrial applications will further evolve as well. With a focus on the domains of manufacturing and production, the Internet of Production pursues the vision of a digitized, globally interconnected, yet secure environment by establishing a distributed knowledge base. Background. As part of our collaborative research of advancing the scope of industrial applications through cybersecurity and privacy, we identified a set of common challenges and pitfalls that surface in such applied interdisciplinary collaborations. Aim. Our goal with this paper is to support researchers in the emerging field of cybersecurity in industrial settings by formalizing our experiences as reference for other research efforts, in industry and academia alike. Method. Based on our experience, we derived a process cycle of performing such interdisciplinary research, from the initial idea to the eventual dissemination and paper writing. This presented methodology strives to successfully bootstrap further research and to encourage further work in this emerging area. Results. Apart from our newly proposed process cycle, we report on our experiences and conduct a case study applying this methodology, raising awareness for challenges in cybersecurity research for industrial applications. We further detail the interplay between our process cycle and the data lifecycle in applied research data management. Finally, we augment our discussion with an industrial as well as an academic view on this research area and highlight that both areas still have to overcome significant challenges to sustainably and securely advance industrial applications. Conclusions. With our proposed process cycle for interdisciplinary research in the intersection of cybersecurity and industrial application, we provide a foundation for further research. We look forward to promising research initiatives, projects, and directions that emerge based on our methodological work. KW - Data security KW - Industrie 4.0 KW - Internet of Things Y1 - 2021 UR - https://www.comsys.rwth-aachen.de/fileadmin/papers/2021/2021-pennekamp-laser-collaboration.pdf U6 - http://dx.doi.org/10.14722/laser-acsac.2020.23088 ER - TY - CHAP A1 - Becker, Marco A1 - Brockmann, Matthias A1 - Niemietz, Philipp A1 - Trauth, Daniel A1 - Bergs, Thomas A1 - Brecher, Christian ED - Trauth, Daniel ED - Bergs, Thomas ED - Prinz, Wolfgang T1 - Das Internet of Production als Fundament der Datenverwertung in der Produktion T2 - Monetarisierung von technischen Daten / Hrsg. Daniel Trauth, Thomas Bergs, Wolfgang Prinz N2 - Das Internet of Things entfaltet erst durch die Überwindung von bestehenden Produkt- und Industriegrenzen sein volles ökonomisches Potenzial. Trotzdem werden Cyberphysische Systeme in der Forschung bisher oftmals isoliert betrachtet. Der Begriff des Internet of Production (IoP) steht für die Vision eines übergreifenden Austauschs von Daten und Informationen zwischen Produktentwicklung, Produktion und Nutzungsphase – über bestehende Organisationsgrenzen hinaus. Die Realisierung des IoP ist mit Herausforderungen im Bereich der datengetriebenen Modellierung sowie der Infrastruktur verbunden. In diesem Buchbeitrag werden die bestehenden Herausforderungen erläutert und Lösungsansätze skizziert. Der Schwerpunkt liegt auf der datengetriebenen Modellierung. Im Speziellen wird die Problematik des Lernens von kausalen Zusammenhängen, die Interpretierbarkeit von Machine-Learning-Modellen sowie die Integration von Domänenwissen in Lernalgorithmen diskutiert. Abschließend werden zwei Anwendungsbeispiele des „Digital Material Shadows“ vorgestellt. Diese veranschaulichen wie mithilfe von Machine Learning Erkenntnisse über den Materialzustand eines Werkstücks gewonnen werden können. Ziel dieser Digital Material Shadows ist es, langfristig Fertigungsprozesse adaptiv an die individuellen Materialeigenschaften des vorliegenden Werkstücks bzw. Rohmaterials anzupassen. KW - Digitalisierung KW - Industrie 4.0 KW - Digitaler Schatten KW - Geschäftsmodelle Y1 - 2021 U6 - http://dx.doi.org/10.1007/978-3-662-62915-4_15 SP - 275 EP - 295 PB - Springer Vieweg CY - Berlin, Heidelberg ER - TY - JOUR A1 - Elfering, Michael A1 - Annas, Sven A1 - Jantzen, Hans-Arno A1 - Janoske, Uwe T1 - Method for time-of-flight estimation of low frequency acoustic signals in reverberant and noisy environment with sparse impulse response JF - Meas. Sci. Technol. (Measurement Science and Technology) Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-143695 ER - TY - JOUR A1 - Kapitz, Marek A1 - aus der Wiesche, Stefan A1 - Kadic, Samir A1 - Strehle, Steffen T1 - An experimental test of the Mocikat-Herwig theory of local turbulent heat transfer measurements on cold objects JF - Heat and Mass Transfer N2 - Experimental results are presented of a test of the theory of local turbulent heat transfer measurements proposed by Mocikat and Herwig in 2007. A miniaturized multi-layer heat transfer sensor was developed and employed in this study. The new heat transfer sensor was designed to work in air and liquids, and this capability enabled the simultaneous investigation of different Prandtl numbers. Two basic configurations, namely the flow past a blunt plate and the flow past an inclined square cylinder, were investigated in test sections of wind and water tunnels. Convective heat transfer coefficients were obtained through conventional testing (i.e., employing thoroughly heated test objects) and using the new miniaturized sensor approach (i.e., utilizing cold test objects without heating). The main prediction of the Mocikat-Herwig theory that a specific thermal adjustment coefficient of the employed actual miniaturized heat transfer sensor should exist in the fully turbulent flow regime was proven for developed two-dimensional flow. The observed effect of the Prandtl number on this coefficient was in good agreement with the prediction of the asymptotic expansion method. The square cylinder results indicated the inherent limits of the local turbulent heat transfer measurement approach, as suggested by Mocikat and Herwig. Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-142353 ER - TY - CHAP A1 - Weber, Lukas A1 - Annas, Sven A1 - Messing, Georg A1 - Elfering, Michael A1 - Jantzen, Hans-Arno A1 - Scholz, Jürgen T1 - Entwicklung von Messverfahren zur Geschwindigkeitsmessung in Biogasanlagen T2 - Biogas in der Landwirtschaft / KTBL (Hg.) Y1 - 2021 SN - 978-3-945088-83-8 SP - 206 EP - 208 ER - TY - CHAP A1 - Buntkiel, Lukas A1 - Budelmann, Christoph A1 - Heller, Andreas A1 - Annas, Sven A1 - Reinecke, Sebastian A1 - Hampel, Uwe T1 - Ein „Wireless Sensor Network“ zur Prozesscharakterisierung in Biogasfermentern T2 - Biogas in der Landwirtschaft / KTBL (Hg.) Y1 - 2021 SN - 978-3-945088-83-8 SP - 221 EP - 223 ER -