@inproceedings{BungOertel2019, author = {Bung, Daniel B. and Oertel, Mario}, title = {Wave breaking over a submerged horizontal plate: Optical Flow, LES and RANS}, series = {E-proceedings of the 38th IAHR World Congress September 1-6, 2019, Panama City, Panama}, booktitle = {E-proceedings of the 38th IAHR World Congress September 1-6, 2019, Panama City, Panama}, doi = {10.3850/38WC092019-0509}, pages = {3690 -- 3698}, year = {2019}, language = {en} } @article{HennesLaumann2021, author = {Hennes, Philipp and Laumann, J{\"o}rg}, title = {Ansatz der Drehbehinderung aus Koppelpfetten mit d{\"u}nnwandigen kaltgeformten Z-Profilen}, series = {Stahlbau}, volume = {90}, journal = {Stahlbau}, number = {3}, publisher = {Ernst \& Sohn}, address = {Berlin}, issn = {1437-1049}, doi = {10.1002/stab.202000104}, pages = {158 -- 168}, year = {2021}, language = {de} } @article{BungCrookstonValero2020, author = {Bung, Daniel B. and Crookston, Brian M. and Valero, Daniel}, title = {Turbulent free-surface monitoring with an RGB-D sensor: the hydraulic jump case}, series = {Journal of Hydraulic Research}, journal = {Journal of Hydraulic Research}, publisher = {Taylor \& Francis}, address = {London}, issn = {1814-2079}, doi = {10.1080/00221686.2020.1844810}, year = {2020}, language = {en} } @article{ErpicumCrookstonBombardellietal.2021, author = {Erpicum, Sebastien and Crookston, Brian M. and Bombardelli, Fabian and Bung, Daniel B. and Felder, Stefan and Mulligan, Sean and Oertel, Mario and Palermo, Michele}, title = {Hydraulic structures engineering: An evolving science in a changing world}, series = {Wires Water}, volume = {8}, journal = {Wires Water}, number = {2}, publisher = {Wiley}, address = {Weinheim}, issn = {2049-1948}, doi = {10.1002/wat2.1505}, year = {2021}, language = {en} } @article{ValeroSchalkoFriedrichetal.2021, author = {Valero, Daniel and Schalko, Isabella and Friedrich, Heide and Abad, Jorge D. and Bung, Daniel B. and Donchyts, Gennadii and Felder, Stefan and Ferreira, Rui M. L. and Hohermuth, Benjamin and Kramer, Matthias and Li, Danxun and Mendes, Luis and Moreno-Rodenas, Antonio and Nones, Michael and Paron, Paolo and Ruiz-Villanueva, Virginia and Wang, Ruo-Qian and Franca, Mario J.}, title = {Pathways towards democratization of hydro-environment observations and data}, series = {Iahr White Paper Series}, journal = {Iahr White Paper Series}, number = {1}, publisher = {International Association for Hydro-Environment Engineering and Research (IAHR)}, pages = {1 -- 9}, year = {2021}, language = {en} } @article{ValeroBungErpicumetal.2022, author = {Valero, Daniel and Bung, Daniel B. and Erpicum, Sebastien and Peltier, Yann and Dewals, Benjamin}, title = {Unsteady shallow meandering flows in rectangular reservoirs: a modal analysis of URANS modelling}, series = {Journal of Hydro-environment Research}, journal = {Journal of Hydro-environment Research}, number = {In Press}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1570-6443}, doi = {10.1016/j.jher.2022.03.002}, year = {2022}, abstract = {Shallow flows are common in natural and human-made environments. Even for simple rectangular shallow reservoirs, recent laboratory experiments show that the developing flow fields are particularly complex, involving large-scale turbulent structures. For specific combinations of reservoir size and hydraulic conditions, a meandering jet can be observed. While some aspects of this pseudo-2D flow pattern can be reproduced using a 2D numerical model, new 3D simulations, based on the unsteady Reynolds-Averaged Navier-Stokes equations, show consistent advantages as presented herein. A Proper Orthogonal Decomposition was used to characterize the four most energetic modes of the meandering jet at the free surface level, allowing comparison against experimental data and 2D (depth-averaged) numerical results. Three different isotropic eddy viscosity models (RNG k-ε, k-ε, k-ω) were tested. The 3D models accurately predicted the frequency of the modes, whereas the amplitudes of the modes and associated energy were damped for the friction-dominant cases and augmented for non-frictional ones. The performance of the three turbulence models remained essentially similar, with slightly better predictions by RNG k-ε model in the case with the highest Reynolds number. Finally, the Q-criterion was used to identify vortices and study their dynamics, assisting on the identification of the differences between: i) the three-dimensional phenomenon (here reproduced), ii) its two-dimensional footprint in the free surface (experimental observations) and iii) the depth-averaged case (represented by 2D models).}, language = {en} } @techreport{KlugeKirschBudach2022, author = {Kluge, Katharina and Kirsch, Ansgar and Budach, Christoph}, title = {Digitale Lehre in der Geotechnik: Aktueller Stand und weitere Entwicklungen}, series = {geotechntik}, journal = {geotechntik}, number = {Early View}, publisher = {Ernst \& Sohn}, address = {Berlin}, issn = {0172-6145 (Print)}, doi = {10.1002/gete.202200013}, pages = {8 Seiten}, year = {2022}, abstract = {Digitale Lehrmaterialien werden seit mehreren Jahren in den Hochschulen eingesetzt und er{\"o}ffnen ganz neue Wege zur Vermittlung des Lehrstoffs. Die Erstellung dieser Lehrmaterialien kann allerdings je nach Art und Qualit{\"a}t sehr zeitintensiv sein und f{\"u}r Lehrende einen großen Mehraufwand bedeuten. Im Rahmen eines Kooperationsprojekts zur Erstellung von Lehrvideos f{\"u}r geotechnische Feld- und Laborversuche haben die Autoren dieses Beitrags allerdings die Erfahrung gemacht, dass das gemeinsame, hochschul{\"u}bergreifende Erstellen von Lehrmaterialien viele Vorteile mit sich bringt. Dadurch inspiriert, f{\"u}hrten die Autoren dieses Berichts eine Umfrage unter den deutschsprachigen Geotechnik-Lehrst{\"u}hlen der (Technischen) Universit{\"a}ten und (Fach-)Hochschulen durch. Nach drei Semestern, in denen Lehrveranstaltungen an den Hochschulen aufgrund der Corona-Pandemie {\"u}berwiegend digital durchgef{\"u}hrt werden mussten, war es ein Ziel dieser Umfrage, den Bestand und den Einsatz digitaler Lehrmaterialien im Fachgebiet Geotechnik zu erheben. Ein weiteres Ziel war die Initiierung eines Netzwerks, in dem sich Geotechnik-Professorinnen und -Professoren zu Lehrthemen austauschen k{\"o}nnen und gemeinsam (digitale) Lehrmaterialien erstellen und nutzen. Der vorliegende Beitrag stellt das gemeinsame Lehrprojekt der Autoren vor, pr{\"a}sentiert die Ergebnisse der durchgef{\"u}hrten Umfrage und berichtet {\"u}ber die ersten Aktivit{\"a}ten des neuen Netzwerks.}, language = {de} } @article{vonHaefenKrautwaldStolleetal.2022, author = {von H{\"a}fen, Hajo and Krautwald, Clemens and Stolle, Jacob and Bung, Daniel Bernhard and Goseberg, Nils}, title = {Overland flow of broken solitary waves over a two-dimensional coastal plane}, series = {Coastal Engineering}, volume = {175}, journal = {Coastal Engineering}, number = {August}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1872-7379}, doi = {10.1016/j.coastaleng.2022.104125}, pages = {14 Seiten}, year = {2022}, abstract = {Landslides, rock falls or related subaerial and subaqueous mass slides can generate devastating impulse waves in adjacent waterbodies. Such waves can occur in lakes and fjords, or due to glacier calving in bays or at steep ocean coastlines. Infrastructure and residential houses along coastlines of those waterbodies are often situated on low elevation terrain, and are potentially at risk from inundation. Impulse waves, running up a uniform slope and generating an overland flow over an initially dry adjacent horizontal plane, represent a frequently found scenario, which needs to be better understood for disaster planning and mitigation. This study presents a novel set of large-scale flume test focusing on solitary waves propagating over a 1:14.5 slope and breaking onto a horizontal section. Examining the characteristics of overland flow, this study gives, for the first time, insight into the fundamental process of overland flow of a broken solitary wave: its shape and celerity, as well as its momentum when wave breaking has taken place beforehand.}, language = {en} } @article{BungErpicumTullis2020, author = {Bung, Daniel Bernhard and Erpicum, S{\´e}bastien and Tullis, Blanke P.}, title = {Advances in hydraulic structures engineering}, series = {Journal of Hydraulic Engineering}, volume = {147}, journal = {Journal of Hydraulic Engineering}, number = {1}, publisher = {ASCE}, address = {Reston, Va.}, issn = {0733-9429 (Druckausgabe)}, doi = {10.1061/(ASCE)HY.1943-7900.0001851}, pages = {1 Seite}, year = {2020}, language = {en} } @book{UibelPeterson2019, author = {Uibel, Thomas and Peterson, Leif Arne}, title = {Tagungsband Aachener Holzbautagung 2019}, editor = {Uibel, Thomas and Peterson, Leif Arne}, publisher = {FH Aachen}, address = {Aachen}, issn = {2197-4489}, pages = {140 Seiten ; Illustrationen, graph. Darst.}, year = {2019}, language = {de} } @book{UibelPeterson2013, author = {Uibel, Thomas and Peterson, Leif Arne}, title = {Tagungsband Aachener Holzbautagung 2013}, editor = {Uibel, Thomas and Peterson, Leif Arne}, publisher = {FH Aachen}, address = {Aachen}, issn = {2197-4489}, pages = {76 Seiten ; Illustrationen, graph. Darst.}, year = {2013}, language = {de} } @book{UibelPeterson2023, author = {Uibel, Thomas and Peterson, Leif Arne}, title = {Tagungsband Aachener Holzbautagung 2023}, editor = {Uibel, Thomas and Peterson, Leif Arne}, publisher = {FH Aachen}, address = {Aachen}, issn = {2197-4489}, year = {2023}, language = {de} } @article{PetersonOsterPeterson2020, author = {Peterson-Oster, Madeleine and Peterson, Leif Arne}, title = {Gewerbebau: Modellprojekt mit neuem elementiertem, freistehendem Fassadensystem}, series = {Bauen mit Holz, Der Zimmermann}, journal = {Bauen mit Holz, Der Zimmermann}, publisher = {Rudolf M{\"u}ller}, address = {K{\"o}ln}, issn = {0005-6545}, year = {2020}, abstract = {Die im Zuge einer Betriebs{\"u}bergabe anstehende Baumaßnahmen am eigenen B{\"u}ro- und Produktionsgeb{\"a}ude boten ideale Voraussetzung zur Anwendung einer raum­-kreierenden Außenhaut. Mit der elementierten, freistehenden Eichenholz-Fassade wurde ein bis dahin weitgehend funktionales Bauwerk substanzschonend und zugleich optisch ansprechender umgestaltet.}, language = {de} } @incollection{MoorkampPetersonUibel2023, author = {Moorkamp, Wilfried and Peterson, Leif Arne and Uibel, Thomas}, title = {Standardholzbr{\"u}cken f{\"u}r kommunale Geh- und Radwege}, series = {Strukturen, Formen und Prinzipien : Festschrift zum 60. Geburtstag von Univ.-Prof. Dr.-Ing. Martin Trautz}, booktitle = {Strukturen, Formen und Prinzipien : Festschrift zum 60. Geburtstag von Univ.-Prof. Dr.-Ing. Martin Trautz}, editor = {Wehren, Cedric}, publisher = {RWTH Aachen}, address = {Aachen}, isbn = {978-3-95886-500-6}, pages = {140 -- 165}, year = {2023}, language = {de} } @incollection{MoorkampPetersonUibel2022, author = {Moorkamp, Wilfried and Peterson, Leif Arne and Uibel, Thomas}, title = {Nachhaltige Holzbr{\"u}cken f{\"u}r Geh- und Radwege}, series = {Bauphysik Kalender 2022: Holzbau, 22. Jahrgang}, booktitle = {Bauphysik Kalender 2022: Holzbau, 22. Jahrgang}, editor = {Fouad, Nabil A.}, publisher = {Ernst \& Sohn}, address = {Berlin}, isbn = {9783433033609 (Print)}, doi = {10.1002/9783433611081.ch17}, pages = {574 -- 592}, year = {2022}, abstract = {Am Lehr- und Forschungsgebiet Holzbau der Fachhochschule Aachen wurden im Rahmen des Forschungsvorhabens „Nachhaltige Standardbr{\"u}cken in Holzbauweise" Standardtypen f{\"u}r Geh- und Radwegbr{\"u}cken entwickelt. Die Br{\"u}cken sind durch konsequente Umsetzungen von Maßnahmen des konstruktiven Holzschutzes f{\"u}r eine Nutzung von mehr als 80~Jahren konzipiert. Innovative L{\"o}sungen f{\"u}r Bauteile und Anschl{\"u}sse sowie Materialalternativen im Bereich des Belages und der Gel{\"a}nder erm{\"o}glichen eine wartungsarme Konstruktion und tragen somit zur Wirtschaftlichkeit und Nachhaltigkeit bei. Um den Einsatz der entwickelten Standardbr{\"u}ckentypen in der Praxis zu erleichtern, wurden Leistungsverzeichnisse, Musterstatiken, Musterzeichnungen und umfangreiche Detailkataloge als Unterst{\"u}tzung f{\"u}r Planer und Bauherren erstellt. Damit die Randbedingungen f{\"u}r eine lange Lebensdauer w{\"a}hrend der Nutzung der Br{\"u}cke erhalten bleiben, wurden Leitf{\"a}den f{\"u}r die Pflege und Wartung sowie f{\"u}r die Br{\"u}ckenpr{\"u}fung erarbeitet. Der Beitrag gibt Einblicke in das Forschungsvorhaben und seine Resultate.}, language = {de} } @incollection{DuffnerUibelPetersonetal.2023, author = {Duffner, Markus and Uibel, Thomas and Peterson, Leif Arne and Moorkamp, Wilfried}, title = {Cross Layers Light - Ein ressourceneffizientes und recyclebares Holz-Wandsystem}, series = {Bauphysik Kalender 2023: Nachhaltigkeit}, booktitle = {Bauphysik Kalender 2023: Nachhaltigkeit}, editor = {Fouad, Nabil A.}, publisher = {Ernst \& Sohn}, address = {Berlin}, isbn = {9783433033890 (Print)}, doi = {10.1002/9783433611289.ch13}, pages = {483 -- 501}, year = {2023}, abstract = {Ein neues tragendes, lagenweise aufgebautes Holzbau-Wandsystem und seine {\"o}konomische und statische Entwicklung werden vorgestellt. Randbedingungen wie Nachhaltigkeit, Ressourceneffizienz und eine beanspruchungsadaptive Konstruktionsweise sind f{\"u}r diese innovative Bauteilentwicklung von zentraler Bedeutung. Eine wesentliche Herausforderung ist die Herstellung der Verbindung der Lagen untereinander zu einem bauphysikalisch und statisch leistungsf{\"a}higen Wandsystem. Die Tragf{\"a}higkeit und Steifigkeit verschiedener Verbindungsvarianten wurden ebenso wie die Eigenschaften der Wandelemente analytisch, numerisch und experimentell untersucht.}, language = {de} } @incollection{Peterson2021, author = {Peterson, Leif Arne}, title = {Holzbau}, series = {Wof{\"u}r braucht man das eigentlich? Ein Handbuch f{\"u}r Mathematiklehrkr{\"a}fte der Sekundarstufe I und II}, booktitle = {Wof{\"u}r braucht man das eigentlich? Ein Handbuch f{\"u}r Mathematiklehrkr{\"a}fte der Sekundarstufe I und II}, editor = {Schl{\"u}ter, Dominik}, publisher = {BoD}, address = {Norderstedt}, isbn = {978-3-7543-2606-0}, pages = {21 -- 23}, year = {2021}, language = {de} } @inproceedings{BlankeSchmidtGoettscheetal.2022, author = {Blanke, Tobias and Schmidt, Katharina S. and G{\"o}ttsche, Joachim and D{\"o}ring, Bernd and Frisch, J{\´e}r{\^o}me and van Treeck, Christoph}, title = {Time series aggregation for energy system design: review and extension of modelling seasonal storages}, series = {Energy Informatics}, volume = {5}, booktitle = {Energy Informatics}, number = {1, Article number: 17}, editor = {Weidlich, Anke and Neumann, Dirk and Gust, Gunther and Staudt, Philipp and Sch{\"a}fer, Mirko}, publisher = {Springer Nature}, issn = {2520-8942}, doi = {10.1186/s42162-022-00208-5}, pages = {1 -- 14}, year = {2022}, abstract = {Using optimization to design a renewable energy system has become a computationally demanding task as the high temporal fluctuations of demand and supply arise within the considered time series. The aggregation of typical operation periods has become a popular method to reduce effort. These operation periods are modelled independently and cannot interact in most cases. Consequently, seasonal storage is not reproducible. This inability can lead to a significant error, especially for energy systems with a high share of fluctuating renewable energy. The previous paper, "Time series aggregation for energy system design: Modeling seasonal storage", has developed a seasonal storage model to address this issue. Simultaneously, the paper "Optimal design of multi-energy systems with seasonal storage" has developed a different approach. This paper aims to review these models and extend the first model. The extension is a mathematical reformulation to decrease the number of variables and constraints. Furthermore, it aims to reduce the calculation time while achieving the same results.}, language = {en} } @inproceedings{SchulzeBuxlohGross2021, author = {Schulze-Buxloh, Lina and Groß, Rolf Fritz}, title = {Miniature urban farming plant: a complex educational "Toy" for engineering students}, series = {The Future of Education 11th Edition 2021}, booktitle = {The Future of Education 11th Edition 2021}, pages = {4 Seiten}, year = {2021}, abstract = {Urban farming is an innovative and sustainable way of food production and is becoming more and more important in smart city and quarter concepts. It also enables the production of certain foods in places where they usually dare not produced, such as production of fish or shrimps in large cities far away from the coast. Unfortunately, it is not always possible to show students such concepts and systems in real life as part of courses: visits of such industry plants are sometimes not possible because of distance or are permitted by the operator for hygienic reasons. In order to give the students the opportunity of getting into contact with such an urban farming system and its complex operation, an industrial urban farming plant was set up on a significantly smaller scale. Therefore, all needed technical components like water aeriation, biological and mechanical filtration or water circulation have been replaced either by aquarium components or by self-designed parts also using a 3D-printer. Students from different courses like mechanical engineering, smart building engineering, biology, electrical engineering, automation technology and civil engineering were involved in this project. This "miniature industrial plant" was also able to start operation and has now been running for two years successfully. Due to Corona pandemic, home office and remote online lectures, the automation of this miniature plant should be brought to a higher level in future for providing a good control over the system and water quality remotely. The aim of giving the student a chance to get to know the operation of an urban farming plant was very well achieved and the students had lots of fun in "playing" and learning with it in a realistic way.}, language = {en} } @inproceedings{MohanGrossMenzeletal.2021, author = {Mohan, Nijanthan and Groß, Rolf Fritz and Menzel, Karsten and Theis, Fabian}, title = {Opportunities and Challenges in the Implementation of Building Information Modeling for Prefabrication of Heating, Ventilation and Air Conditioning Systems in Small and Medium-Sized Contracting Companies in Germany - A Case Study}, series = {WIT Transactions on The Built Environment, Vol. 205}, booktitle = {WIT Transactions on The Built Environment, Vol. 205}, publisher = {WIT Press}, address = {Southampton}, issn = {1743-3509}, doi = {10.2495/BIM210101}, pages = {117 -- 126}, year = {2021}, abstract = {FEven though BIM (Building Information Modelling) is successfully implemented in most of the world, it is still in the early stages in Germany, since the stakeholders are sceptical of its reliability and efficiency. The purpose of this paper is to analyse the opportunities and obstacles to implementing BIM for prefabrication. Among all other advantages of BIM, prefabrication is chosen for this paper because it plays a vital role in creating an impact on the time and cost factors of a construction project. The project stakeholders and participants can explicitly observe the positive impact of prefabrication, which enables the breakthrough of the scepticism factor among the small-scale construction companies. The analysis consists of the development of a process workflow for implementing prefabrication in building construction followed by a practical approach, which was executed with two case studies. It was planned in such a way that, the first case study gives a first-hand experience for the workers at the site on the BIM model so that they can make much use of the created BIM model, which is a better representation compared to the traditional 2D plan. The main aim of the first case study is to create a belief in the implementation of BIM Models, which was succeeded by the execution of offshore prefabrication in the second case study. Based on the case studies, the time analysis was made and it is inferred that the implementation of BIM for prefabrication can reduce construction time, ensures minimal wastes, better accuracy, less problem-solving at the construction site. It was observed that this process requires more planning time, better communication between different disciplines, which was the major obstacle for successful implementation. This paper was carried out from the perspective of small and medium-sized mechanical contracting companies for the private building sector in Germany.}, language = {en} }