[{"publication_status":"published","publication_identifier":{"issn":["2474-395X"]},"citation":{"ama":"Holzmüller M, Linnemann M, Homberg W, Psyk V, Kräusel V, Kroos J. Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming. In: <i>Materials Research Proceedings</i>. Vol 25. Materials Research Forum LLC; 2023:11-18. doi:<a href=\"https://doi.org/10.21741/9781644902417-2\">10.21741/9781644902417-2</a>","chicago":"Holzmüller, Maik, Maik Linnemann, Werner Homberg, Verena Psyk, Verena  Kräusel, and Janika Kroos. “Proof of Concept for Incremental Sheet Metal Forming by Means of Electromagnetic and Electrohydraulic High-Speed Forming.” In <i>Materials Research Proceedings</i>, 25:11–18. Materials Research Forum LLC, 2023. <a href=\"https://doi.org/10.21741/9781644902417-2\">https://doi.org/10.21741/9781644902417-2</a>.","ieee":"M. Holzmüller, M. Linnemann, W. Homberg, V. Psyk, V. Kräusel, and J. Kroos, “Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming,” in <i>Materials Research Proceedings</i>, Nürnberg, 2023, vol. 25, pp. 11–18, doi: <a href=\"https://doi.org/10.21741/9781644902417-2\">10.21741/9781644902417-2</a>.","short":"M. Holzmüller, M. Linnemann, W. Homberg, V. Psyk, V. Kräusel, J. Kroos, in: Materials Research Proceedings, Materials Research Forum LLC, 2023, pp. 11–18.","mla":"Holzmüller, Maik, et al. “Proof of Concept for Incremental Sheet Metal Forming by Means of Electromagnetic and Electrohydraulic High-Speed Forming.” <i>Materials Research Proceedings</i>, vol. 25, Materials Research Forum LLC, 2023, pp. 11–18, doi:<a href=\"https://doi.org/10.21741/9781644902417-2\">10.21741/9781644902417-2</a>.","bibtex":"@inproceedings{Holzmüller_Linnemann_Homberg_Psyk_Kräusel_Kroos_2023, title={Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming}, volume={25}, DOI={<a href=\"https://doi.org/10.21741/9781644902417-2\">10.21741/9781644902417-2</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Holzmüller, Maik and Linnemann, Maik and Homberg, Werner and Psyk, Verena and Kräusel, Verena  and Kroos, Janika}, year={2023}, pages={11–18} }","apa":"Holzmüller, M., Linnemann, M., Homberg, W., Psyk, V., Kräusel, V., &#38; Kroos, J. (2023). Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming. <i>Materials Research Proceedings</i>, <i>25</i>, 11–18. <a href=\"https://doi.org/10.21741/9781644902417-2\">https://doi.org/10.21741/9781644902417-2</a>"},"intvolume":"        25","page":"11-18","date_updated":"2023-05-02T11:40:24Z","author":[{"first_name":"Maik","full_name":"Holzmüller, Maik","id":"82645","last_name":"Holzmüller"},{"full_name":"Linnemann, Maik","last_name":"Linnemann","first_name":"Maik"},{"first_name":"Werner","last_name":"Homberg","id":"233","full_name":"Homberg, Werner"},{"first_name":"Verena","full_name":"Psyk, Verena","last_name":"Psyk"},{"full_name":"Kräusel, Verena ","last_name":"Kräusel","first_name":"Verena "},{"first_name":"Janika","last_name":"Kroos","full_name":"Kroos, Janika"}],"volume":25,"doi":"10.21741/9781644902417-2","conference":{"end_date":"2023-04-05","location":"Nürnberg","name":"20th International Conference on Sheet Metal 2023","start_date":"2023-04-02"},"type":"conference","status":"public","_id":"43044","user_id":"82645","department":[{"_id":"156"}],"quality_controlled":"1","year":"2023","publisher":"Materials Research Forum LLC","date_created":"2023-03-17T10:23:18Z","title":"Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming","publication":"Materials Research Proceedings","abstract":[{"text":"<jats:p>Abstract. The combination of incremental sheet metal forming and high-speed forming offers new possibilities for flexible forming processes in the production of large sheet metal components of increased complexity with relatively low forming energies. In this paper, the general feasibility and process differences between the pulse-driven high-speed forming technologies of electrohydraulic and electromagnetic forming were investigated. An example component made of EN AW 6016 aluminum sheet metal was thus formed incrementally by both processes and the forming result evaluated by an optical 3D measurement system. For this purpose, a forming strategy for electromagnetic incremental forming (EMIF) was developed, tested and adapted to the electrohydraulic incremental forming process (EHIF). The discharge energy, the tool displacement and the pressure field of the forming zone were determined as relevant parameters for the definition of an adequate tool path strategy. It was found that the EHIF process is less affected by larger distances between the tool and the blank, while this is a critical variable for force application to the component during EMIF. On the other hand, the more uniform pressure distribution of the EMIF process is advantageous for forming large steady component areas. </jats:p>","lang":"eng"}],"keyword":["Incremental Sheet Forming","Aluminium","High-Speed Forming"],"language":[{"iso":"eng"}]},{"article_number":"40","_id":"43045","user_id":"82645","department":[{"_id":"156"}],"status":"public","type":"journal_article","doi":"10.3390/jmmp7010040","date_updated":"2023-05-02T11:40:35Z","author":[{"first_name":"Mykhaylo","last_name":"Knyazyev","full_name":"Knyazyev, Mykhaylo"},{"first_name":"Maik","full_name":"Holzmüller, Maik","id":"82645","last_name":"Holzmüller"},{"first_name":"Werner","id":"233","full_name":"Homberg, Werner","last_name":"Homberg"}],"volume":7,"citation":{"mla":"Knyazyev, Mykhaylo, et al. “Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 1, 40, MDPI AG, 2023, doi:<a href=\"https://doi.org/10.3390/jmmp7010040\">10.3390/jmmp7010040</a>.","bibtex":"@article{Knyazyev_Holzmüller_Homberg_2023, title={Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires}, volume={7}, DOI={<a href=\"https://doi.org/10.3390/jmmp7010040\">10.3390/jmmp7010040</a>}, number={140}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Knyazyev, Mykhaylo and Holzmüller, Maik and Homberg, Werner}, year={2023} }","short":"M. Knyazyev, M. Holzmüller, W. Homberg, Journal of Manufacturing and Materials Processing 7 (2023).","apa":"Knyazyev, M., Holzmüller, M., &#38; Homberg, W. (2023). Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires. <i>Journal of Manufacturing and Materials Processing</i>, <i>7</i>(1), Article 40. <a href=\"https://doi.org/10.3390/jmmp7010040\">https://doi.org/10.3390/jmmp7010040</a>","chicago":"Knyazyev, Mykhaylo, Maik Holzmüller, and Werner Homberg. “Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires.” <i>Journal of Manufacturing and Materials Processing</i> 7, no. 1 (2023). <a href=\"https://doi.org/10.3390/jmmp7010040\">https://doi.org/10.3390/jmmp7010040</a>.","ieee":"M. Knyazyev, M. Holzmüller, and W. Homberg, “Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 1, Art. no. 40, 2023, doi: <a href=\"https://doi.org/10.3390/jmmp7010040\">10.3390/jmmp7010040</a>.","ama":"Knyazyev M, Holzmüller M, Homberg W. Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires. <i>Journal of Manufacturing and Materials Processing</i>. 2023;7(1). doi:<a href=\"https://doi.org/10.3390/jmmp7010040\">10.3390/jmmp7010040</a>"},"intvolume":"         7","publication_status":"published","publication_identifier":{"issn":["2504-4494"]},"keyword":["impulse","forming","electrohydraulic","discharge","wire","pressure gauge","pressure field"],"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"<jats:p>The pressure fields generated by two simultaneous discharges have not been investigated on any notable scale for the electrohydraulic impulse forming method. In this study, the synchronicity of two discharges is ensured by the sequential connection of two wires mounted in two spark gaps in a common volume of liquid. The objective is to experimentally confirm the equilibrium of the energies evolved in two spark gaps by means of pressure measurements. In addition, multipoint membrane pressure gauges demonstrated the feasibility of easily recording detailed pressure maps. Based on the membrane deformation mechanism and material strengthening under static and impulse conditions, the processing procedure is further developed so as to achieve better accuracy in the determination of pressure field parameters. The practical equality of the pressure fields on the left and right halves of the flat-loaded area confirms the equality of energies evolved in the two spark gaps. The direct shock waves create zones with the most intensive loading. These results provide a basis for the development of new electrohydraulic technologies involving the application of two simultaneous discharges with equal energy and pressure parameters.</jats:p>"}],"publication":"Journal of Manufacturing and Materials Processing","title":"Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires","publisher":"MDPI AG","date_created":"2023-03-17T10:31:23Z","year":"2023","quality_controlled":"1","issue":"1"},{"project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"_id":"28941","user_id":"90390","department":[{"_id":"145"}],"language":[{"iso":"eng"}],"type":"conference_abstract","status":"public","date_updated":"2023-09-12T08:04:52Z","author":[{"first_name":"Reza","last_name":"Afsahnoudeh","id":"90390","full_name":"Afsahnoudeh, Reza"},{"first_name":"Maik","full_name":"Holzmüller, Maik","id":"82645","last_name":"Holzmüller"},{"last_name":"Bader","full_name":"Bader, Fabian","id":"65204","first_name":"Fabian"},{"last_name":"Homberg","id":"233","full_name":"Homberg, Werner","first_name":"Werner"},{"first_name":"Eugeny Y.","last_name":"Kenig","id":"665","full_name":"Kenig, Eugeny Y."}],"date_created":"2021-12-15T11:08:25Z","title":"Numerische Untersuchung von Oberflächenstrukturierung zur Erhöhung der Effizienz von Kissenplatten-Wärmeübertragern","conference":{"location":"Frankfurt am Main","end_date":"08.06.2023","start_date":"06.03.2023","name":"Jahrestreffen der DECHEMA-Fachgruppen Computational Fluid Dynamics und Wärme- und Stoffübertragung"},"year":"2023","citation":{"short":"R. Afsahnoudeh, M. Holzmüller, F. Bader, W. Homberg, E.Y. Kenig, in: 2023.","mla":"Afsahnoudeh, Reza, et al. <i>Numerische Untersuchung von Oberflächenstrukturierung Zur Erhöhung Der Effizienz von Kissenplatten-Wärmeübertragern</i>. 2023.","bibtex":"@inproceedings{Afsahnoudeh_Holzmüller_Bader_Homberg_Kenig_2023, title={Numerische Untersuchung von Oberflächenstrukturierung zur Erhöhung der Effizienz von Kissenplatten-Wärmeübertragern}, author={Afsahnoudeh, Reza and Holzmüller, Maik and Bader, Fabian and Homberg, Werner and Kenig, Eugeny Y.}, year={2023} }","apa":"Afsahnoudeh, R., Holzmüller, M., Bader, F., Homberg, W., &#38; Kenig, E. Y. (2023). <i>Numerische Untersuchung von Oberflächenstrukturierung zur Erhöhung der Effizienz von Kissenplatten-Wärmeübertragern</i>. Jahrestreffen der DECHEMA-Fachgruppen Computational Fluid Dynamics und Wärme- und Stoffübertragung, Frankfurt am Main.","chicago":"Afsahnoudeh, Reza, Maik Holzmüller, Fabian Bader, Werner Homberg, and Eugeny Y. Kenig. “Numerische Untersuchung von Oberflächenstrukturierung Zur Erhöhung Der Effizienz von Kissenplatten-Wärmeübertragern,” 2023.","ieee":"R. Afsahnoudeh, M. Holzmüller, F. Bader, W. Homberg, and E. Y. Kenig, “Numerische Untersuchung von Oberflächenstrukturierung zur Erhöhung der Effizienz von Kissenplatten-Wärmeübertragern,” presented at the Jahrestreffen der DECHEMA-Fachgruppen Computational Fluid Dynamics und Wärme- und Stoffübertragung, Frankfurt am Main, 2023.","ama":"Afsahnoudeh R, Holzmüller M, Bader F, Homberg W, Kenig EY. Numerische Untersuchung von Oberflächenstrukturierung zur Erhöhung der Effizienz von Kissenplatten-Wärmeübertragern. In: ; 2023."}},{"user_id":"98514","department":[{"_id":"9"},{"_id":"156"},{"_id":"321"}],"_id":"56626","language":[{"iso":"eng"}],"type":"conference","publication":"Lecture Notes in Mechanical Engineering","status":"public","date_created":"2024-10-15T12:00:48Z","author":[{"first_name":"Maik","full_name":"Holzmüller, Maik","id":"82645","last_name":"Holzmüller"},{"first_name":"Yi","full_name":"Gong, Yi","id":"98514","last_name":"Gong"},{"first_name":"Fabian","last_name":"Bader","full_name":"Bader, Fabian","id":"65204"},{"full_name":"Henke, Armin","last_name":"Henke","first_name":"Armin"},{"first_name":"Werner","last_name":"Homberg","full_name":"Homberg, Werner","id":"233"}],"publisher":"Springer Nature Switzerland","date_updated":"2024-10-15T12:09:06Z","doi":"10.1007/978-3-031-41023-9_69","title":"Numerical Approach to Model a Novel Electrohydraulic Incremental Forming Process for the Manufacture of Pillow Plate Heat Exchangers","publication_status":"published","publication_identifier":{"isbn":["9783031410222","9783031410239"],"issn":["2195-4356","2195-4364"]},"citation":{"mla":"Holzmüller, Maik, et al. “Numerical Approach to Model a Novel Electrohydraulic Incremental Forming Process for the Manufacture of Pillow Plate Heat Exchangers.” <i>Lecture Notes in Mechanical Engineering</i>, Springer Nature Switzerland, 2023, doi:<a href=\"https://doi.org/10.1007/978-3-031-41023-9_69\">10.1007/978-3-031-41023-9_69</a>.","short":"M. Holzmüller, Y. Gong, F. Bader, A. Henke, W. Homberg, in: Lecture Notes in Mechanical Engineering, Springer Nature Switzerland, Cham, 2023.","bibtex":"@inproceedings{Holzmüller_Gong_Bader_Henke_Homberg_2023, place={Cham}, title={Numerical Approach to Model a Novel Electrohydraulic Incremental Forming Process for the Manufacture of Pillow Plate Heat Exchangers}, DOI={<a href=\"https://doi.org/10.1007/978-3-031-41023-9_69\">10.1007/978-3-031-41023-9_69</a>}, booktitle={Lecture Notes in Mechanical Engineering}, publisher={Springer Nature Switzerland}, author={Holzmüller, Maik and Gong, Yi and Bader, Fabian and Henke, Armin and Homberg, Werner}, year={2023} }","apa":"Holzmüller, M., Gong, Y., Bader, F., Henke, A., &#38; Homberg, W. (2023). Numerical Approach to Model a Novel Electrohydraulic Incremental Forming Process for the Manufacture of Pillow Plate Heat Exchangers. <i>Lecture Notes in Mechanical Engineering</i>. <a href=\"https://doi.org/10.1007/978-3-031-41023-9_69\">https://doi.org/10.1007/978-3-031-41023-9_69</a>","ama":"Holzmüller M, Gong Y, Bader F, Henke A, Homberg W. Numerical Approach to Model a Novel Electrohydraulic Incremental Forming Process for the Manufacture of Pillow Plate Heat Exchangers. In: <i>Lecture Notes in Mechanical Engineering</i>. Springer Nature Switzerland; 2023. doi:<a href=\"https://doi.org/10.1007/978-3-031-41023-9_69\">10.1007/978-3-031-41023-9_69</a>","ieee":"M. Holzmüller, Y. Gong, F. Bader, A. Henke, and W. Homberg, “Numerical Approach to Model a Novel Electrohydraulic Incremental Forming Process for the Manufacture of Pillow Plate Heat Exchangers,” 2023, doi: <a href=\"https://doi.org/10.1007/978-3-031-41023-9_69\">10.1007/978-3-031-41023-9_69</a>.","chicago":"Holzmüller, Maik, Yi Gong, Fabian Bader, Armin Henke, and Werner Homberg. “Numerical Approach to Model a Novel Electrohydraulic Incremental Forming Process for the Manufacture of Pillow Plate Heat Exchangers.” In <i>Lecture Notes in Mechanical Engineering</i>. Cham: Springer Nature Switzerland, 2023. <a href=\"https://doi.org/10.1007/978-3-031-41023-9_69\">https://doi.org/10.1007/978-3-031-41023-9_69</a>."},"year":"2023","place":"Cham"},{"article_number":"7284","language":[{"iso":"eng"}],"_id":"56627","department":[{"_id":"831"},{"_id":"9"}],"user_id":"90390","abstract":[{"lang":"eng","text":"<jats:p>Pillow-plate heat exchangers (PPHEs) represent a suitable alternative to conventional shell-and-tube and plate heat exchangers. The inherent waviness of their channels promotes fluid mixing in the boundary layers and facilitates heat transfer. The overall thermo-hydraulic performance of PPHEs can further be enhanced by applying secondary surface structuring, thus increasing their competitiveness against conventional heat exchangers. In this work, various secondary structures applied on the PPHE surface were studied numerically to explore their potential to enhance near-wall mixing. Computational fluid dynamics (CFD) simulations of single-phase turbulent flow in the outer PPHE channel were performed and pressure drop, heat transfer coefficients, and overall thermo-hydraulic efficiency were determined. The simulation results clearly demonstrate a positive impact of secondary structuring on heat transfer in PPHEs.</jats:p>"}],"status":"public","publication":"Energies","type":"journal_article","title":"Thermo-Hydraulic Performance of Pillow-Plate Heat Exchangers with Secondary Structuring: A Numerical Analysis","doi":"10.3390/en16217284","date_updated":"2025-01-02T11:55:59Z","publisher":"MDPI AG","volume":16,"author":[{"last_name":"Afsahnoudeh","orcid":"https://orcid.org/0009-0001-3161-8036","full_name":"Afsahnoudeh, Reza","id":"90390","first_name":"Reza"},{"first_name":"Andreas","full_name":"Wortmeier, Andreas","id":"49825","last_name":"Wortmeier"},{"id":"82645","full_name":"Holzmüller, Maik","last_name":"Holzmüller","first_name":"Maik"},{"first_name":"Yi","full_name":"Gong, Yi","id":"98514","last_name":"Gong"},{"first_name":"Werner","last_name":"Homberg","id":"233","full_name":"Homberg, Werner"},{"last_name":"Kenig","id":"665","full_name":"Kenig, Eugeny","first_name":"Eugeny"}],"date_created":"2024-10-15T12:10:31Z","year":"2023","intvolume":"        16","citation":{"apa":"Afsahnoudeh, R., Wortmeier, A., Holzmüller, M., Gong, Y., Homberg, W., &#38; Kenig, E. (2023). Thermo-Hydraulic Performance of Pillow-Plate Heat Exchangers with Secondary Structuring: A Numerical Analysis. <i>Energies</i>, <i>16</i>(21), Article 7284. <a href=\"https://doi.org/10.3390/en16217284\">https://doi.org/10.3390/en16217284</a>","bibtex":"@article{Afsahnoudeh_Wortmeier_Holzmüller_Gong_Homberg_Kenig_2023, title={Thermo-Hydraulic Performance of Pillow-Plate Heat Exchangers with Secondary Structuring: A Numerical Analysis}, volume={16}, DOI={<a href=\"https://doi.org/10.3390/en16217284\">10.3390/en16217284</a>}, number={217284}, journal={Energies}, publisher={MDPI AG}, author={Afsahnoudeh, Reza and Wortmeier, Andreas and Holzmüller, Maik and Gong, Yi and Homberg, Werner and Kenig, Eugeny}, year={2023} }","short":"R. Afsahnoudeh, A. Wortmeier, M. Holzmüller, Y. Gong, W. Homberg, E. Kenig, Energies 16 (2023).","mla":"Afsahnoudeh, Reza, et al. “Thermo-Hydraulic Performance of Pillow-Plate Heat Exchangers with Secondary Structuring: A Numerical Analysis.” <i>Energies</i>, vol. 16, no. 21, 7284, MDPI AG, 2023, doi:<a href=\"https://doi.org/10.3390/en16217284\">10.3390/en16217284</a>.","ieee":"R. Afsahnoudeh, A. Wortmeier, M. Holzmüller, Y. Gong, W. Homberg, and E. Kenig, “Thermo-Hydraulic Performance of Pillow-Plate Heat Exchangers with Secondary Structuring: A Numerical Analysis,” <i>Energies</i>, vol. 16, no. 21, Art. no. 7284, 2023, doi: <a href=\"https://doi.org/10.3390/en16217284\">10.3390/en16217284</a>.","chicago":"Afsahnoudeh, Reza, Andreas Wortmeier, Maik Holzmüller, Yi Gong, Werner Homberg, and Eugeny Kenig. “Thermo-Hydraulic Performance of Pillow-Plate Heat Exchangers with Secondary Structuring: A Numerical Analysis.” <i>Energies</i> 16, no. 21 (2023). <a href=\"https://doi.org/10.3390/en16217284\">https://doi.org/10.3390/en16217284</a>.","ama":"Afsahnoudeh R, Wortmeier A, Holzmüller M, Gong Y, Homberg W, Kenig E. Thermo-Hydraulic Performance of Pillow-Plate Heat Exchangers with Secondary Structuring: A Numerical Analysis. <i>Energies</i>. 2023;16(21). doi:<a href=\"https://doi.org/10.3390/en16217284\">10.3390/en16217284</a>"},"publication_identifier":{"issn":["1996-1073"]},"publication_status":"published","issue":"21"}]