[{"publisher":"MDPI AG","date_created":"2023-04-27T16:21:44Z","title":"Flow in Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers","quality_controlled":"1","issue":"2","year":"2022","keyword":["Mechanical Engineering","Energy Engineering and Power Technology","Aerospace Engineering"],"language":[{"iso":"eng"}],"publication":"International Journal of Turbomachinery, Propulsion and Power","abstract":[{"lang":"eng","text":"<jats:p>In numerous turbomachinery applications, e.g., in aero-engines with regenerators for improving specific fuel consumption (SFC), heat exchangers with low-pressure loss are required. Pil low-plate heat exchangers (PPHE) are a novel exchanger type and promising candidates for high-speed flow applications due to their smooth profiles avoiding blunt obstacles in the flow path. This work deals with the overall system behavior and gas dynamics of pillow-plate channels. A pillow-plate channel was placed in the test section of a blow-down wind tunnel working with dry air, and compressible flow phenomena were investigated utilizing conventional and focusing schlieren optics; furthermore, static and total pressure measurements were performed. The experiments supported the assumption that the system behavior can be described through a Fanno–Rayleigh flow model. Since only wavy walls with smooth profiles were involved, linearized gas dynamics was able to cover important flow features within the channel. The effects of the wavy wall structures on pressure drop and Mach number distribution within the flow path were investigated, and a good qualitative agreement with theoretical and numerical predictions was found. The present analysis demonstrates that pressure losses in pillow-plate heat exchangers are rather low, although their strong turbulent mixing enables high convective heat transfer coefficients.</jats:p>"}],"date_updated":"2023-04-27T16:53:41Z","volume":7,"author":[{"last_name":"Sundermeier","full_name":"Sundermeier, Stephan","first_name":"Stephan"},{"full_name":"Passmann, Maximilian","last_name":"Passmann","first_name":"Maximilian"},{"full_name":"aus der Wiesche, Stefan","last_name":"aus der Wiesche","first_name":"Stefan"},{"last_name":"Kenig","id":"665","full_name":"Kenig, Eugeny Y.","first_name":"Eugeny Y."}],"doi":"10.3390/ijtpp7020012","publication_identifier":{"issn":["2504-186X"]},"publication_status":"published","intvolume":"         7","citation":{"short":"S. Sundermeier, M. Passmann, S. aus der Wiesche, E.Y. Kenig, International Journal of Turbomachinery, Propulsion and Power 7 (2022).","bibtex":"@article{Sundermeier_Passmann_aus der Wiesche_Kenig_2022, title={Flow in Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers}, volume={7}, DOI={<a href=\"https://doi.org/10.3390/ijtpp7020012\">10.3390/ijtpp7020012</a>}, number={212}, journal={International Journal of Turbomachinery, Propulsion and Power}, publisher={MDPI AG}, author={Sundermeier, Stephan and Passmann, Maximilian and aus der Wiesche, Stefan and Kenig, Eugeny Y.}, year={2022} }","mla":"Sundermeier, Stephan, et al. “Flow in Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers.” <i>International Journal of Turbomachinery, Propulsion and Power</i>, vol. 7, no. 2, 12, MDPI AG, 2022, doi:<a href=\"https://doi.org/10.3390/ijtpp7020012\">10.3390/ijtpp7020012</a>.","apa":"Sundermeier, S., Passmann, M., aus der Wiesche, S., &#38; Kenig, E. Y. (2022). Flow in Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers. <i>International Journal of Turbomachinery, Propulsion and Power</i>, <i>7</i>(2), Article 12. <a href=\"https://doi.org/10.3390/ijtpp7020012\">https://doi.org/10.3390/ijtpp7020012</a>","ama":"Sundermeier S, Passmann M, aus der Wiesche S, Kenig EY. Flow in Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers. <i>International Journal of Turbomachinery, Propulsion and Power</i>. 2022;7(2). doi:<a href=\"https://doi.org/10.3390/ijtpp7020012\">10.3390/ijtpp7020012</a>","ieee":"S. Sundermeier, M. Passmann, S. aus der Wiesche, and E. Y. Kenig, “Flow in Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers,” <i>International Journal of Turbomachinery, Propulsion and Power</i>, vol. 7, no. 2, Art. no. 12, 2022, doi: <a href=\"https://doi.org/10.3390/ijtpp7020012\">10.3390/ijtpp7020012</a>.","chicago":"Sundermeier, Stephan, Maximilian Passmann, Stefan aus der Wiesche, and Eugeny Y. Kenig. “Flow in Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers.” <i>International Journal of Turbomachinery, Propulsion and Power</i> 7, no. 2 (2022). <a href=\"https://doi.org/10.3390/ijtpp7020012\">https://doi.org/10.3390/ijtpp7020012</a>."},"_id":"44238","department":[{"_id":"145"}],"user_id":"90390","article_number":"12","type":"journal_article","status":"public"}]