---
_id: '44238'
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>
article_number: '12'
author:
- first_name: Stephan
  full_name: Sundermeier, Stephan
  last_name: Sundermeier
- first_name: Maximilian
  full_name: Passmann, Maximilian
  last_name: Passmann
- first_name: Stefan
  full_name: aus der Wiesche, Stefan
  last_name: aus der Wiesche
- first_name: Eugeny Y.
  full_name: Kenig, Eugeny Y.
  id: '665'
  last_name: Kenig
citation:
  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>
  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>
  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} }'
  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>.
  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>.'
  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>.
  short: S. Sundermeier, M. Passmann, S. aus der Wiesche, E.Y. Kenig, International
    Journal of Turbomachinery, Propulsion and Power 7 (2022).
date_created: 2023-04-27T16:21:44Z
date_updated: 2023-04-27T16:53:41Z
department:
- _id: '145'
doi: 10.3390/ijtpp7020012
intvolume: '         7'
issue: '2'
keyword:
- Mechanical Engineering
- Energy Engineering and Power Technology
- Aerospace Engineering
language:
- iso: eng
publication: International Journal of Turbomachinery, Propulsion and Power
publication_identifier:
  issn:
  - 2504-186X
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Flow in Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers
type: journal_article
user_id: '90390'
volume: 7
year: '2022'
...