---
_id: '58165'
article_number: '131436'
author:
- first_name: Maximilian
  full_name: Neumann, Maximilian
  last_name: Neumann
- first_name: Marc
  full_name: Xia, Marc
  last_name: Xia
- first_name: René
  full_name: Pöschmann, René
  last_name: Pöschmann
- first_name: Amelie
  full_name: Merkel, Amelie
  last_name: Merkel
- first_name: Rolf
  full_name: Staud, Rolf
  last_name: Staud
- first_name: Hannes
  full_name: Schneider, Hannes
  last_name: Schneider
- first_name: Thomas
  full_name: Ehlert, Thomas
  id: '47151'
  last_name: Ehlert
- first_name: Jürgen
  full_name: Paschold, Jürgen
  last_name: Paschold
- first_name: Steffen
  full_name: Müller, Steffen
  last_name: Müller
- first_name: Laura-Selin
  full_name: Harding, Laura-Selin
  last_name: Harding
- first_name: Johannes
  full_name: Neukäufer, Johannes
  last_name: Neukäufer
- first_name: Christoph
  full_name: Hiller, Christoph
  last_name: Hiller
- first_name: Ilja
  full_name: Ausner, Ilja
  last_name: Ausner
- first_name: Ansor
  full_name: Gäbler, Ansor
  last_name: Gäbler
- first_name: Reiner
  full_name: Chromik, Reiner
  last_name: Chromik
- first_name: Jan
  full_name: Maćkowiak, Jan
  last_name: Maćkowiak
- first_name: Jerzy
  full_name: Maćkowiak, Jerzy
  last_name: Maćkowiak
- first_name: Jose Luis
  full_name: Sola Cervera, Jose Luis
  last_name: Sola Cervera
- first_name: Christian
  full_name: Geipel, Christian
  last_name: Geipel
- first_name: Jost
  full_name: Brinkmann, Jost
  last_name: Brinkmann
- first_name: Jürgen
  full_name: Bausa, Jürgen
  last_name: Bausa
- first_name: Sebastian
  full_name: Zeck, Sebastian
  last_name: Zeck
- first_name: Mark
  full_name: Hapke, Mark
  last_name: Hapke
- first_name: Florian
  full_name: Forner, Florian
  last_name: Forner
- first_name: Florian
  full_name: Habla, Florian
  last_name: Habla
- first_name: Manuel
  full_name: Knaup, Manuel
  last_name: Knaup
- first_name: Robin
  full_name: Schulz, Robin
  last_name: Schulz
- first_name: Michael
  full_name: Schultes, Michael
  last_name: Schultes
- first_name: Thomas
  full_name: Harlacher, Thomas
  last_name: Harlacher
- first_name: Nicole
  full_name: Lutters, Nicole
  id: '22006'
  last_name: Lutters
  orcid: 0009-0006-7828-8448
- first_name: Eugeny
  full_name: Kenig, Eugeny
  id: '665'
  last_name: Kenig
- first_name: Katharina
  full_name: Jasch, Katharina
  last_name: Jasch
- first_name: Mandy
  full_name: Paschetag, Mandy
  last_name: Paschetag
- first_name: Stephan
  full_name: Scholl, Stephan
  last_name: Scholl
- first_name: Marcus
  full_name: Grünewald, Marcus
  last_name: Grünewald
- first_name: Georg
  full_name: Brösigke, Georg
  last_name: Brösigke
- first_name: Jens-Uwe
  full_name: Repke, Jens-Uwe
  last_name: Repke
- first_name: Harald
  full_name: Klein, Harald
  last_name: Klein
- first_name: Sebastian
  full_name: Rehfeldt, Sebastian
  last_name: Rehfeldt
citation:
  ama: 'Neumann M, Xia M, Pöschmann R, et al. Towards reliable HETP values: Lessons
    learned from standardized separation efficiency measurements. <i>Separation and
    Purification Technology</i>. 2025;361. doi:<a href="https://doi.org/10.1016/j.seppur.2025.131436">10.1016/j.seppur.2025.131436</a>'
  apa: 'Neumann, M., Xia, M., Pöschmann, R., Merkel, A., Staud, R., Schneider, H.,
    Ehlert, T., Paschold, J., Müller, S., Harding, L.-S., Neukäufer, J., Hiller, C.,
    Ausner, I., Gäbler, A., Chromik, R., Maćkowiak, J., Maćkowiak, J., Sola Cervera,
    J. L., Geipel, C., … Rehfeldt, S. (2025). Towards reliable HETP values: Lessons
    learned from standardized separation efficiency measurements. <i>Separation and
    Purification Technology</i>, <i>361</i>, Article 131436. <a href="https://doi.org/10.1016/j.seppur.2025.131436">https://doi.org/10.1016/j.seppur.2025.131436</a>'
  bibtex: '@article{Neumann_Xia_Pöschmann_Merkel_Staud_Schneider_Ehlert_Paschold_Müller_Harding_et
    al._2025, title={Towards reliable HETP values: Lessons learned from standardized
    separation efficiency measurements}, volume={361}, DOI={<a href="https://doi.org/10.1016/j.seppur.2025.131436">10.1016/j.seppur.2025.131436</a>},
    number={131436}, journal={Separation and Purification Technology}, publisher={Elsevier
    BV}, author={Neumann, Maximilian and Xia, Marc and Pöschmann, René and Merkel,
    Amelie and Staud, Rolf and Schneider, Hannes and Ehlert, Thomas and Paschold,
    Jürgen and Müller, Steffen and Harding, Laura-Selin and et al.}, year={2025} }'
  chicago: 'Neumann, Maximilian, Marc Xia, René Pöschmann, Amelie Merkel, Rolf Staud,
    Hannes Schneider, Thomas Ehlert, et al. “Towards Reliable HETP Values: Lessons
    Learned from Standardized Separation Efficiency Measurements.” <i>Separation and
    Purification Technology</i> 361 (2025). <a href="https://doi.org/10.1016/j.seppur.2025.131436">https://doi.org/10.1016/j.seppur.2025.131436</a>.'
  ieee: 'M. Neumann <i>et al.</i>, “Towards reliable HETP values: Lessons learned
    from standardized separation efficiency measurements,” <i>Separation and Purification
    Technology</i>, vol. 361, Art. no. 131436, 2025, doi: <a href="https://doi.org/10.1016/j.seppur.2025.131436">10.1016/j.seppur.2025.131436</a>.'
  mla: 'Neumann, Maximilian, et al. “Towards Reliable HETP Values: Lessons Learned
    from Standardized Separation Efficiency Measurements.” <i>Separation and Purification
    Technology</i>, vol. 361, 131436, Elsevier BV, 2025, doi:<a href="https://doi.org/10.1016/j.seppur.2025.131436">10.1016/j.seppur.2025.131436</a>.'
  short: M. Neumann, M. Xia, R. Pöschmann, A. Merkel, R. Staud, H. Schneider, T. Ehlert,
    J. Paschold, S. Müller, L.-S. Harding, J. Neukäufer, C. Hiller, I. Ausner, A.
    Gäbler, R. Chromik, J. Maćkowiak, J. Maćkowiak, J.L. Sola Cervera, C. Geipel,
    J. Brinkmann, J. Bausa, S. Zeck, M. Hapke, F. Forner, F. Habla, M. Knaup, R. Schulz,
    M. Schultes, T. Harlacher, N. Lutters, E. Kenig, K. Jasch, M. Paschetag, S. Scholl,
    M. Grünewald, G. Brösigke, J.-U. Repke, H. Klein, S. Rehfeldt, Separation and
    Purification Technology 361 (2025).
date_created: 2025-01-13T11:35:51Z
date_updated: 2025-02-28T07:57:11Z
department:
- _id: '9'
- _id: '145'
- _id: '831'
doi: 10.1016/j.seppur.2025.131436
intvolume: '       361'
language:
- iso: eng
publication: Separation and Purification Technology
publication_identifier:
  issn:
  - 1383-5866
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: 'Towards reliable HETP values: Lessons learned from standardized separation
  efficiency measurements'
type: journal_article
user_id: '22006'
volume: 361
year: '2025'
...
---
_id: '26103'
abstract:
- lang: eng
  text: Pore-scale filtration simulations require high spatio-temporal resolutions
    and significant computational effort, hence, keeping the domain size to a minimum
    is desirable. Previous studies have considered domains based on Brinkman length,
    or are limited by computing power, and little information is available for conditions
    involving high fluid saturation – typical of steady state mist filtration. In
    this study, simulations are performed to characterize the effect of domain size
    on pressure drop, residual saturation, liquid film thickness and interfacial area
    concentration, using virtual nonwoven and foam filters with similar micro-structural
    properties. Further, experiments using micro-CT are performed to validate the
    present computational simulations. It is found that two phase flow through filters
    are more sensitive to local geometric variations or mesh resolution in the porous
    media than single phase flow. Statistical uncertainties in the steady state quantities
    of less than +-10% can be expected to cope with the increase in computing power
    required for practical mesh sizes. A computational domain size of about 50–100xd
    (where d is the strut or fibre diameter) was found to be required for CFD for
    the operating conditions considered.
author:
- first_name: S.
  full_name: Abishek, S.
  last_name: Abishek
- first_name: A.J.C.
  full_name: King, A.J.C.
  last_name: King
- first_name: J.
  full_name: Schuler, J.
  last_name: Schuler
- first_name: G.
  full_name: Kasper, G.
  last_name: Kasper
- first_name: Hans-Joachim
  full_name: Schmid, Hans-Joachim
  id: '464'
  last_name: Schmid
- first_name: B.J.
  full_name: Mullins, B.J.
  last_name: Mullins
citation:
  ama: Abishek S, King AJC, Schuler J, Kasper G, Schmid H-J, Mullins BJ. Representative
    domain size for the simulation of coalescence filtration in nonwoven and foam
    media. <i>Separation and Purification Technology</i>. Published online 2018:344-352.
    doi:<a href="https://doi.org/10.1016/j.seppur.2018.06.051">10.1016/j.seppur.2018.06.051</a>
  apa: Abishek, S., King, A. J. C., Schuler, J., Kasper, G., Schmid, H.-J., &#38;
    Mullins, B. J. (2018). Representative domain size for the simulation of coalescence
    filtration in nonwoven and foam media. <i>Separation and Purification Technology</i>,
    344–352. <a href="https://doi.org/10.1016/j.seppur.2018.06.051">https://doi.org/10.1016/j.seppur.2018.06.051</a>
  bibtex: '@article{Abishek_King_Schuler_Kasper_Schmid_Mullins_2018, title={Representative
    domain size for the simulation of coalescence filtration in nonwoven and foam
    media}, DOI={<a href="https://doi.org/10.1016/j.seppur.2018.06.051">10.1016/j.seppur.2018.06.051</a>},
    journal={Separation and Purification Technology}, author={Abishek, S. and King,
    A.J.C. and Schuler, J. and Kasper, G. and Schmid, Hans-Joachim and Mullins, B.J.},
    year={2018}, pages={344–352} }'
  chicago: Abishek, S., A.J.C. King, J. Schuler, G. Kasper, Hans-Joachim Schmid, and
    B.J. Mullins. “Representative Domain Size for the Simulation of Coalescence Filtration
    in Nonwoven and Foam Media.” <i>Separation and Purification Technology</i>, 2018,
    344–52. <a href="https://doi.org/10.1016/j.seppur.2018.06.051">https://doi.org/10.1016/j.seppur.2018.06.051</a>.
  ieee: 'S. Abishek, A. J. C. King, J. Schuler, G. Kasper, H.-J. Schmid, and B. J.
    Mullins, “Representative domain size for the simulation of coalescence filtration
    in nonwoven and foam media,” <i>Separation and Purification Technology</i>, pp.
    344–352, 2018, doi: <a href="https://doi.org/10.1016/j.seppur.2018.06.051">10.1016/j.seppur.2018.06.051</a>.'
  mla: Abishek, S., et al. “Representative Domain Size for the Simulation of Coalescence
    Filtration in Nonwoven and Foam Media.” <i>Separation and Purification Technology</i>,
    2018, pp. 344–52, doi:<a href="https://doi.org/10.1016/j.seppur.2018.06.051">10.1016/j.seppur.2018.06.051</a>.
  short: S. Abishek, A.J.C. King, J. Schuler, G. Kasper, H.-J. Schmid, B.J. Mullins,
    Separation and Purification Technology (2018) 344–352.
date_created: 2021-10-13T12:50:12Z
date_updated: 2022-01-06T06:57:16Z
doi: 10.1016/j.seppur.2018.06.051
language:
- iso: eng
page: 344-352
publication: Separation and Purification Technology
publication_identifier:
  issn:
  - 1383-5866
publication_status: published
status: public
title: Representative domain size for the simulation of coalescence filtration in
  nonwoven and foam media
type: journal_article
user_id: '70093'
year: '2018'
...