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Bahavar, Philipp and Brückner, Christian and Wagner, Claus (2019) DNS of turbulent channel flow with phase Transition using an active scalar condensation model. In: multiphase flow. 10th International Conference on Multiphase Flow (ICMF), 19.-24. Mai 2019, Rio de Janeiro, Brasilien.
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Official URL: http://www.icmf2019.com.br/
Abstract
A single phase DNS including temperature and vapor concentration as active scalars is used to investigate the influence of phase transition effects in turbulent flow through a cooled channel. Analysis of the flow fields reveals high-velocity sweeps as the dominant transport mechanism of vapor across the phase boundary, leading to heterogeneous condensate accumulation and release of latent heat at the wall. Spectra of turbulent kinetic energy show that conversely, the coherent structures are themselves modified by condensation events.
| Item URL in elib: | https://elib.dlr.de/125831/ | ||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||
| Title: | DNS of turbulent channel flow with phase Transition using an active scalar condensation model | ||||||||||||||||
| Authors: |
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| Date: | May 2019 | ||||||||||||||||
| Journal or Publication Title: | multiphase flow | ||||||||||||||||
| Open Access: | No | ||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||
| Status: | Published | ||||||||||||||||
| Keywords: | DNS, channel flow, buoyancy, turbulence, condensation | ||||||||||||||||
| Event Title: | 10th International Conference on Multiphase Flow (ICMF) | ||||||||||||||||
| Event Location: | Rio de Janeiro, Brasilien | ||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||
| Event Dates: | 19.-24. Mai 2019 | ||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
| HGF - Program: | Transport | ||||||||||||||||
| HGF - Program Themes: | Terrestrial Vehicles (old) | ||||||||||||||||
| DLR - Research area: | Transport | ||||||||||||||||
| DLR - Program: | V BF - Bodengebundene Fahrzeuge | ||||||||||||||||
| DLR - Research theme (Project): | V - Next Generation Train III (old) | ||||||||||||||||
| Location: | Göttingen | ||||||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Ground Vehicles | ||||||||||||||||
| Deposited By: | Bahavar, Philipp | ||||||||||||||||
| Deposited On: | 12 Jun 2019 16:37 | ||||||||||||||||
| Last Modified: | 29 Mar 2023 00:40 |
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