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DNS of turbulent channel flow with phase Transition using an active scalar condensation model

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/
Document Type:Conference or Workshop Item (Speech)
Title:DNS of turbulent channel flow with phase Transition using an active scalar condensation model
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bahavar, PhilippPhilipp.Bahavar (at) dlr.dehttps://orcid.org/0000-0003-3817-7875
Brückner, ChristianChristian.Brueckner (at) dlr.deUNSPECIFIED
Wagner, ClausClaus.Wagner (at) dlr.deUNSPECIFIED
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:12 Jun 2019 16:43

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