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Bahavar, Philipp and Wagner, Claus (2018) Direct Numerical Simulation of Convective Channel Flow with Temperature and Concentration Gradients. In: New Results in Numerical and Experimental Fluid Mechanics XI Notes on Numerical Fluid Mechanics an Multidiciplinary Design 136, 136. Springer, Cham. pp. 445-453. doi: 10.1007/978-3-319-64519-3_40. ISBN 978-3-319-64518-6. ISSN 1612-2909.
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Official URL: http://link.springer.com/chapter/10.1007/978-3-319-64519-3_40
Abstract
Mixed convection in a differentially heated channel with an additional concentration gradient is investigated via direct numerical simulation (DNS) using a finite volume method based on fourth order accurate central differences in space and an explicit time integration scheme. The fluid is treated as a homogeneous fluid characterized by its temperature and mixing ratio. The Boussinesq approximation is employed to calculate the influence of the buoyant force resulting from density differences due to both quantities in preparation of future investigations of humid air flows in various ventilation applications. The simulations at different values for the modified Grashof number show a distinct effect of the mixing ratio on the flow and temperature profiles for values approximating the conditions found in humid air, in line with those found for purely thermal systems with comparable Grashof number.
| Item URL in elib: | https://elib.dlr.de/115642/ | ||||||||||||||||||||||||||||||||
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| Document Type: | Contribution to a Collection | ||||||||||||||||||||||||||||||||
| Additional Information: | First Online:31 October 2017; https://doi.org/10.1007/978-3-319-64519-3; Series Online ISSN 1860-0824; Online ISBN 978-3-319-64519-3 | ||||||||||||||||||||||||||||||||
| Title: | Direct Numerical Simulation of Convective Channel Flow with Temperature and Concentration Gradients | ||||||||||||||||||||||||||||||||
| Authors: |
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| Date: | 2018 | ||||||||||||||||||||||||||||||||
| Journal or Publication Title: | New Results in Numerical and Experimental Fluid Mechanics XI | ||||||||||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||||||||||||||
| Volume: | 136 | ||||||||||||||||||||||||||||||||
| DOI: | 10.1007/978-3-319-64519-3_40 | ||||||||||||||||||||||||||||||||
| Page Range: | pp. 445-453 | ||||||||||||||||||||||||||||||||
| Editors: |
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| Publisher: | Springer, Cham | ||||||||||||||||||||||||||||||||
| Series Name: | Notes on Numerical Fluid Mechanics an Multidiciplinary Design 136 | ||||||||||||||||||||||||||||||||
| ISSN: | 1612-2909 | ||||||||||||||||||||||||||||||||
| ISBN: | 978-3-319-64518-6 | ||||||||||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||||||||||
| Keywords: | DNS, Channel Flow, Boussinesq Approximation, Fluid Mixture | ||||||||||||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||||||||||||||||||
| HGF - Program Themes: | fixed-wing aircraft | ||||||||||||||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||||||||||||||
| DLR - Program: | L AR - Aircraft Research | ||||||||||||||||||||||||||||||||
| DLR - Research theme (Project): | L - Simulation and Validation (old) | ||||||||||||||||||||||||||||||||
| Location: | Göttingen | ||||||||||||||||||||||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Fluid Systems, GO | ||||||||||||||||||||||||||||||||
| Deposited By: | Bachmann, Barbara | ||||||||||||||||||||||||||||||||
| Deposited On: | 21 Nov 2017 11:04 | ||||||||||||||||||||||||||||||||
| Last Modified: | 20 Jul 2023 12:24 |
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