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Hybrid eulerian-lagrangian approach for dense spray simulations

Heidarifatasmi, Hosein ORCID iD icon; Zirwes, Thorsten ORCID iD icon; Zhang, Feichi; Habisreuther, Peter ORCID iD icon; Trimis, Dimosthenis


In this work, a hybrid Euler-Lagrangian solver for dense spray systems is developed specifically for cases where film creation by accumulation of liquid droplets at the walls plays a crucial role. EulerLagrangian solvers are commonly used to describe the spray with predefined spray characteristics. The Lagrangian particles represent liquid drops moving along the continuous gaseous phase. This approach assumes a small particle size compared to the cell size and it is unable to capture the breakup behavior of liquid jets in the presence of instabilities. VOF methods, on the other hand, are not a computationally feasible option when it comes to small droplet sizes as a result of liquid atomization because they have to be fully resolved by the computational mesh. Hence, multiscale simulations are required to bridge the gap between the two methods combining subgrid droplets in Lagrangian approaches and large liquid structures in VOF methods. In the present work, a multiscale approach is developed where Lagrangian particles representing small droplets are tracked through the continuous phase until they hit a wall or a liquid-gas interface represented by a continuous VOF field. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000141919
Veröffentlicht am 15.01.2022
Cover der Publikation
Zugehörige Institution(en) am KIT Steinbuch Centre for Computing (SCC)
Universität Karlsruhe (TH) – Zentrale Einrichtungen (Zentrale Einrichtungen)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2696-6999
KITopen-ID: 1000141919
Erschienen in Graph Drawing and Network Visualization: 29th International Symposium, GD 2021, Tübingen, Germany, September 14–17, 2021, Revised Selected Papers. Ed.: H. C. Purchase
Verlag Scipedia S.L.
Seiten 1-12
Schlagwörter Hybrid Eulerian-Lagrangian, Dense sprays, VOF method, OpenFOAM
Nachgewiesen in Scopus
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