STOKES FLOW INDUCED DRAG AND TORQUE ON ASBESTOS-LIKE FIBRES CANNOT BE ESTIMATED BY A SIMPLISTIC ELLIPSOIDAL APPROXIMATION
Ravnik J, Štrakl M, Wedel J, Steinmann P, Hriberšek M (2022)
Publication Type: Conference contribution
Publication year: 2022
Publisher: WITPress
Book Volume: 134
Pages Range: 33-44
Conference Proceedings Title: WIT Transactions on Engineering Sciences
Event location: Online
ISBN: 9781784664596
DOI: 10.2495/BE450031
Abstract
In this paper we present an algorithm based on the Boundary Element Method for solving the Stokes flow around an arbitrarily shaped particle in multiphase flows. The objective of the algorithm is to determine the exact drag force and torque experienced by the particle during its motion in a turbulent flow field. The developed method is used to compare the predicted force and torque values on a realistic 3D model of a mineral fibre and its simplifying ellipsoidal approximation. We found that the force and torque values calculated for the real particle geometry differ greatly from the values obtained with the simplifying ellipsoidal approximation. On average, a relative error of less than 10% is achieved for only 10%–30% of the particle orientations.
Authors with CRIS profile
Jana Wedel
Lehrstuhl für Technische Mechanik (LTM)
Paul Steinmann
Lehrstuhl für Technische Mechanik (LTM)
Involved external institutions
Slovenia (SI)How to cite
APA:
Ravnik, J., Štrakl, M., Wedel, J., Steinmann, P., & Hriberšek, M. (2022). STOKES FLOW INDUCED DRAG AND TORQUE ON ASBESTOS-LIKE FIBRES CANNOT BE ESTIMATED BY A SIMPLISTIC ELLIPSOIDAL APPROXIMATION. In Alexander H.-D. Cheng (Eds.), WIT Transactions on Engineering Sciences (pp. 33-44). Online: WITPress.
MLA:
Ravnik, Jure, et al. "STOKES FLOW INDUCED DRAG AND TORQUE ON ASBESTOS-LIKE FIBRES CANNOT BE ESTIMATED BY A SIMPLISTIC ELLIPSOIDAL APPROXIMATION." Proceedings of the 45th International Conference on Boundary Elements and other Mesh Reduction Methods, BEM/MRM 2022, Online Ed. Alexander H.-D. Cheng, WITPress, 2022. 33-44.
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