Version 1
: Received: 26 June 2023 / Approved: 11 July 2023 / Online: 12 July 2023 (02:43:18 CEST)
How to cite:
Li, H.; Feng, J.; Zheng, Y.; Xu, H.; Chen, H.; Binama, M.; Kan, K. A Computational Method for Complex-shaped Hydraulic Turbomachinery Flow Based on Immersed Boundary Method. Preprints2023, 2023070735. https://doi.org/10.20944/preprints202307.0735.v1
Li, H.; Feng, J.; Zheng, Y.; Xu, H.; Chen, H.; Binama, M.; Kan, K. A Computational Method for Complex-shaped Hydraulic Turbomachinery Flow Based on Immersed Boundary Method. Preprints 2023, 2023070735. https://doi.org/10.20944/preprints202307.0735.v1
Li, H.; Feng, J.; Zheng, Y.; Xu, H.; Chen, H.; Binama, M.; Kan, K. A Computational Method for Complex-shaped Hydraulic Turbomachinery Flow Based on Immersed Boundary Method. Preprints2023, 2023070735. https://doi.org/10.20944/preprints202307.0735.v1
APA Style
Li, H., Feng, J., Zheng, Y., Xu, H., Chen, H., Binama, M., & Kan, K. (2023). A Computational Method for Complex-shaped Hydraulic Turbomachinery Flow Based on Immersed Boundary Method. Preprints. https://doi.org/10.20944/preprints202307.0735.v1
Chicago/Turabian Style
Li, H., Maxime Binama and Kan Kan. 2023 "A Computational Method for Complex-shaped Hydraulic Turbomachinery Flow Based on Immersed Boundary Method" Preprints. https://doi.org/10.20944/preprints202307.0735.v1
Abstract
Traditional numerical techniques such as sliding mesh, dynamic grid mesh, and others, have many limitations in dealing with flow simulation with large-scale movement of solid boundaries; which is the case for complex-shaped hydraulic turbomachinery such as propellers, pumps and turbines. The immersed boundary (IB) method provides a new approach to solve the above limitations. Therefore, this study proposes an sharp-interface IB method based on the level-set function that is suitable for simulating the flow through turbomachinery with complex geometries. This method is applied to actual three-dimensional numerical simulations of high-Reynolds number propellers using an in-house computational fluid dynamics solver. The results show that the proposed method can provide comparatively accurate predictions of unsteady load coefficients within the propeller flow passage, and capture the correct propeller wake characteristics as well as the interaction between the propeller wake and free surface. This study aims at providing a theoretical basis and engineering reference for the application of the IB method in engineering numerical simulations.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
