Vortex-Induced Vibration Predictions of a Circular Cylinder Using an Efficient Pseudo-Time Code-Coupling Approach
Presented in this work is a harmonic balance (HB)-based pseudo-time code-coupling approach applied to a one-degree-of-freedom vortex-induced vibration (VIV) problem of a circular cylinder in a low-Reynolds-number laminar flow regime. Unlike physical time coupling used in traditional time-accurate me...
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MDPI AG
2025-07-01
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| author | Hang Li Kivanc Ekici |
| author_facet | Hang Li Kivanc Ekici |
| author_sort | Hang Li |
| collection | DOAJ |
| description | Presented in this work is a harmonic balance (HB)-based pseudo-time code-coupling approach applied to a one-degree-of-freedom vortex-induced vibration (VIV) problem of a circular cylinder in a low-Reynolds-number laminar flow regime. Unlike physical time coupling used in traditional time-accurate methods, this novel approach updates both of the fluid and structure fields by integrating respective HB forms of governing equations in pseudo-time, and then couples the two fields in pseudo-time using a partitioned approach. A separate procedure is adopted to determine the VIV frequency at every code-coupling iteration, which enables the simultaneous convergence of variables of both fields in a single run of the solver. For the cases considered here, lock-in vibrations are predicted over a range of Reynolds numbers, inside and outside the resonant range. The results are verified by a time-accurate method and also validated against earlier experimental data, demonstrating the efficiency and robustness of the pseudo-time code-coupling approach. |
| format | Article |
| id | doaj-art-2bcbf879e7f04274b5811686f35c57bf |
| institution | Matheson Library |
| issn | 2311-5521 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fluids |
| spelling | doaj-art-2bcbf879e7f04274b5811686f35c57bf2025-07-25T13:23:02ZengMDPI AGFluids2311-55212025-07-0110718210.3390/fluids10070182Vortex-Induced Vibration Predictions of a Circular Cylinder Using an Efficient Pseudo-Time Code-Coupling ApproachHang Li0Kivanc Ekici1Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, TN 37996, USADepartment of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, TN 37996, USAPresented in this work is a harmonic balance (HB)-based pseudo-time code-coupling approach applied to a one-degree-of-freedom vortex-induced vibration (VIV) problem of a circular cylinder in a low-Reynolds-number laminar flow regime. Unlike physical time coupling used in traditional time-accurate methods, this novel approach updates both of the fluid and structure fields by integrating respective HB forms of governing equations in pseudo-time, and then couples the two fields in pseudo-time using a partitioned approach. A separate procedure is adopted to determine the VIV frequency at every code-coupling iteration, which enables the simultaneous convergence of variables of both fields in a single run of the solver. For the cases considered here, lock-in vibrations are predicted over a range of Reynolds numbers, inside and outside the resonant range. The results are verified by a time-accurate method and also validated against earlier experimental data, demonstrating the efficiency and robustness of the pseudo-time code-coupling approach.https://www.mdpi.com/2311-5521/10/7/182vortex-induced vibrations (VIV)computational fluid dynamics (CFD)fluid–structure interaction (FSI)pseudo-time code couplingharmonic balance (HB) methodtime-spectral modeling |
| spellingShingle | Hang Li Kivanc Ekici Vortex-Induced Vibration Predictions of a Circular Cylinder Using an Efficient Pseudo-Time Code-Coupling Approach Fluids vortex-induced vibrations (VIV) computational fluid dynamics (CFD) fluid–structure interaction (FSI) pseudo-time code coupling harmonic balance (HB) method time-spectral modeling |
| title | Vortex-Induced Vibration Predictions of a Circular Cylinder Using an Efficient Pseudo-Time Code-Coupling Approach |
| title_full | Vortex-Induced Vibration Predictions of a Circular Cylinder Using an Efficient Pseudo-Time Code-Coupling Approach |
| title_fullStr | Vortex-Induced Vibration Predictions of a Circular Cylinder Using an Efficient Pseudo-Time Code-Coupling Approach |
| title_full_unstemmed | Vortex-Induced Vibration Predictions of a Circular Cylinder Using an Efficient Pseudo-Time Code-Coupling Approach |
| title_short | Vortex-Induced Vibration Predictions of a Circular Cylinder Using an Efficient Pseudo-Time Code-Coupling Approach |
| title_sort | vortex induced vibration predictions of a circular cylinder using an efficient pseudo time code coupling approach |
| topic | vortex-induced vibrations (VIV) computational fluid dynamics (CFD) fluid–structure interaction (FSI) pseudo-time code coupling harmonic balance (HB) method time-spectral modeling |
| url | https://www.mdpi.com/2311-5521/10/7/182 |
| work_keys_str_mv | AT hangli vortexinducedvibrationpredictionsofacircularcylinderusinganefficientpseudotimecodecouplingapproach AT kivancekici vortexinducedvibrationpredictionsofacircularcylinderusinganefficientpseudotimecodecouplingapproach |