دورية أكاديمية
A CFD-Based Data-Driven Reduced Order Modeling Method for Damaged Ship Motion in Waves
| العنوان: | A CFD-Based Data-Driven Reduced Order Modeling Method for Damaged Ship Motion in Waves |
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| المؤلفون: | Zhe Sun, Lu-yu Sun, Li-xin Xu, Yu-long Hu, Gui-yong Zhang, Zhi Zong |
| المصدر: | Journal of Marine Science and Engineering, Vol 11, Iss 4, p 686 (2023) |
| بيانات النشر: | MDPI AG, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Naval architecture. Shipbuilding. Marine engineering LCC:Oceanography |
| مصطلحات موضوعية: | damaged ship motion, reduced order modeling, computational fluid dynamics, data-driven model, Naval architecture. Shipbuilding. Marine engineering, VM1-989, Oceanography, GC1-1581 |
| الوصف: | A simple CFD-based data-driven reduced order modeling method was proposed for the study of damaged ship motion in waves. It consists of low-order modeling of the whole concerned parameter range and high-order modeling for selected key scenarios identified with the help of low-order results. The difference between the low and high-order results for the whole parameter range, where the main trend of the physics behind the problem is expected to be captured, is then modeled by some commonly used machine learning or data regression methods based on the data from key scenarios which is chosen as Piecewise Cubic Hermite Interpolating Polynomial (PCHIP) in this study. The final prediction is obtained by adding the results from the low-order model and the difference. The low and high-order modeling were conducted through computational fluid dynamics (CFD) simulations with coarse and refined meshes. Taking the roll Response Amplitude Operator (RAO) of a DTMB-5415 ship model with a damaged cabin as an example, the proposed physics-informed data-driven model was shown to have the same level of accuracy as pure high-order modeling, whilst the computational time can be reduced by 22~55% for the studied cases. This simple reduced order modeling approach is also expected to be applicable to other ship hydrodynamic problems. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2077-1312 |
| Relation: | https://www.mdpi.com/2077-1312/11/4/686; https://doaj.org/toc/2077-1312 |
| DOI: | 10.3390/jmse11040686 |
| URL الوصول: | https://doaj.org/article/0c6028a27ac84324b1d584eebf4d6b10 |
| رقم الأكسشن: | edsdoj.0c6028a27ac84324b1d584eebf4d6b10 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20771312 |
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| DOI: | 10.3390/jmse11040686 |