| Towards multi-fidelity simulation of flows around an underwater vehicle with appendages and propeller | |
Zhou ZD(周志登) ; Li ZB(李曌斌); He GW(何国威); Yang XL(杨晓雷)
| |
| Source Publication | THEORETICAL AND APPLIED MECHANICS LETTERS
 |
| 2022-01 | |
| Volume | 12Issue:1Pages:100318 |
| ISSN | 2095-0349 |
| Abstract | Flow around a real-life underwater vehicle often happens at a high Reynolds number with flow structures at different scales from the boundary layer around a blade to that around the hull. This poses a great challenge for large-eddy simulation of an underwater vehicle aiming at resolving all relevant flow scales. In this work, we propose to model the hull with appendages using the immersed boundary method, and model the propeller using the actuator disk model without resolving the geometry of the blade. The proposed method is then applied to simulate the flow around Defense Advanced Research Projects Agency (DARPA) suboff. An overall acceptable agreement is obtained for the pressure and friction coefficients. Complex flow features are observed in the near wake of suboff. In the far wake, the core region is featured by a jet because of the actuator disk, surrounded by an annular region with velocity deficit due to the body of suboff.0 2021 The Author(s). Published by Elsevier Ltd on behalf of The Chinese Society of Theoretical and Applied Mechanics.This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ) |
| Keyword | Multi-fidelity model Large-eddy simulation Immersed boundary method Actuator disk model DARPA suboff |
| DOI | 10.1016/j.taml.2021.100318 |
| Indexed By | CSCD |
| Language | 英语 |
| WOS Research Area | Mechanics |
| Funding Organization | National Natural Science Foundation of China (NSFC) Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics [11988102] ; NSFC [12002345] ; China Postdoctoral Science Foundation [2020M680027] |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Yang, XL (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/93694 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Zhou ZD,Li ZB,He GW,et al. Towards multi-fidelity simulation of flows around an underwater vehicle with appendages and propeller[J]. THEORETICAL AND APPLIED MECHANICS LETTERS,2022,12,1,:100318.Rp_Au:Yang, XL (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| APA | 周志登,李曌斌,何国威,&杨晓雷.(2022).Towards multi-fidelity simulation of flows around an underwater vehicle with appendages and propeller.THEORETICAL AND APPLIED MECHANICS LETTERS,12(1),100318. |
| MLA | 周志登,et al."Towards multi-fidelity simulation of flows around an underwater vehicle with appendages and propeller".THEORETICAL AND APPLIED MECHANICS LETTERS 12.1(2022):100318. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| TAML011.pdf（2422KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment