Modelling Extreme Free-Surface Flows: applications to breaking waves, wave-structure and wave-vessel interactions
Modelling Extreme Free-Surface Flows: applications to breaking waves, wave-structure and wave-vessel interactions
批准号:
EP/F022964/1
负责人:
Christopher Swan
金额:
$47.25万
依托单位:
依托单位国家:
英国
项目类别:
Research Grant
财政年份:
2008
资助国家:
英国
项目状态:
已结题
起止时间:
2008 至 --
中文摘要
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英文摘要
The proposed research concerns the description of extreme free-surface flows with applications in both deep water offshore and the shallow water coastal locations. The work will involve the development of a new numerical model appropriate to the description of large surface water waves and their interaction with both fixed structures and floating vessels. The key feature linking these flows will be the occurrence of wave breaking; involving the break-up of the water surface, the entrainment of air and the rapid development of areas of highly turbulent flow. From a practical perspective such flows are extremely important because they are associated with the highest (limiting) water surface elevations, the largest water particle velocities and the maximum applied fluid loads. As a result, they are directly relevant to the design of all manner of marine structures and vessels.In order to simulate such flows, and in so doing provide improved physical understanding, the new numerical model will combine the advantages of two very different modelling procedures: a Boundary Element Method applied before the onset of wave breaking and Smooth Particle Hydrodynamics applied to the breaking and post-breaking fluid flow. By combining these procedures the proposed method will seek to create a robust and accurate model capable of describing a wide range of free-surface flows; particular attention being paid to those aspects of wave-structure and wave-vessel interactions that are critical for design and cannot be described by existing solution procedures.The model predictions will be validated against new laboratory observations. This will involve the use of scaled physical model tests and will consider a wide range of practically important fluid flows including:(i) Breaking waves, including both large-scale over-turning and spilling waves;(ii) Highly nonlinear effects in wave-structure interaction, including high-frequency wave scattering, vertical jetting where fluid is projected upwards to very high elevations creating wave-in-deck loads, and wave slamming on both vertical columns and the deck structure;(iii) Wave-vessel interactions, particularly the occurrence of green water inundation and large impact forces.In tackling these problems, the combined experimental and numerical studies will seek to provide new physical understanding of when and why these events occur, to assess their practical implications and to identify how they can best be modelled in engineering practice.The proposed work is relevant to a wide range of problems in fluid mechanics, with particular application to the effective design and safe operation of marine structures. Direct support from three key industrial practitioners is incorporated within the proposal. The project will also be relevant to the renewable energy industry. With interest in locating offshore wind farms in areas of high wind and therefore large wave activity, such structures are very susceptible to large-scale wave breaking and the associated impact forces. The shipping industry will also benefit from this project: the new model providing information to improve the design and/or safe operation of vessels to both increase survivability and, in the case of oil tankers, limit the potential for large-scale environmental impact and damage. Finally, the work also has a truly multi-disciplinary contribution, beyond the coastal/offshore/navel architecture boundaries, in the sense that the break-up of the water surface (specifically the entrainment of air) has implications for air-sea interactions in general, and mass exchange (CO2 absorption) in particular. Such issues are of fundamental importance to oceanographers studying the transfer processes at the ocean surface and contribute a key element to climate change modelling.
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DOI:
10.1016/j.enganabound.2008.10.005
发表时间:
2009
期刊:
Engineering Analysis with Boundary Elements
影响因子:
3.3
作者:
[Christou M]
通讯作者:
Christou M
WAVE STATISTICS IN NONLINEAR SEA STATES
非线性海态中的波浪统计
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
[Latheef, M]
通讯作者:
Latheef, M
A multiple flux boundary element method applied to the description of surface water waves
多通量边界元法应用于表面水波描述
DOI:
10.1016/j.jcp.2009.04.012
发表时间:
2009
期刊:
Journal of Computational Physics
影响因子:
4.1
作者:
[Hague C]
通讯作者:
Hague C
DOI:
10.1098/rspa.2012.0696
发表时间:
2013
期刊:
Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
[Latheef M]
通讯作者:
Latheef M
The evolution of large non-breaking waves in intermediate and shallow water. I. Numerical calculations of uni-directional seas
中浅水区大型非破浪的演化。
DOI:
10.1098/rspa.2010.0280
发表时间:
2010
期刊:
Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
[Katsardi V]
通讯作者:
Katsardi V
共 9 条
Collaborative Research: BoCP-Design: US-Sao Paulo: The roles of stochasticity and spatial context in dynamics of functional diversity under global change
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批准号:2225097
-
项目类别:Standard Grant
-
资助金额:$13.43万
-
财政年份:2023
-
负责人:Christopher Swan
-
依托单位:
COLLABORATIVE RESEARCH: Temporal stability of riverine communities in dendritic networks at multiple spatial scales
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批准号:1655592
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项目类别:Standard Grant
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资助金额:$23.26万
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财政年份:2017
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负责人:Christopher Swan
-
依托单位:
CCE STEM: Collaborative Research: Efficacy of Macroethics Education in Engineering
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批准号:1540308
-
项目类别:Standard Grant
-
资助金额:$4.19万
-
财政年份:2015
-
负责人:Christopher Swan
-
依托单位:
Modelling Marine Renewable Energy Devices; Designing for Survivability
-
批准号:EP/J010197/1
-
项目类别:Research Grant
-
资助金额:$132.47万
-
财政年份:2012
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负责人:Christopher Swan
-
依托单位:
Collaborative Research: The role of network topology and environmental filtering in shaping the ecology of spatially structured communities
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批准号:1026086
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项目类别:Standard Grant
-
资助金额:$41.0万
-
财政年份:2010
-
负责人:Christopher Swan
-
依托单位:
Collaborative Research: The Impacts of Service on Engineering Students (ISES) - A Longitudinal Study
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批准号:1025207
-
项目类别:Standard Grant
-
资助金额:$19.96万
-
财政年份:2010
-
负责人:Christopher Swan
-
依托单位:
Collaborative Research: Engineering Faculty Engagement in Learning Through Service (EFELTS)
-
批准号:1022927
-
项目类别:Standard Grant
-
资助金额:$32.01万
-
财政年份:2010
-
负责人:Christopher Swan
-
依托单位:
Collaborative Proposal: Evaluation of Sustainable Engineering Education via Service Learning Efforts in Engineering
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批准号:0935082
-
项目类别:Standard Grant
-
资助金额:$7.33万
-
财政年份:2009
-
负责人:Christopher Swan
-
依托单位:
THE ROLE OF SERVICE-LEARNING: IMPROVING ENGINEERING EDUCATION; ATTRACTING WOMEN INTO ENGINEERING
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批准号:0835981
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项目类别:Standard Grant
-
资助金额:$50.0万
-
财政年份:2008
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负责人:Christopher Swan
-
依托单位:
LT: Economic and Optimization Analyses of the Reuse of Traditional Waste Materials
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批准号:9814551
-
项目类别:Standard Grant
-
资助金额:$4.96万
-
财政年份:1998
-
负责人:Christopher Swan
-
依托单位:
The Engineering Properties and Potential Reuse of Thermally-Remediated Contaminated Soils
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批准号:9633753
-
项目类别:Standard Grant
-
资助金额:$1.8万
-
财政年份:1996
-
负责人:Christopher Swan
-
依托单位:
海外基金