Modelling wave interactions over space and time.

模拟波在空间和时间上的相互作用。

基本信息

批准号：
2115395
负责人：
金额：
--
依托单位：
Lancaster University
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2018
资助国家：
英国
起止时间：
2018 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2115395
关键词：
Modelling wave interactions over space

项目摘要

The world's oceans play an important role in many aspects of modern life, from transportation to energy generation. Ocean waves are one of the main challenges faced by vessels and structures operating in the oceans, and drive the waves that cause coastal flooding and erosion. In certain conditions these waves can cause severe damage, endangering structures, vessels, communities and lives.The resulting scientific challenge is to understand the conditions that can cause instances of catastrophic damage. To do this it is common to describe the conditions in a given area of the ocean. It is then possible to understand what kind of impacts we would expect on a structure or vessel that is in these conditions or on coastal communities when these waves propagate onshore.To do this we use data, taken from a measuring device, such as a buoy, situated in the area of interest. We then try to estimate the conditions that could have given rise to these observations. Usually scientists and engineers do this by developing general models for ocean wave behaviour that they then fit to the observed data. In most cases, these models have to account for multiple wave systems. The waves systems behave differently if they are generated locally (wind sea waves) than if they have travelled from elsewhere in the ocean (swell waves). An added complexity is that these weather systems interact with one another in ways that are very difficult to predict, presenting an extra challenge to those interested in modelling wave behaviour.Throughout the course of this project, we aim to utilise state of the art techniques from time series analysis to improve the way in which practitioners can estimate model parameters, and model how conditions can change over time. More advanced techniques can also be employed to explore the non-linear interactions between swell and wind sea systems, which plays an important role in determining the conditions that are experienced in practice.In partnership with JBA Trust.

从运输到能量产生，世界上的海洋在现代生活的许多方面都起着重要作用。海浪是在海洋中运行的船只和结构面临的主要挑战之一，并驱动了引起沿海洪水和侵蚀的海浪。在某些情况下，这些波浪可能会造成严重破坏，危害结构，船舶，社区和生命。由此产生的科学挑战是了解可能导致灾难性损害实例的条件。为此，通常描述海洋给定区域中的条件。然后，可以了解我们期望我们对在这些条件下或沿海社区的结构或船只进行什么样的影响，当这些波浪在陆上传播时。要执行此操作，我们使用的是来自感兴趣领域的测量设备，例如浮标，例如浮标。然后，我们尝试估计可能引起这些观察结果的条件。通常，科学家和工程师通过为海浪行为开发一般模型来做到这一点，然后它们适合观察到的数据。在大多数情况下，这些模型必须考虑多个波系统。如果波浪系统是本地产生的（风波）的行为与从海洋其他地方（Swell Waves）旅行的情况不同。一个额外的复杂性是，这些天气系统以很难预测的方式相互作用，对那些对Wave行为建模的人提出了额外的挑战。通过该项目的过程，我们旨在利用时间序列分析的最新技术状态，以改善从业者可以估算模型参数的方式，并建模条件随时间变化。还可以采用更先进的技术来探索Swell和Wind Sea Systems之间的非线性相互作用，这在确定实践中经历的条件方面起着重要作用。与JBA Trust合作。