Fuel Jettison simulation using Smoothed Particle Hydrodynamics (SPH)

使用平滑粒子流体动力学 (SPH) 进行燃油抛掷模拟

• 批准号: 2145758
• 金额: --
• 依托单位: University of Bristol
• 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-2145758
• 关键词: Fuel; Jettison; simulation; using; Smoothed

The objective of the research is to create a piece of software that will identify the potential risk of contamination on an aircraft surface by fuel being jettisoned from the aircraft in flight. In order to reduce certification costs, it is desirable to reduce the flight testing needed by simulating the scenario instead.The project software will likely take the form of accepting a flow solution from an existing CFD solver, and applying the forces from this solution to a particle based method that will be modelling the fuel. This will have first order influence, meaning that the flow solution shall influence the fuel direction, however the fuel shall have no effect on the flow solution. At present, the use of smoothed particle hydrodynamics (SPH) is being investigated to model the fuel, however other possibilities exist that could be more appropriate.The key challenge in the project will be the communication of the force on the fuel surface, given that the coefficient of drag is not constant nor consistent throughout. The particles are not always acting as finely dispersed particles that are independent, and are frequently forming free surfaces that alter the coefficient of drag. This is an area that will require some research and investigation in order to implement accurately and effectively.

这项研究的目标是创建一款软件，该软件将识别飞机表面因飞行中丢弃的燃料而受到污染的潜在风险。为了降低认证成本，希望通过模拟场景来减少所需的飞行测试。项目软件可能会采取从现有CFD解算器接受流动解的形式，并将来自该解的力应用于将对燃料进行建模的基于粒子的方法。这将具有一阶影响，这意味着流动溶液将影响燃料的方向，而燃料将不会影响流动溶液。目前，人们正在研究使用光滑粒子流体动力学(SPH)来模拟燃料，但存在其他更合适的可能性。考虑到阻力系数不是恒定的，也不是始终一致的，该项目的关键挑战将是燃料表面上的力的传递。这些颗粒并不总是作为独立的细小分散的颗粒，而且经常形成改变阻力系数的自由表面。这是一个需要进行一些研究和调查的领域，以便准确和有效地执行。