Hyper Flux

流体流动的计算机模拟在飞机、汽车、船舶和风力涡轮机等复杂系统的气动设计中起着越来越重要的作用。然而，越来越明显的是，目前用于空气动力设计的软件包在很大范围的流动问题中并不适用，特别是在非定常流动的情况下（高度分离流、涡流支配流、声学问题等）。当前一代的软件包缺乏所需的精确度，因为它们普遍基于“低阶”（一阶或二阶）精确的数值方法。为了解决具有挑战性的非定常流动问题，并消除对昂贵的物理原型的需要，需要基于先进的“高阶”精确数值方法的更新软件。此外，该软件必须能够在所谓的“非结构网格”上实现高阶精度-用于网格复杂的工程几何形状，它必须能够有效地利用下一代“众核”计算硬件（例如Nvidia Tesla GPU、Intel Xeon Phi协处理器和AMD FirePro GPU），先进的高阶通量重建（FR）方法，结合众核加速器，可以提供一种“游戏改变”技术，能够在复杂的工程几何形状附近进行目前难以处理的非定常湍流模拟。然而，各种技术问题仍然需要解决之前，上述技术可以用来“愤怒”解决现实世界的流动问题，这往往涉及“滑动平面”（当两个计算网格滑动在一个不一致的方式彼此的情况）。的关键目标该提案的（学术组成部分）是开发一种滑动平面的处理方法，该方法可有效地与多核加速器上的FR方法一起使用，并证明FR方法在多核加速器上的性能，用于金融机构提出的一系列行业领先的测试案例。（CFMS和Zenotech）和非金融（空客、埃兹宇航防务集团、BAE、劳斯莱斯、ARA、UKAerodynamics Centre）项目合作伙伴。该提案的学术部分将由Peter Vincent博士领导（伦敦帝国理工学院航空系讲师），并将建立在目前的工作由3 x EPSRC DTA，1 x空中客车/EPSRC iCASE DTA，和EPSRC早期职业奖学金（EP/K 027379/1）资助。

Computer simulations of fluid flow are playing an increasingly important role in aerodynamic design of numerous complexsystems, including aircraft, cars, ships and wind turbines. It is becoming apparent, however, that for a wide range of flowproblems current generation software packages used for aerodynamic design are not fit for purpose.Specifically, for scenarios where flow is unsteady (highly separated flows, vortex dominated flows, acoustics problems etc.)current generation software packages lack the required accuracy; since they are ubiquitously based on 'low-order' (first- orsecond-order) accurate numerical methods. To solve challenging unsteady flow problems, and remove the need forexpensive physical prototyping, newer software based on advanced 'high-order' accurate numerical methods is required.Additionally, this software must be able to achieve high-order accuracy on so-called 'unstructured grids' - used to meshcomplex engineering geometries, and it must be able to make effective use of next-generation 'many-core' computinghardware (such as Nvidia Tesla GPUs, Intel Xeon Phi Co-Processors, and AMD FirePro GPUs), which will likely underpinfuture HPC platforms.Advanced high-order Flux Reconstruction (FR) methods, combined with many-core accelerators, could provide a `gamechanging'technology capable of performing currently intractable unsteady turbulent flow simulations within the vicinity ofcomplex engineering geometries. However, various technical issues still need to be addressed before the above technology can be used `in anger' to solve real-world flow problems, which often involve `sliding planes' (situations whentwo computational meshes slide across one another in a non-conforming fashion). The key objectives (of the academiccomponent) of the proposal are to develop a treatment for sliding planes that works effectively with FR methods on manycoreaccelerators, and demonstrate the performance of FR methods on many-core accelerators for a range of industry ledtest cases proposed by the financial (CFMS and Zenotech) and non-financial (Airbus, EADS, BAE, Rolls-Royce, ARA, UKAerodynamics Centre) project partners.The academic component of the proposal will be lead by Dr. Peter Vincent (a Lecturer in the department of Aeronautics atImperial College London), and will build upon current work funded by 3 x EPSRC DTAs, 1 x Airbus/EPSRC iCASE DTA,and an EPSRC Early Career Fellowship (EP/K027379/1).