Strategic Partnership in Computational Science for Advanced Simulation and Modelling of Engineering Systems - ASiMoV

这个繁荣伙伴关系的战略愿景是先进的仿真和建模的虚拟系统（ASiMoV）是使研究和开发的下一代工程仿真和建模技术。我们的目标是实现世界上第一个完整的燃气涡轮发动机在运行过程中的高保真仿真，同时包括热力学，电磁学和CFD的影响。这种级别的仿真需要在各个层面上取得突破，包括物理模型、数值求解器、算法、软件基础设施和Exascale HPC硬件。我们的合作伙伴关系将基础工程和计算科学研究与两个高科技中小企业和劳斯莱斯公司结合起来，以应对远远超出当今数值求解器能力的挑战。高性能计算实现的仿真和建模已经改变了产品的设计和工程方式。为世界上最高效的航空发动机Trent XWB开发的技术只能通过模拟和建模来实现。然而，下一代产品将对仿真提出要求，而这些要求无法通过对当前技术的增量更改来满足。ACARE Flightpath 2050目标要求对发动机架构进行根本性的改变，2015年航空航天技术研究所推进战略将“虚拟认证”确定为2025-30时间框架内所需的关键技术。实现虚拟认证的过程是一个渐进的过程，需要有一个全面的证据数据库，使认证机构相信分析是可信的。它将在若干方面取得进展。其中之一是通过整个发动机测试来验证运行性能和推力。我们的目标是实现新的仿真技术，以实现有意义的虚拟认证模型所需的超高分辨率和极端规模。对于劳斯莱斯来说，虚拟认证将带来重大的业务转型，需要对仿真的前所未有的信任，以及对设计流程和技能的根本性改变。每个发动机项目的虚拟认证预计可节省数百万英镑的成本;但是，我们还估计每个模拟将需要10亿个核心小时。在这种规模下，每个设计研究从计算成本和性能优化中节省的费用将达到数百万英镑。因此，ASiMoV需要在下一代Exascale超级计算机上推进数值建模和模拟的边界。

The strategic vision of this Prosperity Partnership for Advanced Simulation and Modelling of Virtual Systems (ASiMoV) is to enable the research and development of the next generation of engineering simulation and modelling techniques. Our aim is to achieve the world's first high fidelity simulation of a complete gas-turbine engine during operation, simultaneously including the effects of thermo-mechanics, electromagnetics, and CFD. This level of simulation will require breakthroughs at all levels, including physical models, numerical solvers, algorithms, software infrastructure, and Exascale HPC hardware. Our partnership uniquely combines fundamental engineering and computational science research with two high tech SMEs and Rolls-Royce plc to address a challenge that is well beyond the capabilities of today's numerical solvers.Simulation and modelling, enabled by high performance computing, have transformed the way products are designed and engineered. The technology developed for the Trent XWB, the world's most efficient aero engine, could only have been achieved through simulation and modelling. However, next generation products will place demands on simulation that cannot be met by incremental changes to current techniques. The ACARE Flightpath 2050 goals demand fundamental changes to engine architectures and the 2015 Aerospace Technology Institute Propulsion Strategy identified "virtual certification" as a key technology needed in the 2025-30 timeframe. The journey to virtual certification is an incremental one requiring a thorough evidential database to convince the certification authorities that the analysis can be trusted. It will move forward on a number of fronts. One of those is the whole engine tests to certify operational performance and thrust.Our driving ambition is to realise new simulation technology for the ultra-high resolution and extreme scale needed for meaningful virtual certification models. For Rolls-Royce, virtual certification will bring a major business transformation requiring unprecedented trust in simulation and fundamental changes to design processes and skills. Estimated cost savings for virtual certification are measured in the many £millions per engine programme; but, we also estimate that each simulation will require a billion core hours. At this scale, savings from computational cost and performance optimisation will be £millions per design study. Hence the need for ASiMoV to push forward the boundaries of numerical modelling and simulation on the next generation of Exascale supercomputers.