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

这个虚拟系统高级仿真和建模（ASiMoV）的繁荣合作伙伴关系的战略愿景是使下一代工程仿真和建模技术的研究和开发成为可能。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度模拟，同时包括热力学，电磁学和CFD的影响。这个级别的模拟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独特地将基础工程和计算科学研究与两家高科技中小企业和劳斯莱斯plc结合起来，以解决远远超出当今数值求解器能力的挑战。通过高性能计算实现的仿真和建模已经改变了产品的设计和制造方式。为Trent XWB开发的技术是世界上最高效的航空发动机，只能通过仿真和建模来实现。然而，下一代产品将对模拟提出要求，而当前技术的增量变化无法满足这一要求。“ACARE飞行路径2050”目标要求对发动机架构进行根本性改变，2015年航空航天技术研究所推进战略将“虚拟认证”确定为2025- 2030年期间所需的关键技术。实现虚拟认证的过程是一个渐进的过程，需要一个完整的证据数据库来说服认证机构相信分析是可信的。它将在若干方面取得进展。其中之一是整个引擎测试来验证操作性能和推力。我们的目标是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的新仿真技术。对于罗尔斯·罗伊斯来说，虚拟认证将带来重大的业务转型，需要对模拟的空前信任，并对设计流程和技能进行根本性的改变。估计虚拟认证的成本节省在每个发动机项目数百万英镑；但是，我们也估计每次模拟将需要10亿个核心小时。在这种规模下，每次设计研究将节省数百万英镑的计算成本和性能优化。因此，ASiMoV需要在下一代百亿亿次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.