NextSim is in line with the impact objectives of the call EuroHPC-03-2019. In particular:
Contribution to the realisation of the EuroHPC overall and the specific objectives:
- Providing world-class Petascale and pre-Exascale supercomputing and data infrastructure for European scientists (in academia (UPM, CIMNE/UPC) and research centres (BSC, DLR, ONERA) and main industrial players (AIRBUS, CERFACS).
- Achieving excellence in High Performance Computing applications for world-class performance through development and optimisation of codes and applications and other High Performance Computing-enabled large-scale applications in a co-design approach, supporting Centres of Excellence in High Performance Computing applications and large-scale.
- Increasing the innovation potential of leading industry, using advanced High Performance Computing infrastructures, applications and services, through the creation and in particular through the networking and coordination of national High Performance Computing competence centres.
- Improving the understanding of High Performance Computing and contributing to reducing skills gaps in the Union related to High Performance Computing through awareness, training and dissemination of know-how.
Enabling a demonstrably more competitive and innovative European industry, including SMEs, and maximising market impact of the project’s results
NextSim proposes upstream research focused on improving the technology with proven concepts; hence it contributes to standardization, certification and regulatory issues.
Performing this research in Europe will increase Europe’s ability to set standards in this area, and thus gain worldwide influence, which is one of the objectives of the ETP4HPC agenda. Participation of both public and private sectors in the project will ensure that the new concepts are validated in order to accelerate market adoption and the standardization of new technologies created within NextSim.
All NextSim’s partners are essential European players where the development of simulation techniques is concerned and project will give them the opportunity to exchange experiences and compare results. We will incorporate this new knowledge into a common solver available all partners across Europe, which will facilitate the rapid introduction of new and innovative methods and modules into new simulation tools.
The impact on international research programs and frameworks is ensured by the active participation of all consortium members in projects at national and international levels. Additionally, the NextSim consortium brings together representatives of universities, research centres and very large industry (with a variety of products: aircraft, helicopters, space, etc.) covering all players interested in the process, from basic research to applied use. During the implementation of the project all partners will be integrated in upstream research and innovation and apply their technologies to make the exploitation of the proposed techniques successful, leading to the most competitive products.
Significant improvements in the target software and codes, in terms of e.g. efficiency, scalability, refactoring, adaptation to new software engineering and programming environments and tools, and optimisation for novel HPC hardware and system software
he NextSim research is in line with the expected impacts of the call, addressing the objective of advancing European excellence in mathematics and algorithms for extreme parallelism and extreme data applications. Innovative and efficient numerical algorithms will be developed to be used in industrial solvers so that industrial capability can progress at the pace that HPC technology offers.
New algorithms designed by NextSim will improve the convergence and accuracy of the solutions, which are specifically adapted to extreme scale heterogeneous computing platforms, furthering European excellence in mathematics and algorithms, opening a new route to achieve breakthroughs in simulation speed-up that will ultimately benefit from Exascale-class computing.
NextSim research will analyze and find space for improvement in the fundamental algorithms used in the aeronautical simulation solvers with the aim to provide cost-effective highly accurate computational tools optimized by a multidisciplinary approach. The measurable objective of less than one hour to complete a 3D aircraft simulation and overnight for complex 3D unsteady TSRS solutions will enable the aircraft designers to calculate solutions faster and to get much more optimized results in less time.
Greatly accelerate the time to market for products and services based on HPC codes
NextSim will increase the capabilities of current numerical simulation tools by re-engineering them for extreme-scale parallel computing platforms, thus advancing technology. Application of these methods to industrial problems will lead to future development of highly efficient and accurate toolsets able to automatically predict flow physics, forces, radiated acoustics, stresses, evolution of the design status, and the optimal shape for any specified constraints (this will be address in WP1-4 and documented in WP1 and 5). This in turn will bring significant progress towards the design and modeling of aircraft components and subsystems in a short time and with high accuracy and ensure that virtually designed and certified aircraft are safe and reliable and meet the performance and environmental targets proposed by European policies.
Enabling CFD tools to benefit fully from emerging extreme scale HPC technologies will have an immense impact on aircraft design, including:
Minimizing risks for rework
Reduction of wind tunnel (WT) testing of the final design phase
Reduction of time spent in the aircraft development life-cycle
Improvements in aviation’s impact on the environment and safety.
Reducing costs by adding value to the testing, certification and approval processes
Some examples of problems with strong environmental impacts for which a step change in numerical simulation capabilities will provide further insight are:
- Accurate prediction of boundary layer flows. Since viscous drag accounts for 40% of total drag and laminar drag is five times lower that turbulent drag, predicting laminar-turbulence transition and the effect of flow control devices on aerodynamics could have a theoretical reduction of about 15% of total airplane drag.
- Better understanding of the solutions at low speed configurations and better prediction of maximum lift will have a major influence on sizing, economics, and safety of the aircraft; and help to develop more efficient and lighter high-lift devices.
- Maximum accuracy is obtained by the direct numerical integration of the Navier-Stokes equations; however, as of today the available computational resources are not enough to capture the small scales present in turbulence, highly detached flows or acoustics which directly affect the environmental issues. Improving the efficiency of CFD will facilitate these predictions.
NextSim’s advanced simulation and post-processing and systems may also be applied in the future to model interdependencies between air transport, environment and society; and to assess the potential of alternative fuels prior to production (including for certification purposes).
Support a sustainable industrial HPC software capability in Europe
- Aeronautical technologies are a proven catalyst for innovation and spill-over into many other economic and technological sectors.
- Improvements in HPC technologies applied to fast and efficient designs in short timescales, could bring broader and new applications of Exascale HPC solutions to many other disciplines (automotive, manufacturing, biology, traffic control or medicine).
As listed in the Strategic Research and Innovation Agenda (SRIA) of the Advisory Council for Aviation Research and Innovation in Europe (ACARE).
- Strategic European aerospace test, simulation and development facilities are identified, maintained and further developed
- Research and innovation actions could target new technologies and concepts that are not currently used in aeronautics or that have not yet been put in combination in the aviation sector
- To advance in the improvement of the performance of the existing industrial numerical simulations tools.
The importance of simulation in aeronautics is growing every day, with an ever-increasing number of applications for it. A proof of that is the way in which simulation is reflected in the different challenges that are discussed in the Innovation Agenda:
- Challenge Aero1: Meeting societal and market needs.
- Challenge Aero2: Maintaining and extending industrial leadership.
- Challenge Aero3: Protecting the environment and the energy supply.
- Challenge Aero4: Ensuring safety and security.
- Challenge Aero5: Prioritising research, testing capabilities and education.
This project has received funding from the European High-Performance Computing Joint Undertaking Joint Undertaking (JU) under grant agreement No 956104. The JU receives support from the European Union’s Horizon 2020 research and innovation programme and Spain, France, Germany.