Results of several blind benchmarking studies in both CFD and FEA show that even experienced simulation engineers consistently fail to match physical test results. This suggests that if your primary means of solution validation is relying on a panel of experts, you could be in for a surprise! In this workshop, we’ll review some of these studies, discuss how blind benchmarking can increase the rigor of your simulations, and hold an open and frank interactive discussion session to summarize our findings and propose some ways forward.
Moderation: SGM Working Group
The concept of 7 levels of validation has been previously presented at NAFEMS events, and will be incorporated into future publications. But how it is working for users in industry? This workshop will look at real-life example of end-user validation efforts , looking at what worked well, and where there is most room for improvement.
In this session we’ll cast a reflective gaze on the evolution of Computational Fluid Dynamics (CFD) over the last 100 years and try to imagine what the future might hold for the discipline. To illustrate the evolution of CFD during the last century, NAFEMS CFD Working Group has constructed a timeline detailing the chronology of key contributions, starting with Lewis Fry Richardson (LFR) and his seminal work ‘Weather Prediction by Numerical Process’, which was published in 1922. In fact, there are several strands to the timeline representing the contributions from physical/fluid-dynamic, mathematical, numerical/ computational, algorithmic, and technological (computer) developments. The timeline will be presented and discussed, and delegates will be invited to volunteer their own thoughts and contributions. A structured open discussion will also consider the major issues for CFD in the current day, and speculate how CFD may evolve over the coming twenty years.
Moderation: CFD Working Group, Steve Howell (Abercus)
Digital modelling and model based Engineering is currently a hot discussion topic in the engineering community. However, there is still a lot of disconnected processes in industry and most of the decisions are still based on reports. A lot of uncertainty quantification work is done in the various functional areas but an overarching end-to-end framework is missing. This topic is also relevant for the area of Machine Learning / Artificial Intelligence where models are fit to data and the uncertainties need to be aggregated, especially if these models are used in any autonomous systems activities. The panel will discuss industry trends and requirements in this area and will address questions from the audience.
Participants: Dietmar Vogt (Airbus), Alexander Karl (Rolls-Royce), David Riha (SwRI), Steve Legensky (Intelligent Light)
Industrial practitioners, and vendors will share their point of view in 5 minutes and then respond to questions from the audience. The aim is to inform the audience about the state of the art and allow the audience to share their point of view with the panelists. A shared view of current challenges will provide valuable input to the NAFEMS SPDM Best Practices Focus Team's activities.
The focus of the Stochastics Working Group (SWG) is to champion and improve best practices that relate to stochastic engineering analysis and simulation methods and tools. By considering various sources and forms of uncertainty that exist in an engineering setting, the outcomes of virtual product development activities can be brought closer to the real world behavior of the modelled systems and components through the use of stochastic tools and methods. This will allow significantly more business value to be extracted from investments in engineering analysis and simulation. To promote discussion and challenge current practices and the state-of-art of stochastic methods related specifically to epistemic uncertainty (uncertainty in knowledge about a problem), the NAFEMS Stochastic Working Group has developed a pair of new challenge problems focused specifically on uncertainty in this form.
This workshop will provide a short summary of solutions to the current challenge problems from both the SWG and community submissions. Additionally, background theory and limitations of relevant methods, and results interpretation will be discussed.
Presenters: Ian Paulson, David Riha, Alexander Karl
Moderation: Andy Richardson (Phronesim)
This a forum for SPDM practitioners from industry vendors and systems integrators to share opinions and experience on current technical issues, especially those which could lead to best-practice definitions and standards. The first topics are the core SDM data-model and a standardised approach to connecting interactive CAE applications to SPDM platforms using standard protocols and vocabularies. We will share presentations of possible standard decoupled approaches to CAE application integration and then discuss what a standard approach could look like.
Moderation: M. Norris (the SDM Consultancy), Steve Howell (Abercus)
Reports and summaries from the ASSESS Congress 2023
Moderation: Joe Walsh (ASSESS)
Moderation: Joe Walsh (ASSESS)
Moderation: Joe Walsh (ASSESS)
Organiser: VMAP Standards Community
The lack of software standards in virtual engineering workflows and incompatible interfaces for the transfer of simulation data not only cause additional costs and complex manual adaptation but also lead to inflexible IT solutions, loss of information and significant delays in the overall design process. The standardisation of data interfaces in CAE is therefore vital for all industry segments where simulation processes are central to the product and process design.
The VMAP CAE Data Standard was initially developed by a consortium of 29 partners from industry, software domain, and academia to enable the storage of simulation results in an open and vendor neutral format.
The VMAP Standardisation Community is actively discussing further extensions of the standard:
The requirement analysis and the extension of the VMAP standard specifications will be driven by small test cases and realistic use cases from industry.
The aim of this workshop is to discuss the needs and possibilities of such extensions together with user experts from different industry sectors and developers from software companies.
A short introductory lecture on the VMAP standard as well as short presentations on each of the extensions discussed will serve as a stimulus for an open technical discussion among all participants involved. The workshop will be open for any interested party and engineer.
SPDM can be of great value in terms of supporting ISO 9001 certification, providing traceability and a secure system of record. Importantly, effective SPDM solutions enable time-saving by analysts at the point of use. It is critical to the adoption of an information system that it delivers tangible benefits to its target users, especially if those users are busy, expensive, mission-critical staff members. This workshop will describe and demonstrate how an SPDM solution helps an analyst to perform a CFD analysis, ensuring that data is only entered once and storing it for re-use so that further analyses can leverage work already done. An example from the moderators own experience will be demonstrated, and alternative solutions also discussed.
Moderation: Steve Howell (Abercus)