Combating the tyranny of scales in simulation with reduced order modelling

通过降阶建模对抗模拟中尺度的暴政

• 批准号: 556294-2020
• 负责人: Gracie, Robert
• 金额: $ 2.52万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=705723
• 关键词: Combating; tyranny; scales; simulation; reduced

A collaborative research and development project is proposed between BitCan Geosciences & Engineering Inc. (BitCan) and Dr. Gracie of the University of Waterloo (UW). The goal of the project is to take the first meaningful steps towards the development of a commercial simulator for Steam-Assisted Gravity Drainage (SAGD) suitable for use in the fast-paced iterative environment of engineering design. BitCan is the developer an advance Simulation Systems capable of capturing multi-physic phenomena including fluid flow, deformations, and heat transfer under both transient and dynamic conditions. However, the utility of these simulations, specifically in fast-pace and iterative engineering design environments, is greatly hampered by the Tyranny of Scales (ToS) - the difficulty of achieving computationally tractable simulations of complex processes like SAGD that inherently span multiple length and time scales. The ToS has not yet been overcome with High Performance Computing (HPC). A 3-year project to develop Reduce of Models (ROM) for multi-physics problems in geosciences and engineering is proposed, as a paradigm shifting and disruptive technology with the potential of addressing the ToS. ROMs are surrogate models which are highly efficient and derived from more complex and computationally expensive model using a range of Model Order Reduction (MOR) techniques. This project will evaluate existing MOR techniques for simulations of geomechanical phenomena and develop new MOR techniques for multi-physics problems. These objectives will be achieved in an equitable and diverse environment, supporting an inclusive team and superior outcomes. There's a large environmental, economic, and social impetus to see a significant reduction in the GHG emissions and water use associated with SAGD and Oil Sands development in Canada. Simulations can provide important insights and new knowledge into subsurface processes during SAGD leading to process innovations; however, the cost of such models is often prohibitive. Should the ToS be overcome, the environmental impact can be reduced and the competitiveness of Canada's industry can be increased.

BitCan地球科学与工程公司(BitCan)和滑铁卢大学(UW)的格雷西博士提出了一个合作研究和开发项目。该项目的目标是朝着开发适用于快节奏迭代工程设计环境的蒸汽辅助重力排水(SAGD)商业模拟器迈出有意义的第一步。BitCan是一家高级模拟系统开发商，能够捕捉瞬变和动态条件下的多种物理现象，包括流体流动、变形和热传递。然而，这些模拟的实用性，特别是在快节奏和迭代的工程设计环境中，极大地受制于标尺(ToS)的专制-难以实现对SAGD等复杂过程的易于计算的模拟，这些复杂过程固有地跨越多个长度和时间尺度。高性能计算(HPC)尚未克服ToS。提出了一个为期3年的项目，以开发用于地球科学和工程中的多物理问题的模型简化(ROM)，作为一种具有解决ToS的潜力的范式转换和颠覆性技术。ROM是一种高效的代理模型，它使用一系列模型降阶(MOR)技术从更复杂和计算代价更高的模型中派生出来。该项目将评估现有的用于模拟地质力学现象的MOR技术，并开发用于多物理问题的新的MOR技术。这些目标将在公平和多样化的环境中实现，支持一个包容各方的团队和卓越的成果。与加拿大SAGD和油砂开发相关的温室气体排放和用水量显著减少，这是一个巨大的环境、经济和社会推动因素。模拟可以为SAGD过程中的地下过程提供重要的见解和新的知识，从而导致过程创新；然而，这种模型的成本往往令人望而却步。如果能克服TOS，就可以减少对环境的影响，提高加拿大工业的竞争力。