A Physical Understanding of how Multiple Mapping Conditioning Works

Wandel, Andrew P. ORCID: https://orcid.org/0000-0002-7677-7129 (2019) A Physical Understanding of how Multiple Mapping Conditioning Works. In: 2019 Australian Combustion Symposium, 4–6 Dec, 2019, Adelaide, Australia.

Abstract

Multiple Mapping Conditioning (MMC) uses a mathematical reference space to provide an alternative dimension for modelling the turbulent transport that mixes parcels of fluid. Conceptualising this process is challenging when relying on the mathematics of the governing equations. This article presents the physical bases underlying the mathematics. The geometric processes used to create maps of the Earth are used as analogies for how combustion systems are modelled. Direct Numerical Simulations (DNS) are used to visualise how the 3-D turbulent distortions of non-premixed scalar fields can be represented by the 1-D mixture fraction. How the mixture fraction can be mapped to a reference variable is described, concluding with the processes used to apply the different methods of MMC to the modelling of turbulent combustion systems.

Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper) Yes Live Archive Historic - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 - 31 Dec 2021) Historic - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 - 31 Dec 2021) 12 Aug 2020 05:40 08 Oct 2020 05:58 Multiple Mapping Conditioning, MMC, map projections, Conditional Moment Closure, CMC, Mapping Closure 09 Engineering > 0913 Mechanical Engineering > 091305 Energy Generation, Conversion and Storage Engineering09 Engineering > 0915 Interdisciplinary Engineering > 091508 Turbulent Flows09 Engineering > 0902 Automotive Engineering > 090201 Automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels) 40 ENGINEERING > 4017 Mechanical engineering > 401703 Energy generation, conversion and storage (excl. chemical and electrical)40 ENGINEERING > 4012 Fluid mechanics and thermal engineering > 401213 Turbulent flows40 ENGINEERING > 4002 Automotive engineering > 400201 Automotive combustion and fuel engineering B Economic Development > 85 Energy > 8507 Energy Conservation and Efficiency > 850702 Energy Conservation and Efficiency in TransportB Economic Development > 85 Energy > 8507 Energy Conservation and Efficiency > 850703 Industrial Energy Conservation and Efficiency http://eprints.usq.edu.au/id/eprint/37515