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LOCATION:Room 5.0A52
DTSTART;TZID=Europe/Stockholm:20250618T120000
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UID:submissions.pasc-conference.org_PASC25_sess170_pap114@linklings.com
SUMMARY:ASiMoV-CCS - A New Solver for Scalable and Extensible CFD & Combus
 tion Simulations
DESCRIPTION:Paul Bartholomew and Alexei Borissov (EPCC, The University of 
 Edinburgh); Christopher Goddard (Rolls-Royce Plc); Shrutee Lakshminarasimh
 a (Infosys); Sébastien Lemaire and Justs Zarins (EPCC, The University of E
 dinburgh); and Michèle Weiland (EPCC, The  University of Edinburgh)\n\nSol
 ving industry-relevant CFD and combustion problems is computationally extr
 emely challenging. Collaborations between industry and academia can drive 
 research into new techniques or algorithms that improve the computational 
 performance of solvers, however there is a tension between keeping commerc
 ially sensitive intellectual property safe, and benefitting from open deve
 lopments. We have designed ASiMoV-CCS, a new CFD and combustion solver, fr
 om the ground up to enable a full separation of open and proprietary sourc
 e code by leveraging modern Fortran features, in particular submodules. Th
 is paper describes the functionality, design choices and implementation de
 tails of the solver, and validates the implementation using two widely stu
 died test cases, the Lid-Driven Cavity and the Taylor-Green Vortex. The pe
 rformance and scalability is evaluated on the UK's national supercomputer 
 ARCHER2 and demonstrates near-linear strong scaling up to 160 nodes (20,48
 0 cores) for medium-sized test cases.\n\nDomain: Climate, Weather, and Ear
 th Sciences\n\nSession Chair: Jan Meisner (Heinrich Heine University Düsse
 ldorf)\n\n
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