Icarus supported by the Swedish Innovation Agency Vinnova and KTH Innovation are now leading a joint team with world-leading partners to bring the technology to the aerodynamics industry which has the potential to revolutionize computational prediction and efficiency.
Our breakthrough adaptive Direct FEM technology gives fast and reliable prediction of turbulent separated flows for a full vehicle, identified as the main CFD challenge today [NASA Vision 2030, Jameson] with the following features:
- No explicit turbulence model
- No wall model: slip = small friction
- No parameters to fit
- First principles - solve purely conservation of momentum + incompressibility
- Direct stabilized FEM simulation, automated in Unicorn/FEniCS
- No manual mesh design - goal-oriented adaptive error control
- High performance - 10x faster and cheaper than Exa/RANS in HiLiftPW-3
- Compatible with current CFD workflow - plug-in replacement for CFD solver
- Fast and reliable prediction of turbulent separated flows for a full vehicle, identified as the main CFD challenge today [NASA Vision 2030, Jameson]
- Extensively validated and compared against world-leading competition at HiLiftPW (NASA/Boeing) and highest level of commercial CFD.
- Scientific method - Open Source - reproducible and falsifiable
The flow simulator by Jansson opens the possibility of predicting the performance of new designs with the best possible simulation at given cost.
Johan Jansson, Claes Johnson, Ridgway Scott, Massimiliano Leoni,
Tamara Dancheva, Ezhimathi Krishnasamy, Rahul Kumar, World-unique
Direct FEM prediction of drag - opening new paradigm for aircraft
and general design, preprint, 2019
Johan Jansson et. al., Time-resolved adaptive direct fem simulation of high-lift aircraft configurations. Springer Brief:
Numerical simulation of the aerodynamics of high-lift configurations, 2017.
Johan Hoffman, Johan Jansson, Claes Johnson, New Theory of Flight, Journal of Mathematical Fluid Mechanics, 2015
Johan Hoffman, Johan Jansson, Niclas Jansson, Rodrigo Vilela de Abreu, Claes Johnson, Computability and
Adaptivity in CFD, Encyclopedia of Computational Mechanics, 2016
Johan Hoffman, Johan Jansson, Niclas Jansson, FEniCS-HPC: Automated predictive high-performance finite element
computing with applications in aerodynamics, Lecture Notes in Computer Science, 2016
Johan Hoffman, Claes Johnson, Resolution of D'Alembert's paradox, Journal of Mathematical Fluid Mechanics, 2011
Johan Hoffman, Claes Johnson, Computational Turbulent Incompressible Flow, Springer, 2007
Claes Johnson, Johan Jansson, Secret of Flight Web Site, 2012- (older format)
Claes Johnson, Johan Jansson, Secret of Flight Web Site, 2020- (new format, to appear)