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The OLTRION engineering team runs CFD, FEA and multiphysics simulation programmes for aerospace, automotive, energy and industrial clients, and builds the machine-learning tools that speed them up. These articles come from that project work.
99 articles
How atmospheric plasma treatment simulation sets a process window for cleaning and activation: streamer and filament models, turbulent mixing with ambient air, species flux through the boundary layer, dwell time and dose, part heating, ageing, and surrogates over gap, flow, power and speed.
How spacecraft charging simulation works: current balance with photoemission and secondary emission, differential charging against ESD thresholds, internal charging, discharge coupling into harnesses, material and grounding trades, uncertainty in emission data, and where surrogates help.
How Hall thruster simulation handles anomalous electron transport, wall erosion, discharge oscillations, vacuum-facility effects and the plume: fluid, hybrid and PIC model choices, magnetic nozzles, a validation record and surrogates with a stated range.
How magnetron sputtering simulation connects the magnet field, the PIC-MCC discharge with its power supply, target erosion, sputtered-atom transport through hot thin gas, reactive hysteresis, HiPIMS and film uniformity on moving substrates, with calibration, validation and surrogates of stated range.
How PECVD simulation explains film uniformity, stress and chamber clean: showerhead flow and pumping, the capacitively coupled discharge, fluid, PIC-MCC and electromagnetic models, reaction-set uncertainty, particles, and where surrogates help and where they do not.
How plasma etching simulation links reactor ion and radical fluxes to trench profiles: ICP and CCP models, sheath distributions, charging, aspect-ratio-dependent etching, reaction-set uncertainty, chamber matching and surrogates.
How fired heater CFD handles flame shape, radiation and the process side of the tube: EDC and mixture-fraction models and their documented limits, discrete-ordinates radiation, NOx uncertainty, hydrogen in the fuel gas, the FEA hand-off for creep, and where surrogates help without replacing a plant test.
How chemical reactor CFD separates mixing from kinetics: Damkohler thinking, micromixing closures and the Villermaux-Dushman test reaction, exothermic hot spots and parametric sensitivity, reduced kinetics and neural closures with a stated range, coupling to process-simulator data, and where surrogates help.
How bubble column CFD handles hold-up and flow regimes, drag, lift and wall closures, population balance for bubble size, interfacial area and kLa with reaction, scale-up from pilot to plant, and where interface-resolving checks and AI surrogates help without replacing pilot data.
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