VERSION LOG
How VEMOD evolves
Updates to the VEMOD engine, VEMOD GUI and VESUALIZER. Model compatibility also depends on the simulation engine version.
Released · 29 October 202626.10.0
VEMOD simulation engine
- Twin-entry and dual-volute turbines: a new 1D model represents pulsations and interaction between the two branches, with maps for different mass flow splits.
- Diesel and petrol particulate filters: a 1D model of channels coupled through porous walls tracks soot accumulation and filtration efficiency.
- Temperatures within the filter: distributed thermal modelling of the wall, soot layer and casing, with pressure, temperature and deposit thickness profiles.
- 1D gas coolers: extended tube-and-fin geometries and longitudinal temperature, pressure and heat transfer results.
- Improved numerical stability: automatic thermal sub-stepping in pipes, refined connections near pressure equilibrium and improved mass flow filtering.
- Compatibility and outputs: updated XML schema for the new models, retaining support for legacy particulate filter identifiers.
VEMOD GUI and VESUALIZER
- Twin-entry turbines and map families by mass flow split.
- Extended configuration of 0D and 1D particulate filters and gas coolers.
- Condensation and evaporation controls in compatible plenums.
- Independent property windows and shared interactive plotting.
- Comparison of multiple results folders, experimental data and annotations.
- Cooler and filter spatial profiles and turbine branch views.
Documented release · 21 October 20262.0.0
VEMOD simulation engine
- Redesigned architecture compared with the 1.10.x series, with optimised flow and thermodynamic property routines to reduce calculation costs and memory operations.
- A new modular, validated XML input format with shared fluid, material and environment definitions, legacy model conversion tools and clearer input diagnostics.
- Introduction of the 1D cooler, connected to the gas dynamics network, with heat transfer, pressure losses and condensation and evaporation models.
- Extended axial and twin-entry turbine models, alongside initialisation and calculation improvements for DOC, DPF, SCR and LNT aftertreatment systems.
VEMOD GUI and VESUALIZER
- Integrated visual modelling, calculation and post-processing environment.
- Component library for gas systems, engines, hydraulic circuits and control.
- Global reference management and model persistence.
- Web and desktop distributions and remote execution over SSH.
26.10.0 uses year.month.revision numbering. The version was released on 29 October 2026. This summary combines the simulation engine and graphical environment release notes. New features require a compatible solver.
