Keeping high power density cool
Accurate thermal modelling of electrical machines and advanced cooling technologies for compact, high power density motors — radial and axial flux — validated over the years through experimental testing at our clients' facilities.
From the duct to the powertrain
We provide expertise in the accurate representation of the motor's thermal behaviour and the integration of the motor thermal model into the overall powertrain simulation framework.
Our cooling concepts address innovation while staying compatible with the overall thermal system architecture and the manufacturer's specifications — keeping powertrain components in their temperature windows while minimizing cooling system complexity and power consumption.
Conjugate heat transfer — flows in as you scroll
Thermal and fluid dynamics, end to end
Thermal simulations — heat transfer
- Thermal conduction
- Thermal convection
- Radiation with simplified models
Fluid dynamics — flow characterization
- Fans, internal flow domains, housings — for various cooling fluids
- Deflector impact on flow, pressure and air distribution
- Fan absorbed power
- Correlation between fan performance and motor thermal performance
Complete coupled simulations
- Advanced turbulence models
- Fluid–structure interfaces
- Anisotropic materials considered
- Parametrized calculations
Analytical calculations
- Pressure drop
- Heat transfer
- Cooling circuits dimensioning
Radial-flux and axial-flux cooling, in practice
Air & contact physics
- Thermal resistance vs. contact pressure between components
- Anisotropic thermal conductivities on copper coils
- Air cooling through forced and natural convection — external and internal solutions
- Detailed thermal modelling of EV inverters
Liquid & oil cooling
- Water-jacket designs; direct oil cooling with immersed stator/coils and internal rotor/stator channels
- VOF simulations of oil/air mixtures: spray, impinging jet, gravity effects, high-speed splashing
- Friction losses between rotating components and oil via VOF — including oil in the air gap
Power density rising, temperatures too?
Our methodologies and best practices are validated against experimental testing — bring us your thermal budget.