CFD optimisation of the thermal design for a vented electrical machine

CFD and experimental investigation into a non‐intrusive method for measuring cooling air mass flow rate through a synchronous generator

“…The moving parts are frozen in a specific location and the flow field developing in that position can be observed [13]. While less accurate than using the fully transient sliding mesh approach, it is normally used for the analysis of electrical machines [6, 7, 10–12, 14] due to the much lower computational effort required.…”

Multidisciplinary analysis of a 750 kW PMSM for marine propulsion including shock loading response

“…Generally speaking, the performance of electric motors in marine propulsion applications is almost equivalent to an S1 duty cycle [51]. In addition, when an internal air-flow exists, air behaviour inside the machine is critical and forces machine designers to use computational fluid dynamics (CFD) tools in order to obtain an accurate prediction of the convective coefficients in different parts inside the machine [28]. Therefore, in this paper, the thermal analysis of the machine has been performed comparing three different cooling solutions via steady-state CFD simulations using the commercial software ANSYS Fluent [52].…”

“…Moreover, experimentally validated analytical tools for the thermal analysis of different cooling arrangements for PM machines are available [22][23][24][25][26]. Furthermore, optimisation methods and design criteria for different cooling elements have been developed in the last years [27][28][29][30]. In this regard, this paper presents a comparative of the current trend in this sector based on the IC7XW cooling systems [31] (cooling through a water-jacket), which are replacing the widespread IC8XW systems (machine-mounted heat exchangers).…”

Numerical investigations of convective phenomena of oil impingement on end‐windings

“…The geometry was built so the pipe diameters and plenum sizes were variable. Similarly, the mesh was constructed to enable robust and quality meshing to adapt to the aforementioned geometrical changes [10].…”

“…This ensures that the test enclosure is designed to allow for both major and minor adjustments of the principal parameters. This approach facilitates a coupled experimental and CFD approach for the design and optimisation of oil‐jet cooling concepts [10].…”