A simulation tool for calculating engine thermal boundary conditions

A simulation tool for calculating engine thermal boundary conditions

Pete Grimley, Principal Application Engineer, Ricardo Software
Virtual Simulation Event 2022

Pete Grimley presents FEARCE-Vulcan, a new analytical Finite Element (FE) based tool for calculating thermal boundary conditions of all the components of the power cylinder using physical models and semi-empirical correlations, without the need for CFD analysis, and which overcomes the limitation of database methods which are not predictive. An iterative solution is used that captures all the heat paths in detail and where each solution runs quickly enough to allow different design variants to be assessed for multiple operating conditions. The calculated temperatures and the corresponding deformations can then be used to predict piston secondary motion and ring dynamics and to better predict friction, wear and oil consumption of the power cylinder and the structural durability of the components.

The toolset is applied to a 2.0 liter 4-cylinder Gasoline Turbocharged Direct Injection (GTDI) engine and validated with measurements on the piston, cylinder head and cylinder bore for different full and part-load conditions.

This work was originally presented at the 2022 SAE WCX and FEARCE-Vulcan was first delivered in the 2021.2 release.

This presentation was not recorded but is available as a PDF.

Realis Simulation, formerly Ricardo Software.

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