7.3.3 Piston Cooling Tutorial
Welcome to the tutorial of piston cooling using oil jet. This tutorial demonstrates piston cooling simulation using coupled fluid-solid heat transfer modelling. The method consists of models of fluid and solid domains that are thermally coupled to one another. One of the models is a 3-D, transient, multiphase, volume of fluid (VOF) model of the fluid behind the reciprocating piston consisting of piston jet and crankcase gases. The other is a piston solid model. The cycle averaged heat transfer coefficient and the reference temperature are mapped from the fluid model to the solid model, and the piston surface temperature is mapped back on the fluid model (Figure 7.219). The coupled simulation is continued, until the temperatures and heat fluxes from both fluid and solid models are stabilized.
This tutorial is performed using the Piston Cooling Template Mesher which takes care of the mesh refinement to capture the oil jet and mapping the data between fluid and solid models.
This tutorial includes:
- Problem overview: A description and schematic of the problem, explaining the conditions involved in the modelling.
- Setting up the model: Building the simulation domain, specifying the physics and conditions.
- Performing simulations: Steps to run the simulation.
- Post processing: Analysis of the simulation results.