CFD Modeling of the Multiphase Flow and Heat Transfer for Piston Gallery Cooling System Ansys Incorporated

Format:

Conference/Event

Author/Creator:

Yi, Yong, author.

Conference Name:

Powertrain & Fluid Systems Conference and Exhibition (2007-10-29 : Chicago, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

Numerical models are used in this study to investigate the oil flow and heat transfer in the piston gallery of a diesel engine. An experiment is set up to validate the numerical models. In the experiment a fixed, but adjustable steel plate is instrumented and pre-heated to a certain temperature. The oil is injected vertically upwards from an underneath injector and impinges on the bottom of the plate. The reduction of the plate temperature is recorded by the thermocouples pre-mounted in the plate. The numerical models are used to predict the temperature history at the thermocouple locations and validated with the experimental data.After the rig model validation, the numerical models are applied to evaluate the oil sloshing and heat transfer in the piston gallery. The piston motion is modeled by a dynamic mesh model, and the oil sloshing is modeled by the VOF (volume of fluid) multiphase model. Some important design parameters such as the fill-ratio and the heat transfer coefficient distributions are studied to provide guidance for gallery design and finite element analysis

Notes:

Vendor supplied data

Publisher Number:

2007-01-4128

Access Restriction:

Restricted for use by site license