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Format:

Book

Conference/Event

Author/Creator:

Locci, Carlo, author.

Contributor:

Mann, David

Seeley, Warren

Conference Name:

SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

For transmission engineers, numerical simulations open new possibilities to find the best design out of multiple design variations. For efficient usage of such methods, each design variation must be calculated in a timely manner. The overall performance of a transmission is evaluated throughout several rotations calculated on a 3D moving part. Such calculations are computationally expensive and faster modelling approaches are needed. Volume of fluid is one of the most common numerical approaches used for these configurations. In order to achieve numerical stability and accuracy, the mesh size must be small enough to capture the small scales at the interface. In this work a new mixture multiphase - large scale interface (MMP-LSI) approach was applied for which a large-scale interface individuation criterion is introduced along with the mixture multiphase approach. Such criterion calculates an appropriate closure depending on the regime, accounting for surface tension effects and applying turbulence damping to mimic laminar effects in the vicinity of the interface. It is demonstrated that MMP-LSI allows for larger time steps with respect to VOF. A thorough comparison of the two approaches is carried out in terms of numerical stability, results differences and speed-up. The model is implemented in Simcenter STAR-CCM+ and applied to a 2D two-gear gearbox

Notes:

Vendor supplied data

Publisher Number:

2021-01-0689

Access Restriction:

Restricted for use by site license