Thermal Optimization of Exhaust Assembly for Tractor Trailer Dassault Systemes: Dassault Systemes SE, Propulsion Group

Format:

Book

Conference/Event

Author/Creator:

Mukutmoni, Devadatta, author.

Contributor:

Gona, Kiran

Kandasamy, Satheesh

Li, Han

Rajagopal, Anirudh

Sugiyama, Zen

Conference Name:

Automotive Technical Papers (2024-01-01 : Warrendale, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2024

Summary:

The horizontal exhaust in trucks is preferred over the vertical exhaust stack since the cost of production is lower than that of the vertical stack. The horizontal exhaust also comes with lower fuel costs since the overall drag coefficient is lower than that of the vertical stack. However, since a horizontal exhaust exits into the underbody, it is essential to minimize the exit temperatures of the exhaust to keep component temperatures within design limits.In this study, a shape optimization is executed for the exhaust tip geometry to reduce exhaust exit temperatures while maintaining exhaust pressure by employing a computational fluid dynamics (CFD) workflow, using the geometry and morphing tool PowerDELTA®, coupled simulation approach between PowerFLOW® the flow solver and PowerTHERM® the thermal solver and Isight® for executing the optimization objectives.A good correlation is observed with experimental data for the baseline truck design. The optimization process significantly reduced the exit temperatures of the exhaust. The optimal design performance was confirmed by installing the optimized exhaust geometry to the full vehicle, running the full-vehicle simulation, and observing a similar reduction in the exit temperature of the exhaust

Notes:

Vendor supplied data

Publisher Number:

2024-01-5028

Access Restriction:

Restricted for use by site license