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1D/3D Comparison of Flow Field Simulations Inside an Exhaust-Type Duct
Technical Paper
2007-01-1398
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this study a detailed numerical analysis of a steady and unsteady compressible flow within an exhaust-type duct is presented. Since the large computational effort required by the analysis of real industrial exhaust geometries, a Y-junction has been chosen as a simplified but representative model. The main purpose of the present work has been the calibration of one-dimensional simulation code, by means of the results comparison with a more accurate three-dimensional CFD computation. Thus, under the steady state condition a suitable tuning parameter has been identified in order to improve the prediction capabilities of the 1-D code. On the contrary, in the case of the transient analyses such a coefficient has revealed to be ineffective, demonstrating the stringent need for 3-D numerical simulations. In addition, interesting information regarding flow field development and waves propagation inside the junctions has been found out.
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Authors
- Daniele Nanni - Laboratorio di Termofluidodinamica Computazionale, Università di Bologna
- Marco Romoli - Laboratorio di Termofluidodinamica Computazionale, Università di Bologna
- Riccardo Rossi - Laboratorio di Termofluidodinamica Computazionale, Università di Bologna
- Stefano Tarabusi - Ducati Motor Holding
- Simone Di Piazza - Ducati Motor Holding
Citation
Nanni, D., Romoli, M., Rossi, R., Tarabusi, S. et al., "1D/3D Comparison of Flow Field Simulations Inside an Exhaust-Type Duct," SAE Technical Paper 2007-01-1398, 2007, https://doi.org/10.4271/2007-01-1398.Also In
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