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THREE DIMENSIONAL CALCULATION OF THE FLOW IN A DI DIESEL ENGINE WITH VARIABLE SWIRL INTAKE PORTS
Technical Paper
2001-01-3230
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The objective of this paper is to analyse the flow characteristics inside the cylinder of a DI Diesel engine at variable swirl number. Initially, the cylinder head is characterised by means of three-dimensional calculations of the steady flow through the intake ports. These calculations have been made for several positions of the throttles, from wide open, to closed, using the STAR-CD commercial CFD code. They have been validated with steady flow experimental data measured with torque-meter. Next, 3D calculations of the compression stroke are presented and compared with experimental measurements. The initial conditions inside the cylinder in the TDC have been estimated using the head characterisation tests and a zero-dimensional model. The results obtained are in good agreement with the experiments.
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Authors
- Jesús Benajes - CMT. Departamento de Máquinas y Motores Térmicos de la Universidad Politécnica de Valencia
- Xandra Margot - CMT. Departamento de Máquinas y Motores Térmicos de la Universidad Politécnica de Valencia
- José V. Pastor - CMT. Departamento de Máquinas y Motores Térmicos de la Universidad Politécnica de Valencia
- Antonio Gil - CMT. Departamento de Máquinas y Motores Térmicos de la Universidad Politécnica de Valencia
Topic
Citation
Benajes, J., Margot, X., Pastor, J., and Gil, A., "THREE DIMENSIONAL CALCULATION OF THE FLOW IN A DI DIESEL ENGINE WITH VARIABLE SWIRL INTAKE PORTS," SAE Technical Paper 2001-01-3230, 2001, https://doi.org/10.4271/2001-01-3230.Also In
References
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