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Appl. Sci. 2017, 7(5), 480;

A Study of the Transient Response of Duct Junctions: Measurements and Gas-Dynamic Modeling with a Staggered Mesh Finite Volume Approach

CMT–Motores Térmicos, Universitat Politècnica de València, 46022 Valencia, Spain
Author to whom correspondence should be addressed.
Academic Editor: Kuang-Chao Fan
Received: 20 March 2017 / Revised: 28 April 2017 / Accepted: 2 May 2017 / Published: 8 May 2017
(This article belongs to the Special Issue Internal Combustion Engines (ICE) for Ground Transport)
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Duct junctions play a major role in the operation and design of most piping systems. The objective of this paper is to establish the potential of a staggered mesh finite volume model as a way to improve the description of the effect of simple duct junctions on an otherwise one-dimensional flow system, such as the intake or exhaust of an internal combustion engine. Specific experiments have been performed in which different junctions have been characterized as a multi-port, and that have provided precise and reliable results on the propagation of pressure pulses across junctions. The results obtained have been compared to simulations performed with a staggered mesh finite volume method with different flux limiters and different meshes and, as a reference, have also been compared with the results of a more conventional pressure loss-based model. The results indicate that the staggered mesh finite volume model provides a closer description of wave dynamics, even if further work is needed to establish the optimal calculation settings. View Full-Text
Keywords: duct junction; staggered mesh finite volume model; multi-port duct junction; staggered mesh finite volume model; multi-port

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Torregrosa, A.J.; Broatch, A.; García-Cuevas, L.M.; Hernández, M. A Study of the Transient Response of Duct Junctions: Measurements and Gas-Dynamic Modeling with a Staggered Mesh Finite Volume Approach. Appl. Sci. 2017, 7, 480.

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