Unsteady Flow Calculation of Sophisticated Exhaust Systems Using a Multibranch Junction Model

Author:

Bulaty T.1,Widenhorn M.1

Affiliation:

1. ASEA Brown Boveri Ltd., Baden, Switzerland

Abstract

The flow in a complex engine manifold is computed by generalizing the three-branch to the n-branch junction model. Energy-related pressure losses are implemented in the one-dimensional continuity equation and the effects of choked flow and changing flow patterns are considered. The computational results are compared with measurements on an engine with multi-entry pulse converter and compact single pipe exhaust systems. The influence of several parameters on the fuel consumption is determined.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Cited by 5 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Formulation and validation of boundary conditions at a branched junction for nonlinear waves;Journal of Sound and Vibration;2006-08

2. Modelación de la renovación de la carga en motores cuatro tiempos. Una revisión;Revista Facultad de Ingeniería Universidad de Antioquia;2003-12-08

3. Analysis and Modeling of the Fluid-Dynamic Effects in Branched Exhaust Junctions of ICE;Journal of Engineering for Gas Turbines and Power;2000-11-03

4. On the calculation of the unsteady compressible flow through an N-branch junction;Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science;1998-01-01

5. Advanced Gas Engine Cogeneration Technology for Special Applications;Journal of Engineering for Gas Turbines and Power;1995-10-01

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