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Modeling of Fuel Line Wave Propagation Induced by Injector Operation
Technical Paper
2000-01-0563
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
Wave propagation in a fuel line bounded on one end by a pressure regulator creating a constant head and on the other by a single fuel injector creating a time dependent flow rate is studied. It is found that a model consisting of a linearized wave equation and a linearized injector/fuel line boundary condition (including lumped damping) is convenient for analytical work. A general closed form solution of the pertinent equations can be found in terms of a recursion relation which holds for any injection history.
Representative solutions are reported for sinusoidal and step function (sudden injector opening or closing) injection histories. Solutions for step function histories are superimposed to create predictions for a variety of periodic (but nonsinusoidal) injection histories. It is found to be possible to extract limiting steady state solutions from these general transient results.
Predictions are compared to experimental data taken on a system consisting of a fuel line bounded at one end by a pressure regulator and on the other by a single fuel injector. The comparisons are shown to verify the behavior predicted by the model.
It is concluded that the model is a useful tool for the analysis of fuel line wave propagation phenomena. It can be easily extended to more complex geometries.
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Authors
- Mary Cortese - Dana Corporation
- Anne Xue - Dana Corporation
- John Peddieson - Tennessee Technological University
- Patrick Jennings - Tennessee Technological University
- Kelly Sellers - Tennessee Technological University
- John Chai - Tennessee Technological University
- Sastry Munukutla - Tennessee Technological University
Citation
Cortese, M., Xue, A., Peddieson, J., Jennings, P. et al., "Modeling of Fuel Line Wave Propagation Induced by Injector Operation," SAE Technical Paper 2000-01-0563, 2000, https://doi.org/10.4271/2000-01-0563.Also In
References
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- Watters, G. Analysis and Control of Unsteady Flow in Pipelines Second Butterworths, Boston 1984
- Moody, F. Introduction to Unsteady Thermofluid Mechanics Wiley New York 1990
- Jones, S. Wood, D. “Predictions and Control of Pressure Surges Due to Valve Closures,” Proceedings of the International Conference on Pressure Surges 1972
- Streeter, V. Lai, C. “Water-Hammer Analysis Including Fluid Friction,” Journal of the Hydraulics Division of ASCE 88 79 112 1962