APPLICABILITY OF A LAMINAR FLOW BASED MODEL IN PIPEFLOW MODELLING OF WATER HYDRAULIC SYSTEMS

Authors

  • Timo Leino Tampere University of Technology, Institute of Hydraulics and Automation IHA P.O. Box 589, 33101 Tampere, Finland
  • Matti Linjama Tampere University of Technology, Institute of Hydraulics and Automation IHA P.O. Box 589, 33101 Tampere, Finland
  • Kari Tapio Koskinen Tampere University of Technology, Institute of Hydraulics and Automation IHA P.O. Box 589, 33101 Tampere, Finland
  • Matti Juhani Vilenius Tampere University of Technology, Institute of Hydraulics and Automation IHA P.O. Box 589, 33101 Tampere, Finland

Keywords:

turbulent flow, water hydraulics, pipeline, pressure transient

Abstract

Turbulent flow in pipes is usually avoided in traditional oil hydraulics. However, using water as a hydraulic flu-id, the flow can be regarded as turbulent and the Reynolds number is usually between 10000 and 200000. Most of the pipe models are formed assuming the flow to be as laminar. One pipe model has been developed using a varia-tional method and modal approximation. In this research the applicability of this model to simulate strongly turbu-lent pipe flow has been studied. The comparison between the simulated and measured results is made in time do-main. These results show that this pipe model can be used in practical designing also when the flow is turbulent.

Downloads

Download data is not yet available.

Author Biographies

Timo Leino, Tampere University of Technology, Institute of Hydraulics and Automation IHA P.O. Box 589, 33101 Tampere, Finland

Leino Timo Johannes was born in Uusikaupunki, Finland in 1973. He received the MSc degree in November 1999 from the Tampere University of Tech-nology (TUT). He works currently as a re-searcher at Institute of Hydraulics and Auto-mation (IHA), TUT. His current main re-search area is Low Pressure Water Hydrau-lics.

Matti Linjama, Tampere University of Technology, Institute of Hydraulics and Automation IHA P.O. Box 589, 33101 Tampere, Finland

Linjama Matti was born in Kivijärvi, Finland in 1971. He received the MSc degree in 1995, Licentiate of Technology degree in 1996 and Doctor of Technology degree in 1998 all from the Tampere University of Technology and in machine automation. He works currently as a senior researcher at Institute of Hydraulics and automation, Tampere University of technology. His current research is in simula-tion and motion control of low-pressure water hydraulic systems.

Kari Tapio Koskinen, Tampere University of Technology, Institute of Hydraulics and Automation IHA P.O. Box 589, 33101 Tampere, Finland

Koskinen Kari Tapio (Born 30th June 1962) is Professor of Fluid Power in Institute of Hydraulics and Automa-tion (IHA) in Tampere University of Tech-nology (TUT) in Finland. He graduated as Dr.Tech in 1996. Since 1986 he has been acting in many kinds of R&D positions inside and outside TUT. Since 1998 he has been the leader of Water Hydraulics Research Group in IHA. He has published about 70 technical and scientific papers.

Matti Juhani Vilenius, Tampere University of Technology, Institute of Hydraulics and Automation IHA P.O. Box 589, 33101 Tampere, Finland

Vilenius Matti Juhani (Born 25th March 1948) is Professor and Head of Institute of Hydraulics and Automa-tion (IHA) in Tampere University of Tech-nology (TUT) in Finland. He graduated as Dr.Tech in 1980. Since 1971 he has been acting in many kinds of R&D positions inside and outside TUT. He has long experience as an academic level teacher and supervisor as well as an organizer of international confer-ences. He has published about 200 technical and scientific papers.

References

Budny, D. D., Wiggert, D. C. and Hatfield, F. J. 1991. The Influence of Structural Damping on In-ternal Pressure During a Transient Pipe Flow. Jour-nal of Fluids Engineering, Vol. 113(3), pp. 424 - 429.

Harris, F. 1978. On the Use of Windows for Harmonic Analysis with the Discrete Fourier Transform. Pro-ceedings of the IEEE, 66, pp. 51 - 83.

Kajaste, J. 1998. Experiences in simulating pipeline dynamics in large-scale mechatronic fluid power systems. Proceedings of The 2nd Tampere Interna-tional Conference on Machine Automation ICMA’98, pp. 789 - 803.

Kajaste, J. 1999. Pipeline models for large-scale fluid power systems, analysis and validation. Proceed-ings of The 6th Scandinavian International Confer-ence on Fluid Power, SICFP’99, pp. 529 - 543.

Leino, T., Linjama, M., Koskinen, K. T. and Vilenius, M., 2000. Experimental Study on Dynam-ics of Turbulent Pipeline Flow. Proceedings of 6th Triennial International Symposium on Fluid Con-trol, Measurement and Visualization.

Mäkinen, J., Piché, R. and Ellman, A. 2000. Fluid Transmission Line Modeling Using a Variational Method. Journal of Dynamic Systems, Measure-ment, and Control, ASME, Vol. 122, pp. 153 - 162.

Viersma, T. 1980. Analysis, Synthesis and Design of Hydraulic Servosystems and Pipelines. The Nether-lands: Elsevier Scientific Publishing Company.

Woods, R. 1983. A First-Order Square-Root Approxi-mation for Fluid Transmission Lines. Fluid Trans-mission Line Dynamics, edited by Franke, M. and Drzewiecki, T., ASME, pp. 37 - 49.

Downloads

Published

2001-08-01

How to Cite

Leino, T., Linjama, M., Koskinen, K. T., & Vilenius, M. J. (2001). APPLICABILITY OF A LAMINAR FLOW BASED MODEL IN PIPEFLOW MODELLING OF WATER HYDRAULIC SYSTEMS. International Journal of Fluid Power, 2(2), 37–46. Retrieved from https://journals.riverpublishers.com/index.php/IJFP/article/view/638

Issue

2001: Vol 02 Iss 2

Section

Original Article

Most read articles by the same author(s)

1 2 > >>