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Vol: 47(61) No: 1 / March 2002      

Applications for Experimental Study of Hydraulic Phenomena in Hydrodynamic Circuits
Vladimir Cretu
Computer Science and Engineering Department, "Politehnica" University of Timisoara, 2, Vasile Parvan Bd., 1900 – Timisoara, Romania, phone: +40 256 192049, e-mail: vcretu@cs.utt.ro, web: http://www.cs.utt.ro
Liviu E. Anton
Department of Hydraulic Machinery, "Politehnica" University of Timisoara, 1, Mihai Viteazul Bd., 1900 – Timisoara, Romania, phone: +40 256 204333
Mihai V. Micea
Computer Science and Engineering Department, "Politehnica" University of Timisoara, 2, Vasile Parvan Blvd., 1900 – Timisoara, Romania, e-mail: micha@dsplabs.utt.ro, web: http://dsplabs.utt.ro
Alexandru Baya
Department of Hydraulic Machinery, "Politehnica" University of Timisoara, 1, Mihai Viteazul Bd., 1900 – Timisoara, Romania
Romeo Resiga
Department of Hydraulic Machinery, "Politehnica" University of Timisoara, 1, Mihai Viteazul Blvd., 1900 – Timisoara, Romania
Dan Chiciudean
Computer Science and Engineering Department, "Politehnica" University of Timisoara, 2, Vasile Parvan Blvd., 1900 – Timisoara, Romania, e-mail: cdan@dsplabs.utt.ro


Keywords: hydraulic phenomena, applications, hydrodynamic circuit, Darcy coefficient, Weissbach coefficient, circuit operating characteristics.

Abstract
The paper focuses on the design and implementation of a set of applications for real-time experimental study of hydraulic phenomena in hydrodynamic loops, using distributed computing environments. A closed-circuit hydrodynamic tunnel system was developed as support for the analysis of viscous flow of fluids and the study of some aspects related to the transient operation of the hydraulic generator. The main hydrodynamics parameters – rate flow and pressure – are sampled from the circuit and then converted into digital data using state-of-the-art transducers and a real-time data acquisition system specially designed for this purpose. Using a high-performance distributed computing network and specialized software, such as the National Instruments LabVIEW package, we developed a set of applications for studying theoretical formulas describing essential hydraulic and hydrodynamic phenomena, as well as for calculating key functional parameters of hydrodynamic circuits.

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