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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. References [1] L. Anton, A. Baya, \"Mecanica fluidelor si masini hidraulice\", Ed. Orizonturi Universitare, Timisoara, 1998. [2] J. Schetz, A. Fuhs, \"Handbook of fluid dynamics and fluid machinery\", Vol. II: \"Experimental and computational fluid dynamics\", John Wiley & Sons, Inc., 2000. [3] * * *, \"CRE, CRNE – Pumps: Technical Specifications\", Grundfos, 2000. [4] * * *, \"J-7354 Series Pressure Transducer\", Cole-Parmer Instrument Company, 1994. [5] * * *, \"Flow Sensor 8030 INLINE\", TR419743-702-3-IE, Burkert Fluid Control Systems, 1997. [6] * * *, \"AMUX-64T User Manual\", 320253C-01, National Instruments Corporation, 1999. [7] * * *, \"PCI-6032E/6024E/6025E User Manual\", 322072A-01, National Instruments Corporation, 1998. [8] * * *, \"LabVIEW User Manual\", 320999D-01, National Intruments Corporation, 2001. [9] * * *, \"G Programming Reference Manual\", 321296B-01, National Instruments Corporation, 1998. [10] * * *, \"LabVIEW Function and VI Reference Manual\", 321526A-01, National Instruments Corporation, 1997. [11] * * *, \"LabVIEW Instrument I/O VI Reference Manual\", 320537C-01, National Instruments Corporation, 1996. [12] I. E. Idelcik, \"Indrumator pentru calculul rezistentelor hidraulice\", Ed. Tehnica, Bucuresti, 1984. |