The effect of double Venturi's structural parameters on the reinforcement value and flow coeffcient

• Autorzy: Gondek A. , Filiciak T.
• Języki publikacji: EN

Abstrakty

EN

Reinforcement factor of a double Venturi is one of the more important parameters related to sensor shape and structure. The evaluation and the effect of the double Venturi's structural parameters on its value were carried out by means of the regression equation obtained from numerical simulation tests conducted by means of the Fluent program and planned experimental techniques. The presented test results indicate that the largest effect on reinforcement, within the tested field, was the throat diameter of the internal Venturi and the diffuser length of the external Venturi. The second important parameter of a double Venturi is the flow coeffcient K. The analysis of construction parameters was also carried out by means of the regression equation. The parameters which, when enlarged, cause the reduction in the flow coeffcient (K) range are: the diffuser length of the external Venturi, and the first-degree interaction between the internal diffuser length and the internal Venturi's throat diameter. Simulation test results and conclusions have been supported by experimental results.

Słowa kluczowe

EN

double Venturi tube; flow-rate measurement; metorological analysis

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2008
• Tom: Vol. 15, nr 3
• Strony: 289--303
• Opis fizyczny: Bibliogr. 7 poz., rys., wykr.

Twórcy

autor

Gondek A.

autor

Filiciak T.

• Cracow University of Technology, Faculty of Mechanical Engineering Cracow, Poland,

Bibliografia

• 1. Rup K.: Environmental Fluid Mechanics. Wyd. PK, Kraków 2003 (in Polish)
• 2. Rup K., Soczówka M.: “Use of Selected Turbulence Models to Calculate Flow around a Cylinder”. Czasopismo Techniczne, wyd. PK, Z2-M/2001, s.34-53 (in Polish).
• 3. Wilcox P.C.: Turbulence modeling for CFD. DCW Industries, Inc. 1998.
• 4. Wilcox P.C.: “Comparison of two-equation turbulence models for boundary layers with pressure gradient”. AIAA Journal, 31(1993), s. 1414-1421.
• 5. Gondek A., Filiciak T.: Numerical Modeling of Pitot - Venturi as a sensor. Pomiary Automatyka Robotyka, no. 10, 2007, pp. 11-15. (in Polish).
• 6. Gondek A., Filiciak T.: “The Analisis of the Construction Parameters of the Double Venturi Tubes”. Pierwsza Konferencja Naukowo Techniczna. Współczesne Technologie i Urządzenia Energetyczne. Kraków, październik 2007 (in Polish).
• 7. Mańczak K,: Technique of Planing the Experiment. WNT Warszawa 1976 (in Polish)