Analysis of Flowing Fluid Effect on Flow Averaging Tube

• Autorzy: Kabaciński M. , Lachowicz C. , Pospolita J.
• Języki publikacji: EN

Abstrakty

EN

This paper presents a mathematical model and results of numerical simulations for a fluid flow around a flow averaging tube. The calculations have been performed using the commercially available FLUENT software. The authors have applied the currently known studies of the models of turbulence and their applicability in certain flow conditions and hence selected the RNG k-epsylon turbulence model including appropriate functions to be used for determination of pressures and velocities at the sites of occurrence of considerable gradients. The distributions of pressures and velocities around a sensor are presented along with pressure distributions, instantaneous and averaged in time, on the measuring tube surface. The paper determines the frequencies of measuring tube free vibrations for one sided and two-sided tube fitting for the tube length in the range 100–1500mm. This analysis has been conducted with the aid of solving equations for free undamped vibrations for specific models. The graphical presentation involves an admissible range of tube lengths with one and two-sided fitting for the specified flowing air velocities.

Słowa kluczowe

EN

flow averaging tubes; numerical simulations; flow measurements

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2008
• Tom: Vol. 12, No 3-4
• Strony: 217--226
• Opis fizyczny: Bibliogr. 11 poz., rys., tab.

Twórcy

autor

Kabaciński M.

autor

Lachowicz C.

autor

Pospolita J.

• Opole University of Technology, Mikołajczyka 5, 45-271 Opole, Poland,

Bibliografia

• [1] Syndencham P H and Dudziewicz J 1990 The Handbook of Metrology, Wydawnictwo Komunikacji i Łączności, Warsaw (in Polish)
• [2] Dobrowolski B, Kabaciński M and Pospolita J 2005 Flow Measurement and Instrumentation 16 (4) 251
• [3] Accutube, Technical Documentation, http://www.accutube.com/
• [4] 2005 FLUENT 6.1.22. Fluid Dynamics Analysis Package, Fluid Dynamics International, Inc.
• [5] 2005 GAMBIT 2.2.30. Fluid Dynamics Analysis Package, Fluid Dynamics International, Inc.
• [6] 1991 Flow Measurement: Practical Guides for Measurement and Control (Spitzer D W, Ed.), ISA, Research Triangle Park
• [7] Preso, Technical Documentation, http://www.preso.com/
• [8] Zienkiewicz O C and Taylor R L 2000 The Finite Element Method, 5th Edition, Butterworth-Heinemann, I,II,III
• [9] Szmelter J 1980 Computer Methods in Mechanics, Biblioteka Naukowa Inżyniera, PWN, Warsaw, p. 293 (in Polish)
• [10] Ralston A 1983 Introduction to Numerical Analysis, PWN, Warsaw, p. 536 (in Polish)
• [11] 2000 Introl – Corporate Catalogue, Control-Measurement Apparatus, Katowice