Experimental research on velocity profiles in selected flow systems

• Autorzy: Kabaciński M.
• Języki publikacji: EN

Abstrakty

EN

A problem of measuring of velocity profiles with the use of a fully automated test stand is presented in this paper. Due to the installed measurement equipment and various software alternatives it is possible to assess the inlet effect and distribution of velocities in the vicinity of averaging Pitot tubes in order to determine the phenomena occurring in their vicinity (recirculation, main stream direction) and verify the numerical models of turbulence. Due to the stream recirculation in the vicinity of the probes tested in a wind tunnel, a two-way probe was used instead of a Pitot tube. A linear module with a stepper motor formed an integral part of the measurement system whereby it was possible to determine the position of the measurement probe with a precision of 0.1mm. The measuring anemometer location, the possibility of adjusting the stream mean velocities and data acquisition were established by means of an original program. As far as the research in pipelines is concerned - the resulting characteristics allow the uncertainty of measurement to be precisely determined, which should be accounted for during the determination of air fluxes at locations which are not included in the technical documentation of a flowmeter.

Słowa kluczowe

EN

velocity profiles; air flow measurement; closed conduits; automated test stand; differential pressure flowmeter

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2012
• Tom: Vol. 16, No 3-4
• Strony: 185--201
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Kabaciński M.

• Opole University of Technology

Bibliografia

• [1] Raisutis R 2006 Flow Meas. Instrum. 17 (4) 201
• [2] Takeda Y 1995 Exp. Therm. Fluid Sci. 10 (4) 444
• [3] Obayashi H, Tasaka Y, Kon S and Takeda Y 2008 Flow Meas. Instrum. 19 (3-4) 189
• [4] Mishra R, Singh S N and Seshadri V 1997 Flow Meas. Instrum. 8 157
• [5] Armenante M, Luo C, Chou C-C, Fort I and Medek J 1997 Chem. Eng. Set. 52 (20) 3483
• [6] 2006 Flow Sensor Introbar - Technical Documentation, Introl, Katowice (in Polish)
• [7] 2002 Annubar Flowmeters, Catalogue Card 00813-0114-4809 (in Polish)
• [8] Pospolita J 2004 Fluid Flow Measurements, Studies and Monographs, Printing House PO (in Polish)
• [9] Kabza Z 1993 WSI Scientific Issue in Opole, Electricity 194 (37) Opole (in Polish)
• [10] Kabaciński M and Pochwała S 2011 Measurement Apparatus Control 2 157 (in Polish)
• [11] 2008 Measurement of Fluid Flow m Closed Conduits - Velocity Area Method using Pilot Static Tubes, ISO 3966:2008
• [12] Kabaciński M and Pawliczek R 2011 7th Int. Conf. Mechatromc Systems and Materials, MSM 2011, Kaunas
• [13] Kabaciński M and Pospolita J 2011 Flow Meas. Instrum. 22 421
• [14] Cierniak W 2003 Archiving of Mining Sciences 48 415
• [15] 2011 TEST-THERM, Statte Pitot Tubes, Technical Documentation (in Polish)
• [16] Waluś S 2003 Metrological Optimization of Fluid Flux Measurement by Means of Sampling Flowmeters, Monograph. Silesian University of Technology, Gliwice (in Polish)
• [18] Kabaciński M and Pospolita J 2008 Flow Meas. Instrum. 19 (1) 17
• [19] Kabaciński M and Pospolita J 2006 Chem. Process Eng. 27 (3/1) 601