Zastosowanie techniki termoanemometrycznej w badaniach modelowych nad rozprzestrzenianiem zanieczyszczeń gazowych

• Autorzy: Moryń-Kucharczyk E. , Jonas P. , Mazur. O. , Podolski M. , Uruba V.

Warianty tytułu

EN

Application of hot-wire anemometry to the investigations of pollutant dispersion

• Języki publikacji: PL

Abstrakty

EN

Simultaneous measurement of velocity and concentration in flow of two gases mixture is required at several wind tunnel experiments, e.g. modeling of pollutant dispersion. A thermoanemometer is a suitable tool for such measurements owing to it broad dynamic range for measurement of velocity and concentration fluctuations. The paper presents a measurement method by means of a special dual hot-wire probe (modification of the DANTEC t. 55P71) in a stream of the air/CO2 mixture. The in-house developed procedure of the simultaneous measurement of both the mean and the r.m.s. values of concentration and velocity was applied to investigation of a gaseous carbon dioxide round jet spreading into a collateral air flow. Performed experiments indicate that the applied measurement method might be useful for the turbulent diffusion investigations in complex conditions. They also confirm the usability of carbon dioxide as a tracer gas in modeling of gaseous pollutant spreading.

Słowa kluczowe

PL

zanieczyszczenia gazowe; przepływ; aerodynamika

EN

gaseous pollutants; anemometry

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Systems : journal of transdisciplinary systems science
• Rocznik: 2006
• Tom: Vol. 11, nr 1
• Strony: 247--254
• Opis fizyczny: bibliogr.10 poz.

Twórcy

autor

Moryń-Kucharczyk E.

autor

Jonas P.

autor

Mazur. O.

autor

Podolski M.

autor

Uruba V.

• Politechnika Częstochowska, Instytut Maszyn Cieplnych, 42-200 Częstochowa, al. Armii Krajowej 21

Bibliografia

• CHASSAING P., Heat transfer from cylindrical anemometer probes in CO2-air mixtures. W: The Physics of Fluids, vol. 20, nr 8, 1977, 1260-1262.
• FAVRE-MARINET M., Experimental techniques in gas mixtures applications to boundary layers and jets. W: Turbulence, Vol.4, 1998, 83-95.
• JONAS P., MAZUR O., MORYŃ-KUCHARCZYK E., PODOLSKI M., The spreading of a carbon dioxide gas round jet into a collateral air flow. Zgłoszone na: CMFF'06, Budapest, 6-9.09.2006
• MAZUR O., JONAS P., URUBA, V., SARBOCH J., Improved calibration method of the conjunct hot-wire/ hot-film probe for simultaneous measurement of velocity and concentration in a stream of two gases mixtures, (in Czech). W: Proc. Coll. Fluid Dynamics, P. Jonas, V. Uruba (red.), IT AS CR Prague, 2002,121-124.
• MAZUR O., REHAK V., SARBOCH J., URUBA V., Formation of an air-helium mixture and determination of their concentration in a hermetically closed calibration device, (in Czech). W: Proc. Coll. Fluid Dynamics, P. Jonas, V. Uruba (red.), IT AS CR Prague , 2001, 59-62.
• MAZUR O., URUBA V., JONAS P., Simultaneous measurement of velocity and molar concentration in a gas-mixture turbulent flow using a dual heated-sensor probe, (in Czech). W: Proc. 18th Symposium on Anemometry, Uvaly u Prahy, 2003, 92-99.
• MORYŃ-KUCHARCZYK E., JONAS P., MAZUR O., URUBA V., Preliminary investigation of the features of a probe with a hot wires pair at measurement in an air/CO2 mixture stream. W: Proc. Coll. Fluid Dynamics, P. Jonas, V. Uruba (red.), IT AS CR Prague, 2003, 89-92.
• MORYŃ-KUCHARCZYK E., JONAS P., MAZUR O., Uruba V., Application of hot-wire anemometry in a wind tunnel modeling of gaseous pollutants spreading, (in Czech). W: Proc. Engineering Mechanics, LZolotarev, A.Pozivilova (red.), Svratka, 2004, 191-192 (pełny tekst na CD).
• SAKAI Y., WATANABE T., KAMOHARA S., KUSHIDA T., NAKAMURA I., Simultaneous measurements of concentration and velocity in a CO2 jet issuing into a grid turbulence by two-sensor hot-wire probe. W: Int. J. of Heat and Fluid Flow, 22, 2001, 227-236.
• WAY J., LIBBY P.A., Hot-wire probes for measuring velocity and concentration in helium - air mixtures. W: AIAA J., vol.8, nr.5, 1970, 976-978.