The comparison of air flow LDA measurement in simple cylindrical and cylindrical tube with flat external wall

Autor:	Ilić Jelena T., Ristić Slavica S., Čantrak Đorđe S., Janković Novica Z., Srećković Milesa Ž.
Jazyk:	angličtina
Rok vydání:	2013
Předmět:	laser doppler anemometry snell's law measurement volume dislocation decalibration Engineering (General). Civil engineering (General) TA1-2040 Mechanics of engineering. Applied mechanics TA349-359
Zdroj:	FME Transactions, Vol 41, Iss 4, Pp 333-341 (2013)
Druh dokumentu:	article
ISSN:	1451-2092 2406-128X
Popis:	The application of 2D laser Doppler anemometry systems is considered, in the case of fluid flow confined in simple cylindrical and in cylindrical tube with flat external surface of the wall. Geometric optics laws are applied to the central lines of laser beams. Measurement volume dislocations, calibration angles and distances of measurement volume centre from the photo-detector field of view centre are expressed. The expressions derived in this paper were applied to specific turbulent swirl flow in pipe. That revealed several advantages of use of a simple cylindrical tube over nowadays favored use of cylindrical tube with flat external surface. Those results suggest that current avoiding of laser Doppler anemometry measurements with simple cylindrical tubes should be reconsidered.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/ed116c1b038f4663945d2b63ff7a16bc Zobrazit plný text záznamu View record in DOAJ