Overview of uncertainty sources in flow velocity vector measurement by LDA
Само за регистроване кориснике
2012
Аутори
Ristić, SlavicaIlić, Jelena
Ristić, Ognjen
Čantrak, Đorđe
Tašin, Slobodan
Остала ауторства
Rajić, ZoranIsaković, Jovan
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Many sources of uncertainties are inherent in LDA practices and must be recognized to obtain good experimental results. Analysis of uncertainty, for tests that include LDA measurements of velocity vectors in wind tunnels or in cylindrical pipe swirl flows is very complex problem. An overview of the most significant uncertainty sources in the LDA measurements is presented. One of the main groups of uncertainty sources is determined by the optical components arrangement. In this paper, special attention is paid to estimation of laser-Doppler anemometry uncertainty of measurement volume positioning in test devices caused by the wind and water tunnel windows thickness, or by the pipe wall curvature (without using refractive index matching). The required corrections, for measurements of velocity components such: shift of measuring volume and its orientation are analyzed and determined for VTI wind and water tunnels and for some very often used geometry of cylindrical pipes in industry. Depe...nding on different experimental conditions, some of these sources of uncertainty may be neglected, but generally, it is necessary to take
into account all of them in all optical methods, as LDA, PDA, PIV and so on.
Кључне речи:
LDA / measurement uncertainty / wind and water tunnel / cylindrical pipeИзвор:
Proceedings 5th International Scientific Conference OTEH 2012, 2012, 43-48Издавач:
- Beograd : Vojnotehnički institut
Финансирање / пројекти:
- Примена савремених мерних и прорачунских техника за изучавање струјних параметара вентилационих система на моделу енергетски изузетно ефикасног (пасивног) објекта (RS-MESTD-Technological Development (TD or TR)-35046)
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Ristić, Slavica AU - Ilić, Jelena AU - Ristić, Ognjen AU - Čantrak, Đorđe AU - Tašin, Slobodan PY - 2012 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4642 AB - Many sources of uncertainties are inherent in LDA practices and must be recognized to obtain good experimental results. Analysis of uncertainty, for tests that include LDA measurements of velocity vectors in wind tunnels or in cylindrical pipe swirl flows is very complex problem. An overview of the most significant uncertainty sources in the LDA measurements is presented. One of the main groups of uncertainty sources is determined by the optical components arrangement. In this paper, special attention is paid to estimation of laser-Doppler anemometry uncertainty of measurement volume positioning in test devices caused by the wind and water tunnel windows thickness, or by the pipe wall curvature (without using refractive index matching). The required corrections, for measurements of velocity components such: shift of measuring volume and its orientation are analyzed and determined for VTI wind and water tunnels and for some very often used geometry of cylindrical pipes in industry. Depending on different experimental conditions, some of these sources of uncertainty may be neglected, but generally, it is necessary to take into account all of them in all optical methods, as LDA, PDA, PIV and so on. PB - Beograd : Vojnotehnički institut C3 - Proceedings 5th International Scientific Conference OTEH 2012 T1 - Overview of uncertainty sources in flow velocity vector measurement by LDA EP - 48 SP - 43 UR - https://hdl.handle.net/21.15107/rcub_machinery_4642 ER -
@conference{ author = "Ristić, Slavica and Ilić, Jelena and Ristić, Ognjen and Čantrak, Đorđe and Tašin, Slobodan", year = "2012", abstract = "Many sources of uncertainties are inherent in LDA practices and must be recognized to obtain good experimental results. Analysis of uncertainty, for tests that include LDA measurements of velocity vectors in wind tunnels or in cylindrical pipe swirl flows is very complex problem. An overview of the most significant uncertainty sources in the LDA measurements is presented. One of the main groups of uncertainty sources is determined by the optical components arrangement. In this paper, special attention is paid to estimation of laser-Doppler anemometry uncertainty of measurement volume positioning in test devices caused by the wind and water tunnel windows thickness, or by the pipe wall curvature (without using refractive index matching). The required corrections, for measurements of velocity components such: shift of measuring volume and its orientation are analyzed and determined for VTI wind and water tunnels and for some very often used geometry of cylindrical pipes in industry. Depending on different experimental conditions, some of these sources of uncertainty may be neglected, but generally, it is necessary to take into account all of them in all optical methods, as LDA, PDA, PIV and so on.", publisher = "Beograd : Vojnotehnički institut", journal = "Proceedings 5th International Scientific Conference OTEH 2012", title = "Overview of uncertainty sources in flow velocity vector measurement by LDA", pages = "48-43", url = "https://hdl.handle.net/21.15107/rcub_machinery_4642" }
Ristić, S., Ilić, J., Ristić, O., Čantrak, Đ.,& Tašin, S.. (2012). Overview of uncertainty sources in flow velocity vector measurement by LDA. in Proceedings 5th International Scientific Conference OTEH 2012 Beograd : Vojnotehnički institut., 43-48. https://hdl.handle.net/21.15107/rcub_machinery_4642
Ristić S, Ilić J, Ristić O, Čantrak Đ, Tašin S. Overview of uncertainty sources in flow velocity vector measurement by LDA. in Proceedings 5th International Scientific Conference OTEH 2012. 2012;:43-48. https://hdl.handle.net/21.15107/rcub_machinery_4642 .
Ristić, Slavica, Ilić, Jelena, Ristić, Ognjen, Čantrak, Đorđe, Tašin, Slobodan, "Overview of uncertainty sources in flow velocity vector measurement by LDA" in Proceedings 5th International Scientific Conference OTEH 2012 (2012):43-48, https://hdl.handle.net/21.15107/rcub_machinery_4642 .