Positioning Devices For Measuring Spatial Velocity Correlations in Turbulent Swirl Flow in the Pipe by Hot-Wire Probes
Abstract
Measuring spatial correlations of velocity is done by simultaneous measurement of velocity vector in two different measuring points. Usually, the points should be at a very small distance. While performing correlation measurements in turbulent swirling flow in the pipe, it is necessary to have very precise positioning of hot-wire probes, both by angle and distance. In this research, measurements of spatial correlations in such flow field are performed, for two different cases: velocity correlations in two points on different radial distance and in two points on different axial distance, parallel to the pipe axis. For such measurements two original devices for positioning of hot-wire probes are developed. With these devices appropriate angle positioning and radial and axial distance of hot-wire probes are achieved. Cross-correlation diagrams are also given in this article, as an illustration of capabilities of these original devices for hot-wire probes positioning.
Keywords:
Velocity Cross-Correlation / Positioning Device / Hot-Wire ProbeSource:
Experimental Techniques, 2016, 40, 1, 121-128Publisher:
- Springer, New York
Funding / projects:
- Application of Novel Measurement and Computational Techniques on Investigation of Air Flow in Ventilation Systems of Energy Extremely Efficient (“Passive”) Buildings (RS-MESTD-Technological Development (TD or TR)-35046)
DOI: 10.1007/s40799-016-0018-8
ISSN: 0732-8818
WoS: 000384752200014
Scopus: 2-s2.0-84965181578
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Institution/Community
Mašinski fakultetTY - JOUR AU - Lečić, Milan AU - Ćoćić, Aleksandar AU - Čantrak, Svetislav PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2443 AB - Measuring spatial correlations of velocity is done by simultaneous measurement of velocity vector in two different measuring points. Usually, the points should be at a very small distance. While performing correlation measurements in turbulent swirling flow in the pipe, it is necessary to have very precise positioning of hot-wire probes, both by angle and distance. In this research, measurements of spatial correlations in such flow field are performed, for two different cases: velocity correlations in two points on different radial distance and in two points on different axial distance, parallel to the pipe axis. For such measurements two original devices for positioning of hot-wire probes are developed. With these devices appropriate angle positioning and radial and axial distance of hot-wire probes are achieved. Cross-correlation diagrams are also given in this article, as an illustration of capabilities of these original devices for hot-wire probes positioning. PB - Springer, New York T2 - Experimental Techniques T1 - Positioning Devices For Measuring Spatial Velocity Correlations in Turbulent Swirl Flow in the Pipe by Hot-Wire Probes EP - 128 IS - 1 SP - 121 VL - 40 DO - 10.1007/s40799-016-0018-8 ER -
@article{ author = "Lečić, Milan and Ćoćić, Aleksandar and Čantrak, Svetislav", year = "2016", abstract = "Measuring spatial correlations of velocity is done by simultaneous measurement of velocity vector in two different measuring points. Usually, the points should be at a very small distance. While performing correlation measurements in turbulent swirling flow in the pipe, it is necessary to have very precise positioning of hot-wire probes, both by angle and distance. In this research, measurements of spatial correlations in such flow field are performed, for two different cases: velocity correlations in two points on different radial distance and in two points on different axial distance, parallel to the pipe axis. For such measurements two original devices for positioning of hot-wire probes are developed. With these devices appropriate angle positioning and radial and axial distance of hot-wire probes are achieved. Cross-correlation diagrams are also given in this article, as an illustration of capabilities of these original devices for hot-wire probes positioning.", publisher = "Springer, New York", journal = "Experimental Techniques", title = "Positioning Devices For Measuring Spatial Velocity Correlations in Turbulent Swirl Flow in the Pipe by Hot-Wire Probes", pages = "128-121", number = "1", volume = "40", doi = "10.1007/s40799-016-0018-8" }
Lečić, M., Ćoćić, A.,& Čantrak, S.. (2016). Positioning Devices For Measuring Spatial Velocity Correlations in Turbulent Swirl Flow in the Pipe by Hot-Wire Probes. in Experimental Techniques Springer, New York., 40(1), 121-128. https://doi.org/10.1007/s40799-016-0018-8
Lečić M, Ćoćić A, Čantrak S. Positioning Devices For Measuring Spatial Velocity Correlations in Turbulent Swirl Flow in the Pipe by Hot-Wire Probes. in Experimental Techniques. 2016;40(1):121-128. doi:10.1007/s40799-016-0018-8 .
Lečić, Milan, Ćoćić, Aleksandar, Čantrak, Svetislav, "Positioning Devices For Measuring Spatial Velocity Correlations in Turbulent Swirl Flow in the Pipe by Hot-Wire Probes" in Experimental Techniques, 40, no. 1 (2016):121-128, https://doi.org/10.1007/s40799-016-0018-8 . .