Enlarging the uniqueness cone of the nine-sensor, T-configuration probe to measure the velocity vector and the velocity gradient tensor
Abstract
The original concept of a nine-sensor T-configuration hot-wire probe to simultaneously measure three velocity and three vorticity components, as well as other velocity gradient-based turbulence properties, assumes three T-arrays, each with three sensors inclined at 45 degrees to the probe axis. It is shown in this paper that probes having sensors asymmetrically arranged with respect to the probe axis, at specific but different geometrical angles, provide larger angular uniqueness domains in comparison to the original probe. To date it was believed that orthogonal arrays in which three sensors are mounted at 54.74. to the probe axis, as well as their vorticity counterparts, have the largest uniqueness domain of all triple-array-based probes. However, the proposed modified design of the T-array provides uniqueness cone half-angles similar to those that can be achieved by the orthogonal triple-array. In more extreme cases (i.e. at larger departures of the sensor angles from 45 degrees), t...he uniqueness range of the modified T-array can be made even larger in comparison to the orthogonal array.
Keywords:
hot-wire / vorticity / velocity / velocity gradient tensorSource:
Measurement Science and Technology, 2010, 21, 6Publisher:
- IOP Publishing Ltd, Bristol
Funding / projects:
- Ministry of Science and Education of Montenegro
DOI: 10.1088/0957-0233/21/6/065401
ISSN: 0957-0233
WoS: 000277588900019
Scopus: 2-s2.0-77952377589
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Institution/Community
Poljoprivredni fakultetTY - JOUR AU - Petrović, Dragan AU - Vukoslavčević, Petar V. AU - Wallace, J.M. PY - 2010 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/2403 AB - The original concept of a nine-sensor T-configuration hot-wire probe to simultaneously measure three velocity and three vorticity components, as well as other velocity gradient-based turbulence properties, assumes three T-arrays, each with three sensors inclined at 45 degrees to the probe axis. It is shown in this paper that probes having sensors asymmetrically arranged with respect to the probe axis, at specific but different geometrical angles, provide larger angular uniqueness domains in comparison to the original probe. To date it was believed that orthogonal arrays in which three sensors are mounted at 54.74. to the probe axis, as well as their vorticity counterparts, have the largest uniqueness domain of all triple-array-based probes. However, the proposed modified design of the T-array provides uniqueness cone half-angles similar to those that can be achieved by the orthogonal triple-array. In more extreme cases (i.e. at larger departures of the sensor angles from 45 degrees), the uniqueness range of the modified T-array can be made even larger in comparison to the orthogonal array. PB - IOP Publishing Ltd, Bristol T2 - Measurement Science and Technology T1 - Enlarging the uniqueness cone of the nine-sensor, T-configuration probe to measure the velocity vector and the velocity gradient tensor IS - 6 VL - 21 DO - 10.1088/0957-0233/21/6/065401 ER -
@article{ author = "Petrović, Dragan and Vukoslavčević, Petar V. and Wallace, J.M.", year = "2010", abstract = "The original concept of a nine-sensor T-configuration hot-wire probe to simultaneously measure three velocity and three vorticity components, as well as other velocity gradient-based turbulence properties, assumes three T-arrays, each with three sensors inclined at 45 degrees to the probe axis. It is shown in this paper that probes having sensors asymmetrically arranged with respect to the probe axis, at specific but different geometrical angles, provide larger angular uniqueness domains in comparison to the original probe. To date it was believed that orthogonal arrays in which three sensors are mounted at 54.74. to the probe axis, as well as their vorticity counterparts, have the largest uniqueness domain of all triple-array-based probes. However, the proposed modified design of the T-array provides uniqueness cone half-angles similar to those that can be achieved by the orthogonal triple-array. In more extreme cases (i.e. at larger departures of the sensor angles from 45 degrees), the uniqueness range of the modified T-array can be made even larger in comparison to the orthogonal array.", publisher = "IOP Publishing Ltd, Bristol", journal = "Measurement Science and Technology", title = "Enlarging the uniqueness cone of the nine-sensor, T-configuration probe to measure the velocity vector and the velocity gradient tensor", number = "6", volume = "21", doi = "10.1088/0957-0233/21/6/065401" }
Petrović, D., Vukoslavčević, P. V.,& Wallace, J.M.. (2010). Enlarging the uniqueness cone of the nine-sensor, T-configuration probe to measure the velocity vector and the velocity gradient tensor. in Measurement Science and Technology IOP Publishing Ltd, Bristol., 21(6). https://doi.org/10.1088/0957-0233/21/6/065401
Petrović D, Vukoslavčević PV, Wallace J. Enlarging the uniqueness cone of the nine-sensor, T-configuration probe to measure the velocity vector and the velocity gradient tensor. in Measurement Science and Technology. 2010;21(6). doi:10.1088/0957-0233/21/6/065401 .
Petrović, Dragan, Vukoslavčević, Petar V., Wallace, J.M., "Enlarging the uniqueness cone of the nine-sensor, T-configuration probe to measure the velocity vector and the velocity gradient tensor" in Measurement Science and Technology, 21, no. 6 (2010), https://doi.org/10.1088/0957-0233/21/6/065401 . .