Comparison of PIV and PDA droplet velocity measurement techniques on two high-pressure water mist nozzles
(2009) In Fire Safety Journal 44(8). p.1030-1045- Abstract
- The need for reliable measurement of droplet velocities and droplet size has increased with the more widespread use of water mist systems. Two optical measuring techniques have been investigated, Particle Image Velocimetry (PIV) and phase Doppler anemometry (PDA). Measurements have been performed on two high-pressure nozzles, a hollow cone nozzle and a full cone nozzle. Both methods performed well close to the nozzle and further away from the nozzle. In the intermediate region the results obtained with PIV are biased against the larger droplets. The two methods complement each other, PIV giving the instantaneous velocity field and PDA giving both the droplet velocity and droplet size at a point. The measurement indicates that higher throw... (More)
- The need for reliable measurement of droplet velocities and droplet size has increased with the more widespread use of water mist systems. Two optical measuring techniques have been investigated, Particle Image Velocimetry (PIV) and phase Doppler anemometry (PDA). Measurements have been performed on two high-pressure nozzles, a hollow cone nozzle and a full cone nozzle. Both methods performed well close to the nozzle and further away from the nozzle. In the intermediate region the results obtained with PIV are biased against the larger droplets. The two methods complement each other, PIV giving the instantaneous velocity field and PDA giving both the droplet velocity and droplet size at a point. The measurement indicates that higher throw length can be archived with a full cone nozzle compared to the hollow cone nozzle, if both nozzles have the same cone angle and flow rate. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1494746
- author
- Husted, Bjarne LU ; Petersson, Per LU ; Lund, Ivar and Holmstedt, Göran LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Water mist, PIV, PDA, High-pressure nozzles, Spray, Measurements
- in
- Fire Safety Journal
- volume
- 44
- issue
- 8
- pages
- 1030 - 1045
- publisher
- Elsevier
- external identifiers
-
- wos:000271379300005
- scopus:70349764317
- ISSN
- 0379-7112
- DOI
- 10.1016/j.firesaf.2009.07.003
- language
- English
- LU publication?
- yes
- id
- 3f00a245-4fec-4991-be24-ccb759c241a2 (old id 1494746)
- date added to LUP
- 2016-04-01 14:17:49
- date last changed
- 2023-09-03 12:16:51
@article{3f00a245-4fec-4991-be24-ccb759c241a2, abstract = {{The need for reliable measurement of droplet velocities and droplet size has increased with the more widespread use of water mist systems. Two optical measuring techniques have been investigated, Particle Image Velocimetry (PIV) and phase Doppler anemometry (PDA). Measurements have been performed on two high-pressure nozzles, a hollow cone nozzle and a full cone nozzle. Both methods performed well close to the nozzle and further away from the nozzle. In the intermediate region the results obtained with PIV are biased against the larger droplets. The two methods complement each other, PIV giving the instantaneous velocity field and PDA giving both the droplet velocity and droplet size at a point. The measurement indicates that higher throw length can be archived with a full cone nozzle compared to the hollow cone nozzle, if both nozzles have the same cone angle and flow rate.}}, author = {{Husted, Bjarne and Petersson, Per and Lund, Ivar and Holmstedt, Göran}}, issn = {{0379-7112}}, keywords = {{Water mist; PIV; PDA; High-pressure nozzles; Spray; Measurements}}, language = {{eng}}, number = {{8}}, pages = {{1030--1045}}, publisher = {{Elsevier}}, series = {{Fire Safety Journal}}, title = {{Comparison of PIV and PDA droplet velocity measurement techniques on two high-pressure water mist nozzles}}, url = {{http://dx.doi.org/10.1016/j.firesaf.2009.07.003}}, doi = {{10.1016/j.firesaf.2009.07.003}}, volume = {{44}}, year = {{2009}}, }