Evaluation of the Variability of Micro and Macro Spray Parameters as a Function of Sampling Time Using a Laser Doppler Analyzer
Determination of nozzle quality ratings based on macroscopic and microscopic parameters generally requires the use of separate measurement methods in research. The guiding idea determining the direction of the conducted research was to use a 2D (two-dimensional) laser analyzer LDA/PDA (laser Doppler...
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MDPI AG
2025-06-01
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| Online Access: | https://www.mdpi.com/2076-3417/15/13/6993 |
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| author | Dariusz Lodwik Mariusz Koprowski |
| author_facet | Dariusz Lodwik Mariusz Koprowski |
| author_sort | Dariusz Lodwik |
| collection | DOAJ |
| description | Determination of nozzle quality ratings based on macroscopic and microscopic parameters generally requires the use of separate measurement methods in research. The guiding idea determining the direction of the conducted research was to use a 2D (two-dimensional) laser analyzer LDA/PDA (laser Doppler anemometry/phase Doppler anemometry) to evaluate the values of selected micro and macro parameters (microstructure characterization with simultaneous evaluation of lateral distribution) of the spray. The research was conducted for variable measurement times. The main issue of the research was an attempt to reduce the measurement cycle time, important in the case of point tests performed with an analyzer. The scope of the conducted research covered three areas. In the first stage of the research, the variability of the coefficients characterizing the spray spectrum as a function of variable measurement time was analyzed. In the next, the value of the coefficient of transverse volume distribution (for a single sprayer) was determined. The results were determined on the basis of the volume diameters obtained from measuring the droplets with a 2D LDA/PDA analyzer. In the third stage, an attempt was made to combine the volume distribution results obtained for single nozzles on the boom. The results obtained were compared with those determined using a groove table. Both measurement methods used a different representativeness in volume measurement (sampling method and significantly different amounts of liquid analyzed); nevertheless, the results of the transverse volume distribution were found to be consistent. |
| format | Article |
| id | doaj-art-5ddb6d3f9a5b41a0b8585cc504d55516 |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-5ddb6d3f9a5b41a0b8585cc504d555162025-08-20T03:16:41ZengMDPI AGApplied Sciences2076-34172025-06-011513699310.3390/app15136993Evaluation of the Variability of Micro and Macro Spray Parameters as a Function of Sampling Time Using a Laser Doppler AnalyzerDariusz Lodwik0Mariusz Koprowski1Faculty of Civil Engineering, Mechanics and Petrochemistry, Institute of Mechanical Engineering, Warsaw University of Technology, Lukasiewicza 17, 09-400 Plock, PolandFaculty of Civil Engineering, Mechanics and Petrochemistry, Institute of Mechanical Engineering, Warsaw University of Technology, Lukasiewicza 17, 09-400 Plock, PolandDetermination of nozzle quality ratings based on macroscopic and microscopic parameters generally requires the use of separate measurement methods in research. The guiding idea determining the direction of the conducted research was to use a 2D (two-dimensional) laser analyzer LDA/PDA (laser Doppler anemometry/phase Doppler anemometry) to evaluate the values of selected micro and macro parameters (microstructure characterization with simultaneous evaluation of lateral distribution) of the spray. The research was conducted for variable measurement times. The main issue of the research was an attempt to reduce the measurement cycle time, important in the case of point tests performed with an analyzer. The scope of the conducted research covered three areas. In the first stage of the research, the variability of the coefficients characterizing the spray spectrum as a function of variable measurement time was analyzed. In the next, the value of the coefficient of transverse volume distribution (for a single sprayer) was determined. The results were determined on the basis of the volume diameters obtained from measuring the droplets with a 2D LDA/PDA analyzer. In the third stage, an attempt was made to combine the volume distribution results obtained for single nozzles on the boom. The results obtained were compared with those determined using a groove table. Both measurement methods used a different representativeness in volume measurement (sampling method and significantly different amounts of liquid analyzed); nevertheless, the results of the transverse volume distribution were found to be consistent.https://www.mdpi.com/2076-3417/15/13/6993sprayerdroplet spectrumspray characteristicsspray qualitylaser anemometrymeasurement time |
| spellingShingle | Dariusz Lodwik Mariusz Koprowski Evaluation of the Variability of Micro and Macro Spray Parameters as a Function of Sampling Time Using a Laser Doppler Analyzer Applied Sciences sprayer droplet spectrum spray characteristics spray quality laser anemometry measurement time |
| title | Evaluation of the Variability of Micro and Macro Spray Parameters as a Function of Sampling Time Using a Laser Doppler Analyzer |
| title_full | Evaluation of the Variability of Micro and Macro Spray Parameters as a Function of Sampling Time Using a Laser Doppler Analyzer |
| title_fullStr | Evaluation of the Variability of Micro and Macro Spray Parameters as a Function of Sampling Time Using a Laser Doppler Analyzer |
| title_full_unstemmed | Evaluation of the Variability of Micro and Macro Spray Parameters as a Function of Sampling Time Using a Laser Doppler Analyzer |
| title_short | Evaluation of the Variability of Micro and Macro Spray Parameters as a Function of Sampling Time Using a Laser Doppler Analyzer |
| title_sort | evaluation of the variability of micro and macro spray parameters as a function of sampling time using a laser doppler analyzer |
| topic | sprayer droplet spectrum spray characteristics spray quality laser anemometry measurement time |
| url | https://www.mdpi.com/2076-3417/15/13/6993 |
| work_keys_str_mv | AT dariuszlodwik evaluationofthevariabilityofmicroandmacrosprayparametersasafunctionofsamplingtimeusingalaserdoppleranalyzer AT mariuszkoprowski evaluationofthevariabilityofmicroandmacrosprayparametersasafunctionofsamplingtimeusingalaserdoppleranalyzer |