Experimental Investigation on the Spray Behaviour of Bluff Body Air-Assisted Atomizer Designs
Abstract
:1. Introduction
2. Materials and Methods
3. Results
3.1. Spray Structure
3.2. Mean Drop Size (SMD)
3.3. Drop Size Distribution (DSD) and Excentricity Plots
3.4. Patternation Technique
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
Appendix A
References
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Atomizer Type (mm) | Area-Throat Area Ratio (A/A *) | Mach Number (Mdesign) | Pressure * (P0 Design) | Operational Mach Number Range (M) | Operational Pressure * Range (P0) |
---|---|---|---|---|---|
2.0 | 3.0 | 2.63 | 21.1 | 1.25−1.87 | 2.60−6.45 |
3.0 | 2.0 | 2.20 | 10.6 | 1.28−1.86 | 2.70−6.35 |
4.0 | 1.5 | 1.85 | 6.24 | 1.13−1.59 | 2.32−4.83 |
Atomizer Type (d) | Liquid Flow Rate * | Airflow Rate * | ALR |
---|---|---|---|
2.0 mm | 100 | 10 | 0.1 |
100 | 15 | 0.15 | |
100 | 20 | 0.2 | |
200 | 10 | 0.05 | |
200 | 15 | 0.075 | |
200 | 20 | 0.1 | |
300 | 10 | 0.033 | |
300 | 15 | 0.05 | |
300 | 20 | 0.066 | |
3.0 mm | 100 | 20 | 0.2 |
100 | 30 | 0.3 | |
100 | 40 | 0.4 | |
200 | 20 | 0.1 | |
200 | 30 | 0.15 | |
200 | 40 | 0.2 | |
300 | 20 | 0.066 | |
300 | 30 | 0.1 | |
300 | 40 | 0.133 | |
4.0 mm | 100 | 30 | 0.3 |
100 | 40 | 0.4 | |
100 | 50 | 0.5 | |
200 | 30 | 0.15 | |
200 | 40 | 0.2 | |
200 | 50 | 0.25 | |
300 | 30 | 0.1 | |
300 | 40 | 0.133 | |
300 | 50 | 0.166 |
Parameters | Value |
---|---|
Normalization radius | 75 pixels |
Reduce pixel noise | weak |
Binarization threshold | 50% |
Minimum slope | 3% |
Minimum shadow area | 3 pixels |
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Sikka, R.; Vågsæther, K.; Bjerketvedt, D.; Lundberg, J. Experimental Investigation on the Spray Behaviour of Bluff Body Air-Assisted Atomizer Designs. Fluids 2022, 7, 301. https://doi.org/10.3390/fluids7090301
Sikka R, Vågsæther K, Bjerketvedt D, Lundberg J. Experimental Investigation on the Spray Behaviour of Bluff Body Air-Assisted Atomizer Designs. Fluids. 2022; 7(9):301. https://doi.org/10.3390/fluids7090301
Chicago/Turabian StyleSikka, Raghav, Knut Vågsæther, Dag Bjerketvedt, and Joachim Lundberg. 2022. "Experimental Investigation on the Spray Behaviour of Bluff Body Air-Assisted Atomizer Designs" Fluids 7, no. 9: 301. https://doi.org/10.3390/fluids7090301