@article{Mohamad Rasidi Pairan_Sharul Azmir Osman_Ahmad Nabil Md Nasir_Nur Hazirah Noh@Seth_Mohd Hizwan Mohd Hisham_Adjah Naqkiah Mazlan_Hanifah Jambari_Muhamad Afzamiman Aripin_2022, title={The Blockage Ratio Effect to The Spray Performances}, volume={95}, url={https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/632}, DOI={10.37934/arfmts.95.1.99109}, abstractNote={<p>Nozzle sprays are used in wide range of application. The used of nozzle application is depend on the spray characteristics, by which to suit the particular application. This project studies the effect of the air blockage ratio to the spray characteristics. This research conducted into two part which are experimental and simulation section. The experimental was conducted by using particle image velocimetry (PIV) method, and ANSYS software was used as tools for simulation section. There are two nozzles were tested at 1 bar pressure of water and air. Nozzle A (with blockage ratio 0.316) and nozzle B (blockage ratio 1.000). Both of the sprays performances generated by the nozzles was examined at 9 cm vertical line from 8 cm of the nozzle orifice. The validation result provided in the detailed analysis shows that the trend of graph velocity versus distance gives the good agreement within simulation and experiment. From result, nozzle A generated a wider spray angle and higher water droplet velocity which are 31.41 degree and 37.317 m/s compared to nozzle B which has produced 27.13 degree of spray penetration angle and 16.49 m/s water droplet velocity. As a conclusion, blockage ratio has affected the spray system by increasing the velocity of air inside the spray system. This is happened at a condition of 1 bar air pressure.</p>}, number={1}, journal={Journal of Advanced Research in Fluid Mechanics and Thermal Sciences}, author={Mohamad Rasidi Pairan and Sharul Azmir Osman and Ahmad Nabil Md Nasir and Nur Hazirah Noh@Seth and Mohd Hizwan Mohd Hisham and Adjah Naqkiah Mazlan and Hanifah Jambari and Muhamad Afzamiman Aripin}, year={2022}, month={May}, pages={99–109} }