TY - JOUR AU - Khalid, Amir AU - Amirnordin, Shahrin Hisham AU - Vasuthavan, Uthayakumar AU - Hariri, Azian AU - Fawzi, Mas PY - 2020/12/14 Y2 - 2024/03/28 TI - Spray Formation in the Multi-Hole Nozzle of Twin-Fluid Atomizers JF - Journal of Advanced Research in Fluid Mechanics and Thermal Sciences JA - J. Adv. Res. Fluid Mech. Therm. Sc. VL - 53 IS - 1 SE - Articles DO - UR - https://www.akademiabaru.com/submit/index.php/arfmts/article/view/2410 SP - 75-81 AB - <p>The atomization of internal-mixing twin-fluid atomizers is highly dependent on the internal geometry of the mixing chamber. Many studies have been conducted on the air entrance geometry influencing the air-fuel mixing. This paper aims to determine the effects of a multi-circular jet (MCJ) plate on the spray formation of twin-fluid atomizers. Plates 1, 2 and 3 with different open area ratios were used in the experiments. A swirler was used for comparison. The spray images were captured at different equivalence ratios using a direct photography method. ImageJ software was used to analyse the breakup length of spray formation. Results corroborate that, as the open area ratio of an MCJ plate increases, the break-up length decreases. The opening area for primary air entrance into the mixing chamber contributes to the airfuel mixing, thereby affecting the spray performance of twin-fluid atomizers.</p> ER -