01451nam a22001577a 4500 621 Hassan, Ali 122522 CFD in Drinking Water Treatment Ali Hassan Islamabad : SMME- NUST; 2022. 57p. Soft Copy 30cm An upgraded model was developed by employing a combination of Eulerian-Eulerian two-phase approach and user defined function (UDF) to solve the water-ozone flow and interaction in an ozone contactor using computational fluid dynamics (CFD). Moreover, geometric configuration of the contactor was optimized to improve the performance of the contactor. As indicators Residence Time Distribution (RTD) and Dissolved Ozone Concentration (C) were used for single phase and two-phase CFD models. Validation of experimental data already available in the literature was done for RTD and then its impact on C was studied using different contactor configurations. From simulations it was evident that optimizing structural configurations can greatly reduce the size of recirculation zones, dead zones and short-circuiting. As a result, an increase of 71.6% was observed in dissolved ozone concentration in the geometry containing double-sided horizontal baffles. MS Mechanical Engineering 119495 Supervisor : Dr. Niaz Bahadur Khan 122293 http://10.250.8.41:8080/xmlui/handle/123456789/30593 ddc THE 609003 609003 0 0 0 0 SMME SMME EB 2024-04-29 0 621 SMME-TH-759 2024-04-29 2024-04-29 THE