Improved Design of Ultrasonic Cleaning Tank Using Harmonic Response Analysis in ANSYS

A Novel Ultrasonic Cleaning Tank Developed by Harmonic Response Analysis and Computational Fluid Dynamics

“…It was only recently that the HRA applied to calculate the acoustic pressure and position where cavitation occurs in industrial UCTs with high accuracy, thus showing that the position where the highest and lowest acoustic pressure occur is where the cavitation is the most intense. Simulation results were highly coherent with the foil corrosion test [17][18][19]. When designing UCTs, it is highly necessary to correctly calculate the acoustic pressure.…”

“…Once the pressure inside the bubble is lesser than the pressure outside, the bubble will quickly collapse, causing a liquid jet with a speed of approximately 200 m/s [20] to collide with the excess particles or contaminants on the product surface, resulting in the cleaning process [20]. To explain the cavitation occurrence, most studies used acoustic pressure that occurs inside the UCT using Equation (1) [17][18][19]21].…”

“…Metals 2020, 10, 335 3 of 18 surface, resulting in the cleaning process [20]. To explain the cavitation occurrence, most studies used acoustic pressure that occurs inside the UCT using Equation (1) [17][18][19]21]. Generally, the HRA is used to find the structural response of solid materials towards loads that change according to time as in sinusoidal waves [22].…”

“…In the case which cleaning fluids flow in the UCT, when the flow rate increases, the bubble collapsing rate drops along with the cavitation [13]. The transducers' position also affects cleaning performance; if the transducers are placed in a suitable position, the cleaning performance will be high [14][15][16][17][18][19]. In order to design a UCT with high cleaning performance, computer simulation was applied to find the cause of why the UCT in this industrial factory was not cleaning properly.…”

“…In order to design a UCT with high cleaning performance, computer simulation was applied to find the cause of why the UCT in this industrial factory was not cleaning properly. Once the simulation results were analyzed, other than sourcing the cause of the problem, we were also able to apply the findings to develop a new UCT with enhanced cleaning performance compared to the conventional model [17][18][19]. From the mentioned researches, it was indicated that highly efficient cleaning comes from UCTs that were well designed and tailored to cleaning conditions suitable to what particles must be cleaned.…”