Understanding the spatial interaction of ultrasounds based on three-dimensional dual-frequency ultrasonic field numerical simulation  

作　　者：Zhao-yang Yin Qi-chi Le Yan-chao Jiang Da-zhi Zhao Qi-yu Liao Qi Zou 

机构地区：[1]Key Lab of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University,Shenyang 110819,China [2]School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China

出　　处：《China Foundry》2024年第1期29-43,共15页中国铸造（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.51974082 and 52274377);the Fundamental Research Funds for the Central Universities(Grant No.N2209001);the Programme of Introducing Talents of Discipline Innovation to Universities 2.0(the 111 Project 2.0 of China,Grant No.BP0719037)。

摘　　要：A transient 3D model was established to investigate the effect of spatial interaction of ultrasounds on the dual-frequency ultrasonic field in magnesium alloy melt.The effects of insertion depth and tip shape of the ultrasonic rods,input pressures and their ratio on the acoustic field distribution were discussed in detail.Additionally,the spacing,angle,and insertion depth of two ultrasonic rods significantly affect the interaction between distinct ultrasounds.As a result,various acoustic pressure distributions and cavitation regions are obtained.The spherical rods mitigate the longitudinal and transversal attenuation of acoustic pressure and expand the cavitation volume by 53.7%and 31.7%,respectively,compared to the plate and conical rods.Increasing the input pressure will enlarge the cavitation region but has no effect on the acoustic pressure distribution pattern.The acoustic pressure ratio significantly affects the pressure distribution and the cavitation region,and the best cavitation effect is obtained at the ratio of 2:1(P15:P20).

关 键 词：dual-frequency ultrasonic numerical model acoustic pressure spatial interaction magnesium alloy 

分 类 号：TG146.22[一般工业技术—材料科学与工程]