Advanced Search
XIA Bizhu, CUI Changwen, LI Qiang. Computational fluid dynamics simulation of splat formation process in plasma spraying[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2012, (2): 85-89.
Citation: XIA Bizhu, CUI Changwen, LI Qiang. Computational fluid dynamics simulation of splat formation process in plasma spraying[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2012, (2): 85-89.

Computational fluid dynamics simulation of splat formation process in plasma spraying

More Information
  • Received Date: July 03, 2011
  • A 3D computational model of the splat formation process was established to simulate the flow,heat transfer and solidification of a Ni droplet impacting on the surface of mild steel substrate with the computational fluid dynamics(CFD) software Fluent.The governing equations were discretized according to typical finite volume method(FVM).A volume of fluid(VOF) tracking algorithm was used to track the droplet free surface.Meanwhile,the simulated results were visualized.The results indicated that the maximum pressure was found at the impact point at the beginning of impact.The pressure distribution inside the deformed droplet during the spreading which came from the impacting was in the shape of a mushroom cloud,and the impact pressure decreased from the impact point to the top side of the droplet.The fluid spreaded radially outward during flattening which was accompanied by impact,consequently two symmetrical vortices appeared in the velocity vector field.Correspondingly,the temperature distribution in the deformed droplet exhibits'camel-hump'shape associated with the combined interaction of the substrate conductivity and convective heat transfer of the melt droplet.The occurrence time of the maximum spreading velocity raised from the impacting delay of 0.03 μs compared with that of the maximum impact pressure.
  • Related Articles

    [1]CAO Runping, HAN Yongquan, LIU Xiaohu, HONG Haitao, HAN Jiao. Effect of rare earth Ce on arc and droplet transfer behavior[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2025, 46(1): 95-102. DOI: 10.12073/j.hjxb.20231109001
    [2]HU Qingsong, YAN Zhaoyang, ZHANG Pengtian, CHEN Shujun. Arc behavior and droplet transfer in self-adaptive shunt alternating arc WAAM[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2024, 45(2): 41-46. DOI: 10.12073/j.hjxb.20230309003
    [3]LI Dayong, WANG Ping, ZHANG Guangjun. Comparative study on arc shape and droplet transfer under different shielding gas compositions of Ar/He/CO2 in pulsed GMAW[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(7): 55-59. DOI: 10.12073/j.hjxb.2018390175
    [4]XU Wanghui, LIN Sanbao, YANG Chunli, FAN Chenglei. Study on droplet transfer of swing arc narrow gap GMAW[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(2): 109-114.
    [5]ZHANG Xiaofeng, LI Huan, YANG Lijun, GAO Ying. Effect of laser power on arc behavior and metal transfer in laser-twin-wire pulsed MIG hybrid welding process[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2014, 35(11): 23-26,62.
    [6]HE Longbiao, LI Luming, WU Minsheng. Propagating feature of arc ultrasonic and its effect on bond area[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (8): 5-8.
    [7]HU Lianhai, HUANG Jian, ZHUANG Kai, ZHAO Fucheng, WU Yixiong. Influence of distance between laser and MIG arc on drop transfer process of CO2 laser-MIG hybrid welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (2): 49-52.
    [8]SHI Yu, HUANG Jiankang, NIE Jing, FAN Ding. Correlation of arc acoustic signals and droplet transfer in aluminum pulsed MIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (3): 29-32.
    [9]LIU Gang, FENG Yun, LI Jun-yue, FAN Rong-huan. Arc spectrum signals of droplet spray transfer in MIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2004, (1): 40-44.
    [10]YANG Yun qiang, ZHANG Xiao qi, LI Jun yue, LI Heng. Spectral information from different arc spectral window and its droplet transfer[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2003, (2): 11-15.
  • Cited by

    Periodical cited type(3)

    1. 高成龙,李宪爽,徐祥久. 钛与钢异种材料焊接技术的研究进展. 电站辅机. 2024(01): 23-29 .
    2. 刘自刚,徐睦忠,谭超,傅如斌,代锋先. 钛/钢异种金属熔化焊研究现状与展望. 材料导报. 2024(S2): 358-361 .
    3. 王俊恒,李锡伟,唐兴全,向强,蒋雪梅. TA2阵列式密集焊缝的TIG自动焊技术. 压力容器. 2022(02): 83-88 .

    Other cited types(2)

Catalog

    Article views (178) PDF downloads (81) Cited by(5)

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return