Numerical Analysis of Dynamic Fluid Flow and Heat Transfer in Fully-penetrated GTAW Weld Pool

Abstract

Abstract: To solve the existing problems of the previous models for GTAW weld pool behaviors, the latent heat of phase-change is treated by means of the method of liquid-fraction, and the coupled interaction between the upper and bottom surface deformation equations of fully-penetrated weld pool is described by employing the completed weld pool surface depression equations. The prediction precision is further improved for the weld pool geometry, dimension and surface deformation. Based on the modified model for fully-penetrated GTAW weld pool, the dynamic variation processes of fluid flow and heat transfer as well as weld pool geometry are numerically simulated, and the transient characteristics of weld pool evolution behaviors are illustrated.

Key words: Dynamic variation, Fluid flow and heat transfer, Fully-penetrated GTAW weld pool, Numerical analysis

CLC Number:

TG444

ZHAO Ming;WU Chuansong;SUN Yongxing. Numerical Analysis of Dynamic Fluid Flow and Heat Transfer in Fully-penetrated GTAW Weld Pool[J]. , 2009, 45(9): 266-271.

[1]	LI Yadong, TAO Yourui, WANG Chongshuai, DUAN Shuyong, LI Changfeng, JI Zhaoxin. Formation Mechanism and Suppression Strategies of Satellite Droplets for Piezoelectric Jet Dispensing within Short Distance [J]. Journal of Mechanical Engineering, 2024, 60(19): 347-355.
[2]	CHEN Jiqing, TAO Hongda, LAN Fengchong, LI Weijian, JIANG Xinping. Analysis of the Influence of Low-temperature Cold Source on the Internal Temperature and Humidity Characteristics of Power Battery Packs [J]. Journal of Mechanical Engineering, 2024, 60(14): 227-237.
[3]	ZHANG Xuan, YU Yonggang, ZHANG Xinwei. Research on Transient Multiphase Flow Field Characteristics Based on Fluid-structure Interaction [J]. Journal of Mechanical Engineering, 2023, 59(16): 406-417.
[4]	WANG Xinxin, CHI Luxin, XU Huibin, FAN Ding. Numerical Analysis of Oxygen Mass Transfer in Two-TIG Arc [J]. Journal of Mechanical Engineering, 2021, 57(4): 53-62.
[5]	WANG Yongqing, BAN Ziyou, HAN Lingsheng, LIU Kuo, KONG Fanze, LIU Haibo. Influence of Structure Deformation on Leakage Characteristics in Labyrinth Seal inside the Cryogenic Internal-cooling Spindle [J]. Journal of Mechanical Engineering, 2021, 57(3): 129-136.
[6]	YU Jin, CHEN Wei, HU Jiushao, ZHOU Yang, JIANG Jinyu, CHENG Wei. Plane-tilt Tanks' Structural Analysis Based on Measured Data [J]. Journal of Mechanical Engineering, 2020, 56(16): 61-70.
[7]	YANG Long, YANG Bing, YANG Guangwu, XIAO Shoune, ZHU Tao. Overview of Fatigue Research of Spot Welded Joints [J]. Journal of Mechanical Engineering, 2020, 56(14): 26-43.
[8]	TAI Xingyu, YANG Shuhua, MA Hui, ZHANG Yong, CHU Fulei. Numerical Analysis and Experimental Investigation of Blade Tip Rubbing-induced Vibration Responses of Rotor System [J]. Journal of Mechanical Engineering, 2019, 55(19): 112-120.
[9]	WANG Guolin, QIAO Lei, ZHOU Haichao, QIAN Hao, LIU Congzhen. Influence of PCR Tire Grounding Characteristics to Noise and Rolling Resistance [J]. Journal of Mechanical Engineering, 2019, 55(16): 123-131.
[10]	FENG Guobao, CUI Wanzhao, HU Tiancun, CHEN Bangdao, WANG Ning. Research on Secondary Electron Emission and Multipactor Discharge via Surface Micro-trapped Structure [J]. Journal of Mechanical Engineering, 2018, 54(9): 121-127.
[11]	SHI Kun, ZHANG Guangpeng, WEI Fengtao, YUAN Yuan. Equivalent Characteristic Parameters of Mechanical Joints [J]. Journal of Mechanical Engineering, 2018, 54(19): 144-149.
[12]	QUAN Hui, FU Baiheng, LI Rennian, SU Qingmiao, HAN Wei,LI Jin. Energy Conversion Mechanism on Impeller Domain of the Screw Centrifugal Pump Based on Vane Airfoil Load [J]. Journal of Mechanical Engineering, 2016, 52(16): 169-175.
[13]	DING Xueping, LI Huan. Numerical Analysis for Effect of Welding Current on Arc Plasma in Double-Wire GMAW [J]. Journal of Mechanical Engineering, 2016, 52(16): 71-76.
[14]	ZHOU Haichao, LIANG Chen, YANG Jian, WANG Guolin, XUE Kaixin. Bionic Method for Improving Tire Anti-hydroplaning Performance [J]. Journal of Mechanical Engineering, 2015, 51(8): 125-130.
[15]	Lü Xiangkui, YANG Wenjian, XU Guoliang, HUANG Xiaoming. The Influence of Characteristic of Rough Surface on Gas Sealing Performance in Seal Structure [J]. Journal of Mechanical Engineering, 2015, 51(23): 110-115.

Numerical Analysis of Dynamic Fluid Flow and Heat Transfer in Fully-penetrated GTAW Weld Pool

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments