Tracking experiment of MIG on V shape welding groove is made with this method, and the experiment result validates the validity of this method.

利用该方法对V形坡口进行了金属熔化极气体保护电弧焊的跟踪试验，试验结果验证了所用方法的有效性。

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The effects of the tip shape of V-groove on drag reduction and flow field characteristics by numerical analysis;

近年来对于水下条纹沟槽表面减阻的研究多集中在试验方面，理论分析和数值计算进行的却不多。

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