120. Quality analysis of T-tube with solid-liquid two‑phase abrasive flow polished

Junye Li1, Lili Wei2, Xinming Zhang3, Jinglei Hu4, Ningning Su5

College of Mechanical and Electric Engineering, Changchun University of Science and Technology, Changchun 130022, China

3Corresponding author

E-mail: 1ljy@cust.edu.cn, 2916033207@qq.com, 3zxm@cust.edu.cn, 41340113539@qq.com, 51019448725@qq.com

Received 31 May 2017; received in revised form 4 June 2017; accepted 5 June 2017

DOI https://doi.org/10.21595/jme.2017.18696

 

Abstract. For the problem affected by speed and uneven grinding in abrasive flow with non‑linear pipe, the T-tube is regarded as the research object, the numerical simulation of the flow state of the abrasive flow under different inlet velocities is carried out by using the large eddy simulation (LES). The dynamic pressure, turbulent kinetic energy, turbulence intensity and wall shear force under different inlet conditions are compared and analyzed. We can see from the numerical analysis that with the increase of inlet velocity, the dynamic pressure, turbulent kinetic energy, turbulence intensity and wall shear force also increase, and the polished effect is improved. The surface roughness and surface morphology of the T-tube workpiece before and after polished of abrasive flow are measured, the surface roughness decreased from 3.633 μm to 1.201 μm. Therefore, the effectiveness of the abrasive flow polished inner channel structure is confirmed, Also the credibility of numerical analysis is verified and provides theoretical support for the development of abrasive flow polished technology.

Keywords: T-tube, abrasive flow, large eddy simulation.

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Cite this article

Li Junye, Wei Lili, Zhang Xinming, Hu Jinglei, Su Ningning Quality analysis of T‑tube with solid‑liquid two‑phase abrasive flow polished. Journal of Measurements in Engineering, Vol. 5, Issue 2, 2017, p. 77‑86.

 

Journal of Measurements in Engineering. June 2017, Volume 5, Issue 2

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