Numerical analysis of 3-D flow through LNG marine control valves for their advanced design |
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Authors: | Young Joon An Byeong Jin Kim Byeong Rog Shin |
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Affiliation: | (1) Department of Mechanical Engineering, Changwon National University, 9 Sarim-dong, Changwon, 641-773, Korea |
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Abstract: | A numerical analysis of three dimensional incompressible turbulent flows through high pressure drop control valves was carried
out by using a CFD-ACE code to develop anti-cavitation control valve used in LNG marine system. For this, numerical simulation
was performed on several models of control valve that have different orifice diameters of anti-trim and the size of valve
discharge. In this study, flow characteristics of control valves with complex flow fields including pressure drop, cavitation
effect and variation of flow coefficient as well as correlation of discharge coefficient were investigated and analyzed. Comparing
with conventional control valves, newly designed valves by using the CFD analysis showed an improved flow pattern with reduced
cavitation and an anticipated performance characteristic.
This paper was presented at the 9th Asian International Conference on Fluid Machinery (AICFM9), Jeju, Korea, October 16–19, 2007. |
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Keywords: | CFD analysis Cavitating flow Control valve Anti-cavitation trim LNG marines |
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