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Effect of Inlet Flow Characteristics on the Volume Fraction Distribution within a Severe Service Trim and the Valve Flow Coefficient

Oliveira, Antonio C., Charlton, Matthew and Mishra, Rakesh (2016) Effect of Inlet Flow Characteristics on the Volume Fraction Distribution within a Severe Service Trim and the Valve Flow Coefficient. In: 43rd National Conference on Fluid Mechanics and Fluid Power, 15-17 December 2016, Allahabad, India. (Submitted)

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It is well established that inlet flow characteristics may affect the performance of fluid handling systems considerably. This work focuses on the local flow analysis of a severe service control valve with a continuous resistance trim (CRT) operating under multiphase flow conditions and the effect of the inlet flow characteristics on the dispersed phase distribution within the trim and the valve flow coefficient Cv. Three dimensional CFD models, using both the mixture model and turbulence model k-omega SST, were used to simulate the flow within valve body and trim assembly under multiphase conditions. It is shown in this work that the dispersed phase distribution in the trim is strongly affected by the valve inlet conditions and thus affecting its performance. However, the valve flow coefficient is barely affected by the inlet flow conditions.

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Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TJ Mechanical engineering and machinery
Schools: School of Computing and Engineering
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References: 1. Michael Jelinek, A.L., Irene Borde, The influence of the evaporator inlet conditions on the performance of a diffusion absorption refrigeration cycle. Applied Thermal Engineering, 2016. 2. W WU, Y.W., Y W Han, Impeller entrance pre whirl characteristics research. Conf. Series: Materials Science and Engineering, 2016. 3. Liu Yinshui, N.S., Zhu Yuquan, He Xiaofeng, Li Zhuangyun, Experimental Study of Effects of Operating Conditions on the flow Characteristics of Water Hydraulic Throttle. Chinese Journal of Mechanicl Engineering, 2004. 4. Gino Boccardia, R.B., Gian Piero Celataa, Barbara Mazzarottab, Two-phase flowthrough pressure safety valves. Experimental investigation and model prediction. Chemical Engineering Science, 2005. 5. Chasik Park, H.C., Yongtaek Lee, Yongchan Kim, Mass flow characteristics and empirical modeling of R22 and R410A flowing through electronic expansion valves. International Journal of Refrigeration, 2007. 6. Jian Liang, X.L., Yinshui Liu, Xiwen Li, Tielin Shi, A numerical investigation in effects of inlet pressure fluctuations on the flow and cavitation characteristics inside water hydraulic poppet valves. International Journal of Heat and Mass Transfer, 2016. 7. Asim, T., Mishra, R., Charlton, M., Oliveira, C., Capacity Testing and Local Flow Analysis of Geometrically Complex Trims Installed within a Comercial Control Valve. International Conference on Wakes Jets and Separeted Flows 2015. 8. Fluent technical manual. 2016.
Depositing User: Antonio Oliveira
Date Deposited: 25 Oct 2016 13:39
Last Modified: 28 Aug 2021 16:42


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