New Type Homogenizing Valve: Flow Patterns Simulation

Abstract:

Homogenization is important in modern chemical, pharmaceutical and food industry. The design and optimization for homogenizing units are usually difficult because of lacking enough information about the flow field within the valve. Numerical investigations on flow and pressure fields within a kind of new type homogenizing valve have been conducted using computational fluid dynamics (CFD) software. The study indicates that the new type homogenizing valve can be modeled by CFD and detailed information on high speed flow is available. During the process on numerical simulation, finite-volume technique and RNG k-ε turbulence model are present. Through numerical results, mechanical stresses, high shear rates in small valve region and those phenomena that could not be easily determined experimentally can be reached.

• Periodical: Applied Mechanics and Materials (Volume 364)
• Pages: 81-86
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.364.81
• Online since: August 2013
• Authors: Bin Liu, Xue Wu, Jing Wang, Tao Feng
• Keywords: Computational Fluid Dynamics (CFD), Homogenization, Homogenizing Valve, Numerical Simulation

References

[1] Keinig, A.R., Middleberg, A.P.J. the correlation of cell disruption with homogeniser valve pressure gradient determined by computational fluid dynamics. Chemical Engineering Science, 1996, 51(23), 5103-5110.

DOI: 10.1016/s0009-2509(96)00354-5

[2] Kleinig, A.R., Ide, B. H., middelberg, A.P.J. High-pressure homogenizer valve mechanics . In the 1996 IChemE Res. Event, 2nd Euro. Conf. for Young Res. in Chem. Eng., Vol. 1: 109-111.

[3] Stevenson, M.J., Chen, X.D. Visualization of the flow patterns in a high-pressure homogenising valve using a CFD package. Journal of Fool Engineering. 1997, 33, 151-165.

DOI: 10.1016/s0260-8774(97)00046-0

[4] R. Lander, W. Manger. Gaulin Homogenization: A Mechanistic Study. Biotechnology progress. 2000, vol. 16, 80-85.

DOI: 10.1021/bp990135c

[5] Juliane Floury, Jerome Bellettre, Jack Legrand, Anne Desrumaux. Analysis of a new type of high pressure homogeniser [J]. A study of the flow pattern. Chemical Engineering Science, 2004, Vol. 59: 843-853.

DOI: 10.1016/j.ces.2003.11.017

[6] Liu chengmei，Liu wei，Gao yinyu，Roger ruan，Lin xiangyang，Chen gang. Analysis on Fluid Dynamic Behavior in High Velocity Jet Homogenizer. Food Science, 2004, Vol. 25(4): 58-62.

DOI: 10.13031/2013.19598

[7] kleinig, A.R., Ide, Middleberg, A.P.J. High-pressure homogenizer valve mechanics. CHEMECA'95, Proceedings of the 23rd Australian Chemical Engineering Conference, 1995, vol. 3: 50-55.

[8] Wu xue, Zhang shaoying, Liu bin. Study on the Dynamic Pressure Modeling of High-pressure Jet Homogenization. 2010 International Conference on Computing, Control & Industrial Engineering, 2010, vol. 1: 284-289.

DOI: 10.1109/ccie.2010.79

[9] Yakhot V., Orszag S.A. Renormalization group analysis of turbulence: basic theory. I. Basic Theory. Journal of Science Computer, 1986, vol. 1(1): 3-51.

DOI: 10.1007/bf01061452

[10] Keinig, A.R., Middleberg, A.P.J. Numerical and experimental study of a homogenizer impinging jet. AICHE Journal, vol. 43(4), 1100-1107.