On the Manifestation and nature of macroinstabilities in stirred vessels

AIChE Journal

Volumn 57, Issue 11, 2011, Pages 2941-2954

  Doulgerakis, Zacharias ^a   Yianneskis, Michael ^a   Ducci, Andrea ^b  

^a KING'S COLLEGE LONDON   (United Kingdom)

^b UNIVERSITY COLLEGE LONDON   (United Kingdom)

Author keywords

Macroinstability; Mixing; Pitched blade impeller; Stirred vessels

Indexed keywords

DOMINANT FREQUENCY; FLOW VARIATIONS; HORIZONTAL PLANES; MACRO INSTABILITIES; PARTICLE IMAGE VELOCIMETRIES; PITCHED BLADE IMPELLER; PITCHED BLADE TURBINE; PROPER ORTHOGONAL DECOMPOSITIONS; ROTATIONAL SPEED; RUSHTON IMPELLERS; STIRRED VESSELS; TRAILING VORTEX; TURBINE BLADE;

FAST FOURIER TRANSFORMS; FLOW STRUCTURE; MIXING; PRINCIPAL COMPONENT ANALYSIS; TURBINES; TURBOMACHINE BLADES; VELOCITY MEASUREMENT; VORTEX FLOW;

IMPELLERS;

EID: 80053906118     PISSN: 00011541     EISSN: 15475905     Source Type: Journal    
DOI: 10.1002/aic.12519     Document Type: Article

References (32)

1. Tatterson GB. Scale-up and design of industrial mixing processes. Mc Graw-Hill Inc., New York. 1994.
2. Assirelli M, Bujalski W, Eaglesham A, Nienow AW. Study of micromixing in a stirred tank using a Rushton turbine: Comparison of feed positions and other mixing devices. Chem Eng Res Des. 2002; 80: 855-863.
3. Ducci A, Yianneskis M. Direct determination of energy dissipation in stirred vessels with two-point lda. AIChE J. 2005; 51: 2133-2148.
4. Ducci A, Yianneskis M. Vortex identification methodology for feed insertion guidance in fluid mixing processes. Chem Eng Res Des. 2007; 85: 543-550.
5. Ducci A, Yianneskis M. Vortex tracking and mixing enhancement in stirred processes. AIChE J. 2007; 53: 305-315.
6. Larsson G, Tornkvist M, StahlWernersson E, Tragardh K, Noorman H, Enfos S. Substrate gradients in bioreactors: origin and consequences. Bioprocess Eng. 1996; 14: 281-289.
7. Winardi S, Nagase Y. Unstable phenomenon of flow in a mixing vessel with a marine propeller. J Chem Eng Jpn. 1991; 24: 243-249.
8. Bruha O, Fort I, Smolka P. Large scale unsteady phenomenon in a mixing vessel. Acta Polytech Czech Tech Univ Prague. 1993; 27: 33.
9. Montes J, Boison H, Fort I, Jahoda M. Velocity field macro-instabilities in an axially agitated mixing vessel. Chem Eng J. 1997; 67: 139-145.
10. Hasal P, Montes JL, Boisson HC, Fort I. Macro-instabilities of velocity field in stirred vessels: Detection and analysis. Chem Eng Sci. 2000; 55: 391-401.
11. Roussinova VT, Grgic B, Kresta S. Study of macro-instabilities in stirred vessel tanks using a velocity decomposition technique. Chem Eng Res Des. 2000; 78: 1040-1052.
12. Roussinova V, Kresta S, Weetman R. Low frequency macroinstabilities in a stirred tank: scale up and prediction based on large eddy simulations. Chem Eng Sci. 2003; 58: 2297-2311.
13. Roussinova V, Kresta S, Weetman R. Resonant geometries for circulation pattern macroinstabilities in a stirred tank. AIChE J. 2004; 50: 2986-3005.
14. Nikiforaki L, Montante G, Lee KC, Yianneskis M. On the origin, frequency and magnitude of macro-instabilities of the flows in stirred vessels. Chem Eng Sci. 2003; 58: 2937-2949.
15. Galletti C, Paglianti A, Lee KC, Yianneskis M. Reynolds number and impeller diameter effects on instabilities in stirred vessels. AIChE J. 2004; 50: 2050-2063.
16. Galletti C, Paglianti A, Yianneskis M. Observations on the significance of instabilities, turbulence and intermittent motions on fluid mixing processes in stirred reactors. Chem Eng Sci. 2004; 60: 2317-2331.
17. Hasal P, Jahoda M, Fort I. Macro-instability: a chaotic flow component in stirred tanks. Phil Trans of the Royal Society A-Mathematical Phys Eng Sci. 2008; 366: 409-418.
18. Roy S, Acharya S, Cloeter MD. Flow structure and the effect of macro-instabilities in a pitched blade stirred tank. Chem Eng Sci. 2010; 65: 3009-3024.
19. Ducci A, Doulgerakis Z, Yianneskis M. Decomposition of flow structures in stirred reactors and implications for mixing enhancement. Ind Eng Chem Res. 2008; 47: 3664-3676.
20. Doulgerakis Z, Yianneskis M, Ducci A. On the interaction of trailing and macro-instability vortices in a stirred vessel-enhanced energy levels and improved mixing potential. Chem Eng Res Des. 2009; 87: 412-420.
21. Sirovich L. Turbulence and the dynamics of coherent sturctures. Quart Appl Math. 1987; 45: 561-590.
22. Berkooz G, Holmes P, Lumley J. The proper orthogonal decomposition in the analysis of turbulent flows. Ann Rev Fluid Mech. 1993; 25: 539-575.
23. van Oudheusden B, Scarano F, van Hinsberg N, Watt D. Phase-resolved characterization of vortex shedding in the near wake of a square-section cylinder at incidence. Exp Fluids. 2005; 39: 86-98.
24. Perrin R, Cid E, Cazin S, Sevrain A, Braza M, Moradei F, Harran G. Phase-averaged measurements of the turbulence properties in the near wake of a circular cylinder at high Reynolds number by 2c-piv and 3c-piv. Exp Fluids. 2007; 42: 93-109.
25. Tabib MV, Joshi JB. Analysis of dominant flow structures and their flow dynamics in chemical process equipment using snapshot proper orthogonal decomposition technique. Chem Eng Sci. 2008; 63: 3695-3715.
26. Moreau J, Line A. Proper orthogonal decomposition for the study of hydrodynamics in a mixing tank. AIChE J. 2006; 52: 2651-2655.
27. Bruha O, Fort I, Smolka P, Jahoda M. Experimental study of turbulent macroinstabilities in an agitated system with axial high-speed impeller and with radial baffles. Collect Czech Chem Commun. 1996; 61: 856-867.
28. Myers KJ, Ward RW, Bakker A. A digital particle image velocimetry investigation of flow field instabilities of axial-flow impellers. Trans ASME, J Fluid Eng. 1997; 119: 623-632.
29. Doulgerakis Z. Large scale vortex and strain dynamics in mixing vessels and implications for macro-mixing enhancement. Ph.D. thesis, King's College London, University of London, United Kingdom. 2010.
30. Schäfer M, Yianneskis M, Wächter, Durst F. Trailing vortices around a 45° pitched blade impeller. AIChE J. 1998; 44: 1233-1246.
31. Paglianti A, Montante G, Magelli F. Novel experiments and mechanistic model for macroinstabilities in stirred tanks. AIChE J. 2006; 52: 426-437.
32. Jaworski Z, Dyster KN, Nienow AW. The effect of size, location and pumping direction of pitched blade turbine impellers on flow patterns: LDA measurements and CFD predictions. Chem Eng Res Des. 2001; 79: 887-894.