Modeling of hydrodynamic cavitation reactors: a unified approach

Moholkar, V.S. and Pandit, A.B. (2001) Modeling of hydrodynamic cavitation reactors: a unified approach. Chemical Engineering Science, 56 (21-22). pp. 6295-6302. ISSN 0009-2509

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Abstract:	An attempt has been made to present a unified theoretical model for the cavitating flow in a hydrodynamic cavitation reactor using the nonlinear continuum mixture model for two-phase flow as the basis. This model has been used to describe the radial motion of bubble in the cavitating flow in two geometries in hydrodynamic cavitation reactors, viz., a venturi tube and an orifice plate. Simulations of the bubble dynamics in a venturi flow demonstrate the stable oscillatory radial bubble motion due to a linear pressure gradient. Due to an additional pressure gradient due to turbulent velocity fluctuations the radial bubble motion in case of an orifice flow is a combination of both stable and oscillatory type. The results of numerical simulations have been explained on the basis of analogy between hydrodynamic cavitation and acoustic cavitation.
Item Type:	Article
Copyright:	© 2001 Elsevier
Research Group:	Engineering of Fibrous Smart Materials (EFSM)
Link to this item:	http://purl.utwente.nl/publications/74419
Official URL:	http://dx.doi.org/10.1016/S0009-2509(01)00253-6
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