Experimental and numerical studies on the cavitation in an advanced rotational hydrodynamic cavitation reactor for water treatment

Investigation into cavitational intensity and COD reduction performance of the pinned disc reactor with various rotor-stator arrangements

“…Several different cavitator designs have been successfully employed for advanced oxidation of dissolved organic compounds (a review provided in [1] , [6] , [7] ) and disinfection (a review provided in [2] , [8] ) of WW. These include orifice plates [9] , [10] , venturi tubes [10] , [11] , vortex cavitation [12] , and rotating devices [13] , [14] , [15] , [16] , [17] , [18] , [19] , [20] , [21] , [22] , [23] , [24] that will be hereinafter referred to as rotational generators of hydrodynamic cavitation (RGHC).…”

Multi-objective optimization of the cavitation generation unit structure of an advanced rotational hydrodynamic cavitation reactor

“…As a result, vortex cavitation and sheet cavitation regions are induced. The detailed description on the computational domain, solver setup, boundary conditions, mesh, validation, and flow mechanism can be found in the studies by Sun, et al [43] and Sun, et al [44] , and is not repeated here.…”

“…In general, the performance of various HCRs relies on their geometrical structures [34] . Even though ARHCRs have been studied, developed, and commercialized for the last ten years [35] , [36] , only few studies focused on the experimental flow visualization [19] , [24] , [26] , [30] , [37] , [38] , [39] , [40] , [41] , external characteristics [26] , [37] , [38] , [40] , and computational fluid dynamics (CFD) [42] , [43] of various ARHCRs. Moreover, the effect of structure on their performance is rarely focused on, let alone structural optimization.…”

A 3D Smoothed Particle Hydrodynamics Study of a Non-Symmetrical Rayleigh Collapse for an Empty Cavity

“…The collapse of bubbles, or cavities, has been studied for more than a hundred years [1][2][3][4][5][6][7][8][9][10][11] since the first study by Besant in 1859 [12]. The collapse is the second phase of the cavitation phenomenon, and generally occurs after the growth phase of the so-called cavitation nuclei present in a liquid medium as water [13].…”