CFD Simulation of Annular Centrifugal Extractors

Table 2

Some details of CFD simulations in previous work.

Serial number	Authors	Number of grids	Method of discretization^*, ^**			Multiphase model used
			Momentum	Pressure-velocity coupling	Pressure equation
1	Zhu and Vigil, [153]	30 (radial) × 300 (Axial)				ASM (Fluent 5.0)
2	Wang et al., [170]					(Fluent 6.0)
3	Vedantam et al., [5]	3D 70000 Hexahedral	First order upwind	PISO	PRESTO	VOF (Fluent 6.1)
4	Wardle et al., [133]	3D 588484 Tetrahedral	First order upwind	SIMPLE	Standard	(Fluent 6.1)
5	Vedantam et al., [4]	2D 20000	First order upwind	SIMPLE	Pressure staggering option (PRESTO)	(Fluent 6.1.2)
6	Padial-Collins et al., [166]					(EE) (CartaBlanca)
7	Deshmukh et al., [26]	2D 20000	QUICK upwind	PISO	Pressure staggering option (PRESTO)	(Fluent 4.5, 6.0)
8	Deshmukh et al., [132]	3D 600000 Hexahedral	QUICK	PISO	PRESTO	(Fluent 6.2.16)
9	Wardle et al., [141]	3D 286000	First order upwind	PISO		VOF (Fluent 6.3)
10	Deshmukh et al., [119]	3D 600000 Hexahedral	QUICK	PISO	PRESTO	(Fluent 6.2.16)
11	Wardle et al., [27]	3D 800000 Tetrahedral				VOF (Fluent 6.3)
12	Wardle et al., [143]	311000 Tetrahedral (Annulus); 160000 Tetrahedral (Separator)				VOF (Fluent 6.3)
13	Sathe et al., [28]	3D 600000 Hexahedral	Second order upwind	SIMPLE	PRESTO	(EE) (Fluent 6.3)
14	Deng et al., [123]	3D 600000 Tetrahedral	First order upwind	SIMPLE	Standard	(Fluent 6.3.06)
15	Wardle, [145]	650000—2.5 M Polyhedral	First order upwind	PISO		VOF (Open FOAM-1.6)
16	Gandhir and Wardle, [165]	3D 586846 Polyhedral	First order upwind	PISO		VOF (Open FOAM-1.6)

^*Most of the authors, except from the group of Joshi and coworkers, have only specified that fluent (specific version) has been used for the CFD simulations. They have 𝑁𝑜𝑡 mentioned the various model parameters used for the simulations.
^**The underrelaxation factors have Not been specified by most of the authors.