A flow divider adapted to be mounted in an atomization device for diverging a fluid, comprising: a main body that includes a first side surface and a second side surface being opposite to each other along a central axis (a) of said main body, characterized by: said first side surface having a central segment that transversely intersects the central axis (a), and that has an inlet channel recessed toward said second side surface, a generally annular channel that surrounds said central segment, that is recessed toward said second side surface, and that is spatially communicated with said inlet channel at a junction space disposed between two first imaginary lines that extend radially with respect to the central axis (a), and an inclined segment that surrounds said annular channel; wherein a width of said annular channel along a radial direction of the central axis (a) has a start measurement (Wx) along one of the first imaginary lines, and an end measurement (Wo) along the other one of the first imaginary lines, the end measurement (Wo) being smaller than the start measurement (Wx), the width of said annular channel decreasing gradually from the start measurement (Wx) to the end measurement (Wo) along a first rotational direction with respect to the central axis (a); and wherein said inclined segment has one of a first configuration, in which said inclined segment extends outwardly with respect to the central axis (a) and toward said second side surface, and a second configuration, in which said inclined segment extends outwardly with respect to the central axis (a) and away from said second side surface.s said first side surface having a central segment that transversely intersects the central axis (a), and that has an inlet channel recessed toward said second side surface, a generally annular channel that surrounds said central segment, that is recessed toward said second side surface, and that is spatially communicated with said inlet channel at a junction space disposed between two first imaginary lines that extend radially with respect to the central axis (a), and an inclined segment that surrounds said annular channel; a central segment that transversely intersects the central axis (a), and that has an inlet channel recessed toward said second side surface, a generally annular channel that surrounds said central segment, that is recessed toward said second side surface, and that is spatially communicated with said inlet channel at a junction space disposed between two first imaginary lines that extend radially with respect to the central axis (a), and an inclined segment that surrounds said annular channel; wherein a width of said annular channel along a radial direction of the central axis (a) has a start measurement (Wx) along one of the first imaginary lines, and an end measurement (Wo) along the other one of the first imaginary lines, the end measurement (Wo) being smaller than the start measurement (Wx), the width of said annular channel decreasing gradually from the start measurement (Wx) to the end measurement (Wo) along a first rotational direction with respect to the central axis (a); and wherein said inclined segment has one of a first configuration, in which said inclined segment extends outwardly with respect to the central axis (a) and toward said second side surface, and a second configuration, in which said inclined segment extends outwardly with respect to the central axis (a) and away from said second side surface.s