COMSOL 6.4 - Impeller Parameters

Impeller Parameters

The table below contains the names and descriptions of the input parameter used for the impellers in the Mixer Module Part Library.

Table 2-1: Mixer Module Part Library Parameters.

ab_ib	Bending angle of folded section
ac_h_s_ib	Shear angle, back of c-shape blades
ac_ib	Vertical angle between arm and c-shaped blade
ac_s_ib	Internal angle, c-shaped profile
ap_ib	Pitch angle of impeller blade
ap_pb	Pitch angle of the propeller blade
ar_ib	Rake angle of impeller
ar_pb	Rake angle of the propeller blade
as_ib	Relative rotation angle around shaft
as_pb	Shift angle for positioning several propellers with slightly different angles on the same shaft
d_a_ib	Diameter of attachment section
d_cs_pr	Diameter of cross-section planes above and below the propeller. The planes are used to compute power draw and flow numbers.
d_hu	Impeller hub diameter
d_id	Diameter of impeller dish
d_im	Impeller diameter
d_is	Impeller shaft diameter
d_pr	Propeller diameter
d_ps	Diameter of the propeller shaft
d_ta	Tank diameter
Da d_im	Input diameter for turbulence model
db_im	Distance of first impeller hub from bottom
dc_ib	Blade width, c-shaped blades
h_an_im	Height of anchor impeller
h_hu	Height of propeller hub
hp_im	Impeller position
hp_is	Position of the lowest part of the impeller shaft
hp_pr	Position of the lowest part of the propeller hub or propeller shaft along the z-axis
l_ib	Length of the impeller blades, Rushton, Smith
lc_ib	Blade length, c-shaped blades
lr_bu_ib	Relative position of the bending point along the length of the upper edge of the impeller blade
lr_cl_ib	Relative position of cutting point along the length of the lower edge
lr_cu_ib	Relative position of cutting point along the length of the upper edge
n_ib	Number of blades
n_pb	Number of propeller blades
pa_cs_pr	Add cross-section planes for flow evaluation above and below the propeller: 1 = add planes, 0 = do not add planes
pa_rd_im	Parameter that controls the impeller blade direction: 1 = clockwise and -1 = counterclockwise
pa_rd_pr	Rotational direction of the propeller: 1 = clockwise, -1 = counterclockwise
pa_ud_im	Flip impeller vertically
pa_ud_pr	Parameter that turns the propeller 180 degrees around the x-axis, that is, upside down: 0 = off, 1 = on
rc_h_ib	Curvature of backswept Rushton, Smith, and Backswept impeller
rc_v_ib	Hydrofoil curvature radius closest to the hub
rf_e_ib	Fillet radius of edge where blade bends
rf_ib	Fillet radius of outer vertices
t_a	Thickness of impeller arm
t_c	Thickness of c shaped blade
t_ib	Thickness of impeller blade
t_id	Thickness of impeller disk
t_pb	Thickness of propeller blade
w_a_ib	Blade attachment width
w_bou_ib	Width of the folded section at the outer edge
w_cil_ib	Width of inner and lower cut
w_ciu_ib	Width of inner and upper cut
w_col_ib	Width of outer and lower cut
w_cou_ib	Width of outer and upper cut
w_ib	Impeller blade width
w_o_ib	Outer impeller width
w_pb	Width of the propeller blade
wc_ib	Blade distance, c-shaped blades
wc_o_ib	Outer arm width for c-shaped impeller
wr_ai_ib	Ratio between blade width and blade attachment
wr_asu_ib	Asymmetry factor for upper part of the width of the impeller blade: 1 = symmetry, >1 = wider upper part