Nozzle shapes
Purpose
Nozzle shapes can be used for the insertion of droplet sprays and laser beams (examples).
Syntax
The following nozzle shapes are available:
Shape |
Keyword |
Description |
|---|---|---|
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obligatory, outer radius of the nozzle orifice [length] |
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inner radius of the nozzle orifice, < |
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obigatory, outer radius of the nozzle orifice [length] |
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inner radius of the nozzle orifice, < |
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obligatory, outer cone opening angle of the spray, range: (0,180) units: [degrees] |
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inner cone opening angle of the spray, range: (0, |
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obligatory vector, axis of one pyramid side [length] |
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obligatory, length of x-axis pyramid side, range: (0,∞), units: [length] |
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obligatory, length of y-axis pyramid side, range: (0,∞), units: [length] |
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obligatory, opening angle at pyramid side orthogonal to x-axis [degrees] |
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obligatory, opening angle at pyramid side orthogonal to y-axis [degrees] |
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obligatory vector, axis of a principle axis of the ellipse [length] |
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obligatory, outer radius of the nozzle orifice along x-axis, range: (0,∞), units: [length] |
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inner radius of the nozzle orifice along x-axis, range: (0, |
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obligatory, outer radius of the nozzle orifice along y-axis, range: (0,∞), units: [length] |
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inner radius of the nozzle orifice along y-axis, range: (0, |
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obligatory vector, axis of a principle axis of the ellipse [length] |
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obligatory, obligatory, outer radius of the nozzle orifice along x-axis, range: (0,∞), units: [length] |
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inner radius of the nozzle orifice along x-axis, range: (0, |
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obligatory, outer cone opening angle of the spray along x-axis, range: (0,180), units: [degrees] |
|
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inner cone opening angle of the spray along x-axis, range: (0, |
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obligatory, obligatory, outer radius of the nozzle orifice along y-axis, range: (0,∞), units: [length] |
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inner radius of the nozzle orifice along y-axis, range: (0, |
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obligatory, outer cone opening angle of the spray along y-axis, range: (0,180), units: [degrees] |
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inner cone opening angle of the spray along y-axis, range: (0, |
Examples
insertion mode spray_nozzle particle_distribution sprayDist massrate 0.1 velocity constant (0.3, 0, -1.5) &
nozzle_shape cylinder outer_nozzle_radius 2e-3 center_of_nozzle (0, 0, 0)
insertion mode laser id laserDiode particle_distribution laserDist particlerate 5e7 velocity constant (0, 0, -5) &
nozzle_shape cylinder outer_nozzle_radius 5. laser_power 1e12 laser_polarization (0, 0, 1) center_of_nozzle (0, 0, 1)
insertion mode spray_nozzle particle_distribution sprayDist massrate 0.1 velocity constant (0.1, 0, -1) &
nozzle_shape cone outer_cone_angle 120 outer_nozzle_radius 3e-2 center_of_nozzle (-0.2, 0, -0.1)
insertion mode laser id laserDiode particle_distribution laserDist target_particle_count 50 particlerate 5e7 &
insert_every_time 1e-4 velocity constant (0, 0, -5.) nozzle_shape cone outer_nozzle_radius 5. outer_cone_angle 120 &
laser_power 1e12 laser_polarization (0, 0, 1) center_of_nozzle (0., 0., 8.)
insertion mode spray_nozzle particle_distribution sprayDist massrate 0.1 velocity constant (0.1, 0, -1) &
nozzle_shape pyramid pyramid_x_axis (1, 0, 0) pyramid_x_length 0.1 pyramid_y_length 0.2 &
pyramid_x_angle 45 pyramid_y_angle 0 center_of_nozzle (-0.2, 0, -0.1)
insertion mode spray_nozzle particle_distribution sprayDist massrate 2e-3 velocity constant (0, -1, -1) &
nozzle_shape elliptic_cylinder ellipsoid_x_axis (1, 0, 1) center_of_nozzle (-0.2, 0, -0.1) &
outer_nozzle_x_radius 2.5e-2 outer_nozzle_y_radius 1.3e-2
insertion mode spray_nozzle particle_distribution sprayDist massrate 2e-3 velocity constant (0, -1, -1) &
nozzle_shape elliptic_cylinder ellipsoid_x_axis (1, 0, 1) center_of_nozzle (-0.2, 0, -0.1) &
outer_nozzle_x_radius 2.5e-2 inner_nozzle_x_radius 1.5e-2 outer_nozzle_y_radius 1.3e-2 inner_nozzle_y_radius 1e-2
insertion mode spray_nozzle particle_distribution sprayDist target_mass 1 massrate 0.1 &
insert_every_time 1e-2 velocity constant (0.1, 0, -1) nozzle_shape elliptic_cone &
ellipsoid_x_axis (1, 0, 1) center_of_nozzle (-0.2, 0, -0.1) outer_cone_x_angle 90 inner_cone_x_angle 40 &
outer_cone_y_angle 20 inner_cone_y_angle 0 outer_nozzle_x_radius 4e-2 inner_nozzle_x_radius 1e-2 &
outer_nozzle_y_radius 3e-2 inner_nozzle_y_radius 1e-2
insertion mode spray_nozzle particle_distribution sprayDist target_mass 1 massrate 0.1 &
insert_every_time 1e-2 velocity constant (0.1, 0, -1) nozzle_shape elliptic_cone &
ellipsoid_x_axis (1, 0, 1) center_of_nozzle (-0.2, 0, -0.1) outer_cone_x_angle 90 outer_cone_y_angle 20 &
inner_cone_y_angle 0 outer_nozzle_x_radius 4e-2 outer_nozzle_y_radius 3e-2
Description
All nozzle shapes use the direction of the insertion velocity as their normal vector.
The usage of droplet materials and spray nozzles is demonstrated in this tutorial.
The usage of mass-less particles in laser beams is discussed in this tutorial.
The general shape of a spray nozzle of shape cylinder or cone can be seen here:
ro corresponds to the outer_nozzle_radius, ri to the inner_nozzle_radius,
αo to the outer_cone_angle and αi to the inner_cone_angle.
The general shape of a spray nozzle of shape pyramid can be seen here:
x-axis corresponds to pyramid_x_axis, lx corresponds to the pyramid_x_length,
ly to the pyramid_y_length and αx to the pyramid_x_angle. The pyramid_y_angle
is defined analogously to the pyramid_x_angle and not shown in the sketch above.
The general shape of a spray nozzle of shape elliptic_cylinder and elliptic_cone can be seen here:
x-axis corresponds to the ellipsoid_x_axis , ro,x to the outer_nozzle_x_radius,
r1,x to the inner_nozzle_x_radius, αo,x to the outer_cone_x_angle,
αi,x to the inner_cone_x_angle, ro,y to the outer_nozzle_y_radius,
ri,y to the inner_nozzle_y_radius,αo,y to the outer_cone_y_angle,
and αi,y to inner_cone_y_angle.
In all cases the center_of_nozzle keyword is used to define the center of the nozzle (see
documentation of insertion types spray_nozzle and
laser for more details and other keywords).