A helix pulled at a constant velocity †

• Simulation parameters (N30k3.0p52.0_vy.udf)
• CFD Lattice: 256 x 256 x 256 mesh
• Number of Beads: N = 30
• Diameter of Particles: D = 4 mesh
• Volume Fraction: Φ = 0.00048
• Velocity: V = -0.005
• Number of Iteration Steps: 100000
• Computation Time: 4 days on single core
• Parameters of the helical particle
• Orientation: crockwise
• Number of Beads: N = 30
• Number of Turns: k = 3.0
• Helical Pitch: p = 52.0 mesh

A helix rotated at a constant angular velocity †

• Simulation parameters (N30k3.0p52.0_omegay.udf)
• CFD Lattice: 256 x 256 x 256 mesh
• Number of Beads: N = 30
• Diameter of Particles: D = 4 mesh
• Volume Fraction: Φ = 0.00048
• Angular Velocity: Ω = 0.00041
• Number of Iteration Steps: 100000
• Computation Time: 4 days on single core
• Parameters of the helical particle
• Orientation: crockwise
• Number of Beads: N = 30
• Number of Turns: k = 3.0
• Helical Pitch: p = 52.0 mesh

A helix in sedimentation †

• Simulation parameters (N30k3.0p52.0_gravity.udf)
• CFD Lattice: 256 x 256 x 256 mesh
• Number of Beads: N = 30
• Diameter of Particles: D = 4 mesh
• Volume Fraction: Φ = 0.00048
• Gravity: g = -0.01
• Number of Iteration Steps: 100000
• Computation Time: 1.1 day on 8 cores (with ICC+MKL+OMP)
• Parameters of the helical particle
• Orientation: crockwise
• Number of Beads: N = 30
• Number of Turns: k = 3.0
• Helical Pitch: p = 52.0 mesh

Three helices in sedimentation †

• Simulation parameters (helixes_gravity.udf)
• CFD Lattice: 256 x 256 x 256 mesh
• Number of Beads: N = 100
• Diameter of Particles: D = 4 mesh
• Volume Fraction: Φ = 0.0016
• Gravity: g = -0.01
• Number of Iteration Steps: 100000
• Computation Time: 1.1 day on 8 cores (with ICC+MKL+OMP)
• Parameters of the helical particles (left-to-right)
• Number of Beads: N = 35, 25, 40
• Number of Turns: k = 4.0, 2.5, 3.0
• Helical Pitch: p = 20.0, 44.0, 36.0

Three helices in planer shear flow with Lees-Edwards PBC †

• Simulation parameters (helixes_shear0005.udf)
• CFD Lattice: 256 x 256 x 256 mesh
• Number of Beads: N = 100
• Diameter of Particles: D = 4 mesh
• Volume Fraction: Φ = 0.0016
• Shear Rate: s = 0.005
• Number of Iteration Steps: 50000
• Computation Time: 2 days on 8 cores (with ICC+MKL+OMP)
• Parameters of the helical particles (left-to-right)
• Number of Beads: N = 35, 25, 40
• Number of Turns: k = 4.0, 2.5, 3.0
• Helical Pitch: p = 20.0, 44.0, 36.0

• Related Papers

Attach file: define.udf 247 download show_velocity2_rigid.py 286 download s001_t000_rigid.udf 276 download particleshow.py 278 download N30k3.0p52.0_vy.udf 263 download N30k3.0p52.0_omegay.udf 285 download N30k3.0p52.0_gravity.udf 266 download helixes_shear0005.udf 274 download helixes_gravity.udf 252 download helixudf_generator.zip 251 download