# No. 497 (Brown 1868): "Fan-blower. The casing has circular openings in its sides through which, by the revolution of the shaft and
# attached fan-blades, air is drawn in at the center of the casing, to be forced out under pressure through the spout."
# Model (cm, Brown's view along the shaft): the shaft is the one driven joint (90 rpm, counterclockwise, Brown's arrow). The air is
# particles in the casing's mid-plane (src/fluid/fluid2d.c, density 1.204 kg/m^3: at these speeds air is as incompressible as water):
# drawn in at the centre through the side openings (a supply kept full there, at rest), flung round by the blades (collision) against
# the volute, the tongue and the spout's walls, and out of the spout's mouth. The particles push back on the blades: the air's load is
# what the shaft's drive feels. Every particle is the solver's own, drawn as a short
# streak along its own velocity (its travel in 0.05 s): the flow's speed and direction as the solver has them.
# Generator: opencode-runs/fluidgen/gen497.py.
number: 497
slug: fan-blower
name: Fan-blower
brown: "Fan-blower. The casing has circular openings in its sides through which, by the revolution of the shaft and attached fan-blades, air is drawn in at the center of the casing, to be forced out under pressure through the spout."
units: cm
sim: {timestep: 0.001, integrator: implicitfast, iterations: 50, duration_s: 10, floor: false, gravity: 0}
bodies:
  - id: frame
    shape: part
    pos: [0, 0, 0]
    fixed: true
    color: "#d6cdb8"
    pieces:
      - {kind: rod, from: [5.8171e-16, -3.0, -9.5], to: [0.83343, -3.0, -9.5261], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [0.83343, -3.0, -9.5261], to: [1.6714, -3.0, -9.4788], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [1.6714, -3.0, -9.4788], to: [2.5073, -3.0, -9.3574], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [2.5073, -3.0, -9.3574], to: [3.3347, -3.0, -9.162], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [3.3347, -3.0, -9.162], to: [4.1469, -3.0, -8.8931], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [4.1469, -3.0, -8.8931], to: [4.9375, -3.0, -8.552], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [4.9375, -3.0, -8.552], to: [5.6999, -3.0, -8.1403], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [5.6999, -3.0, -8.1403], to: [6.4279, -3.0, -7.6604], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [6.4279, -3.0, -7.6604], to: [7.1153, -3.0, -7.1153], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [7.1153, -3.0, -7.1153], to: [7.7562, -3.0, -6.5082], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [7.7562, -3.0, -6.5082], to: [8.3451, -3.0, -5.8433], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [8.3451, -3.0, -5.8433], to: [8.8768, -3.0, -5.125], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [8.8768, -3.0, -5.125], to: [9.3463, -3.0, -4.3583], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [9.3463, -3.0, -4.3583], to: [9.7493, -3.0, -3.5485], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [9.7493, -3.0, -3.5485], to: [10.082, -3.0, -2.7014], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [10.082, -3.0, -2.7014], to: [10.34, -3.0, -1.8233], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [10.34, -3.0, -1.8233], to: [10.522, -3.0, -0.92058], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [10.522, -3.0, -0.92058], to: [10.625, -3.0, 0.0], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [10.625, -3.0, 0.0], to: [10.647, -3.0, 0.93148], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [10.647, -3.0, 0.93148], to: [10.587, -3.0, 1.8667], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [10.587, -3.0, 1.8667], to: [10.444, -3.0, 2.7985], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [10.444, -3.0, 2.7985], to: [10.219, -3.0, 3.7195], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [10.219, -3.0, 3.7195], to: [9.9127, -3.0, 4.6224], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [9.9127, -3.0, 4.6224], to: [9.5263, -3.0, 5.5], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [9.5263, -3.0, 5.5], to: [9.0619, -3.0, 6.3452], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [9.0619, -3.0, 6.3452], to: [8.5222, -3.0, 7.151], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [8.5222, -3.0, 7.151], to: [7.9108, -3.0, 7.9108], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [7.9108, -3.0, 7.9108], to: [7.2314, -3.0, 8.618], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [7.2314, -3.0, 8.618], to: [6.4886, -3.0, 9.2667], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [6.4886, -3.0, 9.2667], to: [5.6875, -3.0, 9.851], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [5.6875, -3.0, 9.851], to: [4.8337, -3.0, 10.366], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [4.8337, -3.0, 10.366], to: [3.9332, -3.0, 10.806], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [3.9332, -3.0, 10.806], to: [2.9926, -3.0, 11.169], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [2.9926, -3.0, 11.169], to: [2.0187, -3.0, 11.448], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [2.0187, -3.0, 11.448], to: [1.0186, -3.0, 11.643], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [1.0186, -3.0, 11.643], to: [7.1948e-16, -3.0, 11.75], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [7.1948e-16, -3.0, 11.75], to: [-1.0295, -3.0, 11.768], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [-1.0295, -3.0, 11.768], to: [-2.0621, -3.0, 11.695], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [-2.0621, -3.0, 11.695], to: [-3.0897, -3.0, 11.531], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [-3.0897, -3.0, 11.531], to: [-4.1042, -3.0, 11.276], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [-4.1042, -3.0, 11.276], to: [-5.0978, -3.0, 10.932], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [-5.0978, -3.0, 10.932], to: [-6.0625, -3.0, 10.501], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [-6.0625, -3.0, 10.501], to: [-6.9905, -3.0, 9.9834], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [-6.9905, -3.0, 9.9834], to: [-7.8741, -3.0, 9.384], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [-7.8741, -3.0, 9.384], to: [-8.7063, -3.0, 8.7063], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [-8.7063, -3.0, 8.7063], to: [-9.4798, -3.0, 7.9545], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [-9.4798, -3.0, 7.9545], to: [-10.188, -3.0, 7.1339], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [-10.188, -3.0, 7.1339], to: [-10.825, -3.0, 6.25], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
      - {kind: rod, from: [-10.825, -3.0, 6.25], to: [-11.385, -3.0, 5.3091], radius: 0.35, collide: 0, capsule: true, color: "#8b8170"}
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      - {kind: poly, points: [[0.0, -14.0], [20.0, -14.0], [20.0, -9.5], [0.0, -9.5]], y: [3.0, 3.3], collide: 0, color: "#c9bfa9"}
      - {kind: poly, points: [[20.0, -15.6], [21.0, -15.6], [21.0, -7.9], [20.0, -7.9]], y: [-4.0, 4.0], collide: 0, color: "#8b8170"}
      - {kind: rod, from: [0.0, 3.3, 0.0], to: [0.0, 7.0, 0.0], radius: 1.2, collide: 0, color: "#6d675c"}
      - {kind: poly, points: [[-12.0, -17.5], [24.0, -17.5], [24.0, -16.5], [-12.0, -16.5]], y: [-6.0, 6.0], collide: 0, color: "#8b7d66"}
      - {kind: poly, points: [[-6.0, -16.5], [6.0, -16.5], [4.0, -13.5], [-4.0, -13.5]], y: [-3.0, 3.0], collide: 0, color: "#8b8170"}
  - id: fan
    shape: part
    pos: [0, 0, 0]
    mass: 0.3
    color: "#b8ad97"
    pieces:
      - {kind: disc, center: [0.0, 0.0], radius: 2.4, y: [2.6, 3.0], collide: 0, inner: 0.9, color: "#8f8a80"}
      - {kind: rod, from: [0.0, -4.0, 0.0], to: [0.0, 3.3, 0.0], radius: 0.9, collide: 0, color: "#6d675c"}
      - {kind: poly, points: [[0.17599, 2.3622], [0.41472, 3.4741], [0.062743, 3.5497], [-0.17599, 2.4378]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[0.39964, 3.4312], [0.93277, 4.4947], [0.61094, 4.656], [0.07782, 3.5926]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[0.90723, 4.4567], [1.7444, 5.4121], [1.4737, 5.6493], [0.63648, 4.694]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[1.71, 5.3817], [2.853, 6.1567], [2.6509, 6.4546], [1.508, 5.6797]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[2.8129, 6.1363], [4.2425, 6.6508], [4.1205, 6.9896], [2.691, 6.475]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[-2.1337, -1.0287], [-3.216, -1.3779], [-3.1055, -1.7205], [-2.0232, -1.3713]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[-3.1714, -1.3695], [-4.3589, -1.4395], [-4.3377, -1.7989], [-3.1502, -1.7289]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[-4.3132, -1.4427], [-5.5592, -1.1953], [-5.6293, -1.5484], [-4.3833, -1.7958]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[-5.5157, -1.2099], [-6.7583, -0.60759], [-6.9153, -0.93154], [-5.6728, -1.5339]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[-6.7206, -0.63209], [-7.881, 0.34866], [-8.1134, 0.07371], [-6.953, -0.90704]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[1.9577, -1.3335], [2.8013, -2.0962], [3.0427, -1.8292], [2.1992, -1.0665]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[2.7717, -2.0617], [3.4261, -3.0551], [3.7268, -2.8571], [3.0723, -1.8637]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[3.406, -3.014], [3.8148, -4.2167], [4.1556, -4.1009], [3.7469, -2.8982]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[3.8057, -4.1718], [3.9053, -5.5491], [4.2644, -5.5231], [4.1647, -4.1458]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
      - {kind: poly, points: [[3.9077, -5.5042], [3.6386, -6.9995], [3.9929, -7.0633], [4.262, -5.568]], y: [-2.5, 2.5], collide: 1, color: "#b8ad97"}
joints:
  - {id: j_fan, type: hinge, body: fan, axis: [0, 1, 0], damping: 0}   # the shaft (the only drive); no bearing friction, so its torque is the air's
fluid:
  plane: xz
  slab: [-1, 1]
  spacing: 0.5
  dt: 0.002
  iterations: 4
  rho: 1.204
  viscosity: 0.05
  friction: 0.02
  color: "#5f8aa6"
  streaks: 0.05                                       # each particle drawn along its own velocity: the flow
  domain: [-16, -16, 24, 16]
  reservoir: {box: [-3.6, -3.6, 3.6, 3.6], head: 3.6, gap: 1.3}   # the side openings: air drawn in at the centre, as much as the fan takes
  sinks: [[20.5, -15, 24, -9]]                          # out of the spout's mouth
  fill: [[-6.5, -6.5, 6.5, -3.6], [-6.5, 3.6, 6.5, 6.5], [-6.5, -3.6, -3.6, 3.6], [3.6, -3.6, 6.5, 3.6], [-9, -3, -6.5, 3], [6.5, -3, 9, 3], [-3, -9, 3, -6.5], [-3, 6.5, 3, 9], [0.5, -13.6, 20, -9.9]]   # the casing and spout full of air at rest
driver: {joint: j_fan, kind: velocity, rpm: -90, kv: 0.5, max_torque: 2}
checks:
  # the shaft keeps its speed against the air it drives (the window also sets the run: 9 s)
  - {type: turning, joint: j_fan, direction: -1, min_mean: 8.5, slow: 0.3, min_fraction: 0.95, settle_s: 1.0, window_s: 8}
  - {type: penetration, max: 0.003}
camera: {target: [4, 0, -7], position: [4, -300, -5], fov: 10}
display:
  output: j_fan
  labels: {j_fan: "Fan shaft (driver)"}