Improve physical geometry, fluid solvers, audio, and profiling

engines/ej20.toml

@@ -1,5 +1,5 @@
 # Engine definition. Dimensional keys state their units.
-schema_version = 1
+schema_version = 2
 id = "ej20"
 name = "EJ20-inspired / 2.0 flat four NA"
 category = "Boxer / flat four"
@@ -7,9 +7,11 @@ description = "Estimated concept calibration / EFI"
 order = 27
 cycle = "four_stroke"
 
+[simulation]
+cells_per_meter = 20.0
+
 [engine]
 bank_angle_deg = 180.0
-collector_volume_litres = 1.0
 cylinders = 4
 initial_rpm = 1400.0
 initialize_phased_charge = true
@@ -18,7 +20,6 @@ maximum_load_torque_nm = 30.0
 minimum_substeps = 1
 phase_degrees = [0.0, 540.0, 360.0, 180.0]
 pipe_damping = 1.0
-plenum_volume_litres = 4.0
 starter_torque_nm = 49.85708
 throttle_diameter_mm = 65.0
 topology = "collector"
@@ -31,18 +32,12 @@ burn_duration_deg = 60.0
 burn_start_deg = 5.0
 compression = 10.0
 energy_variation = 0.05
-exhaust_close_deg = 390.0
-exhaust_open_deg = 130.0
 exhaust_valve_count = 1
 exhaust_valve_diameter_mm = 29.44
-exhaust_valve_lift_mm = 8.280001
 fuel_lhv_j_per_kg = 4.4e+07
 heat_transfer = 100.0
-intake_close_deg = 590.0
-intake_open_deg = 340.0
 intake_valve_count = 1
 intake_valve_diameter_mm = 34.96
-intake_valve_lift_mm = 9.2
 misfire_probability = 0.0
 rod_mm = 135.0
 stroke_mm = 75.0
@@ -101,26 +96,278 @@ system = "injection"
 
 [[pipes]]
 id = "intake"
-cells = 4
 diameter_mm = 75.0
-length_mm = 200.0
 
 [[pipes]]
 id = "runners"
 count = 4
-cells = 5
 diameter_mm = 35.0
-length_mm = 250.0
 
 [[pipes]]
 id = "primaries"
 count = 4
-cells = 13
 diameter_mm = 38.0
-length_mm = 650.0
 
 [[pipes]]
 id = "tailpipe"
-cells = 30
 diameter_mm = 60.0
-length_mm = 1500.0
+
+[cam.intake]
+points = [
+  [0.000, 0.000000],
+  [340.000, 0.000000],
+  [345.000, 0.167219],
+  [350.000, 0.631194],
+  [355.000, 1.335398],
+  [360.000, 2.223309],
+  [365.000, 3.238400],
+  [370.000, 4.324147],
+  [375.000, 5.424026],
+  [380.000, 6.481510],
+  [385.000, 7.440077],
+  [390.000, 8.243200],
+  [395.000, 8.834355],
+  [400.000, 9.157018],
+  [402.500, 9.200000],
+  [527.500, 9.200000],
+  [532.500, 9.032781],
+  [537.500, 8.568806],
+  [542.500, 7.864602],
+  [547.500, 6.976691],
+  [552.500, 5.961600],
+  [557.500, 4.875853],
+  [562.500, 3.775974],
+  [567.500, 2.718490],
+  [572.500, 1.759923],
+  [577.500, 0.956800],
+  [582.500, 0.365645],
+  [587.500, 0.042982],
+  [590.000, 0.000000],
+  [720.000, 0.000000]
+]
+
+[cam.exhaust]
+points = [
+  [0.000, 0.000000],
+  [130.000, 0.000000],
+  [135.000, 0.139445],
+  [140.000, 0.527629],
+  [145.000, 1.119326],
+  [150.000, 1.869313],
+  [155.000, 2.732363],
+  [160.000, 3.663250],
+  [165.000, 4.616751],
+  [170.000, 5.547638],
+  [175.000, 6.410688],
+  [180.000, 7.160675],
+  [185.000, 7.752372],
+  [190.000, 8.140556],
+  [195.000, 8.280001],
+  [325.000, 8.280001],
+  [330.000, 8.140556],
+  [335.000, 7.752372],
+  [340.000, 7.160675],
+  [345.000, 6.410688],
+  [350.000, 5.547638],
+  [355.000, 4.616751],
+  [360.000, 3.663250],
+  [365.000, 2.732363],
+  [370.000, 1.869313],
+  [375.000, 1.119326],
+  [380.000, 0.527629],
+  [385.000, 0.139445],
+  [390.000, 0.000000],
+  [720.000, 0.000000]
+]
+
+[valves.intake]
+mass_g = 35.0
+spring_rate_n_per_mm = 38.0
+damping_n_s_per_m = 24.0
+seat_force_n = 75.0
+maximum_lift_mm = 15.0
+seat_restitution = 0.005
+cam_restitution = 0.01
+stop_restitution = 0.01
+
+[valves.exhaust]
+mass_g = 35.0
+spring_rate_n_per_mm = 38.0
+damping_n_s_per_m = 24.0
+seat_force_n = 75.0
+maximum_lift_mm = 15.0
+seat_restitution = 0.005
+cam_restitution = 0.01
+stop_restitution = 0.01
+
+[valve_sound]
+mode_hz = 3600.0
+effective_mass_g = 180.0
+radiation_area_cm2 = 10.0
+damping_ratio = 0.9
+
+[[geometry.cylinders]]
+origin_mm = [ -55, 0, 0 ]
+tilt_deg = -90.0
+
+[[geometry.cylinders]]
+origin_mm = [ 55, 0, 0 ]
+tilt_deg = -90.0
+
+[[geometry.cylinders]]
+origin_mm = [ -55, 0, 0 ]
+tilt_deg = 90.0
+
+[[geometry.cylinders]]
+origin_mm = [ 55, 0, 0 ]
+tilt_deg = 90.0
+
+# intake
+[[geometry.pipes]]
+index = 0
+points_mm = [
+  [ -310, 307.5713, 0 ],
+  [ -110, 307.5713, 0 ]
+]
+
+# runners 1
+[[geometry.pipes]]
+index = 1
+points_mm = [
+  [ -55, 286.8, -172.8334 ],
+  [ -55, 36.8, -172.8334 ]
+]
+
+# runners 2
+[[geometry.pipes]]
+index = 2
+points_mm = [
+  [ 55, 286.8, -172.8334 ],
+  [ 55, 36.8, -172.8334 ]
+]
+
+# runners 3
+[[geometry.pipes]]
+index = 3
+points_mm = [
+  [ -55, 286.8, 172.8334 ],
+  [ -55, 36.8, 172.8334 ]
+]
+
+# runners 4
+[[geometry.pipes]]
+index = 4
+points_mm = [
+  [ 55, 286.8, 172.8334 ],
+  [ 55, 36.8, 172.8334 ]
+]
+
+# primaries 1
+[[geometry.pipes]]
+index = 5
+points_mm = [
+  [ -55, -46, -172.8334 ],
+  [ -53.4569, -70.3798, -166.4422 ],
+  [ -49.0959, -88.6617, -155.8208 ],
+  [ -42.3196, -101.4701, -141.3612 ],
+  [ -33.5305, -109.4294, -123.455 ],
+  [ -23.1312, -113.164, -102.4941 ],
+  [ -11.5242, -113.2982, -78.8702 ],
+  [ 0.8879, -110.4563, -52.9752 ],
+  [ 13.7025, -105.2628, -25.2009 ],
+  [ 26.5171, -98.342, 4.0609 ],
+  [ 38.9292, -90.3182, 34.4185 ],
+  [ 50.5362, -81.8159, 65.48 ],
+  [ 60.9355, -73.4593, 96.8536 ],
+  [ 69.7246, -65.873, 128.1476 ],
+  [ 76.5009, -59.6811, 158.97 ],
+  [ 80.8619, -55.5081, 188.9292 ],
+  [ 82.405, -53.9784, 217.6334 ]
+]
+
+# primaries 2
+[[geometry.pipes]]
+index = 6
+points_mm = [
+  [ 55, -46, -172.8334 ],
+  [ 55.448, -69.1222, -166.546 ],
+  [ 56.7141, -86.4707, -155.833 ],
+  [ 58.6814, -98.6364, -141.125 ],
+  [ 61.2331, -106.2101, -122.8528 ],
+  [ 64.2522, -109.7826, -101.4471 ],
+  [ 67.622, -109.9447, -77.3387 ],
+  [ 71.2255, -107.2873, -50.9582 ],
+  [ 74.9459, -102.4012, -22.7365 ],
+  [ 78.6663, -95.8772, 6.8957 ],
+  [ 82.2698, -88.3061, 37.5077 ],
+  [ 85.6395, -80.2789, 68.6687 ],
+  [ 88.6587, -72.3862, 99.948 ],
+  [ 91.2104, -65.219, 130.9149 ],
+  [ 93.1777, -59.3681, 161.1385 ],
+  [ 94.4438, -55.4243, 190.1883 ],
+  [ 94.8918, -53.9784, 217.6334 ]
+]
+
+# primaries 3
+[[geometry.pipes]]
+index = 7
+points_mm = [
+  [ -55, -46, 172.8334 ],
+  [ -54.3082, -53.2985, 172.4701 ],
+  [ -52.3079, -58.8583, 173.7033 ],
+  [ -49.1117, -62.8543, 176.3161 ],
+  [ -44.8324, -65.4615, 180.0913 ],
+  [ -39.5825, -66.8548, 184.8119 ],
+  [ -33.4748, -67.2092, 190.2608 ],
+  [ -26.6219, -66.6995, 196.2209 ],
+  [ -19.1364, -65.5008, 202.4752 ],
+  [ -11.1311, -63.7879, 208.8066 ],
+  [ -2.7185, -61.7358, 214.9981 ],
+  [ 5.9887, -59.5194, 220.8326 ],
+  [ 14.8778, -57.3138, 226.093 ],
+  [ 23.8361, -55.2938, 230.5623 ],
+  [ 32.751, -53.6343, 234.0234 ],
+  [ 41.5099, -52.5103, 236.2592 ],
+  [ 50, -52.0968, 237.0527 ]
+]
+
+# primaries 4
+[[geometry.pipes]]
+index = 8
+points_mm = [
+  [ 55, -46, 172.8334 ],
+  [ 55.2388, -48.968, 172.7016 ],
+  [ 55.9138, -51.2704, 173.2603 ],
+  [ 56.9625, -52.9727, 174.4452 ],
+  [ 58.3228, -54.1402, 176.1922 ],
+  [ 59.9323, -54.8385, 178.4371 ],
+  [ 61.7286, -55.1329, 181.1157 ],
+  [ 63.6496, -55.0888, 184.1638 ],
+  [ 65.6329, -54.7716, 187.5172 ],
+  [ 67.6162, -54.2468, 191.1118 ],
+  [ 69.5372, -53.5797, 194.8832 ],
+  [ 71.3336, -52.8358, 198.7675 ],
+  [ 72.943, -52.0805, 202.7003 ],
+  [ 74.3033, -51.3792, 206.6174 ],
+  [ 75.3521, -50.7972, 210.4548 ],
+  [ 76.027, -50.4001, 214.1482 ],
+  [ 76.2658, -50.2532, 217.6334 ]
+]
+
+# tailpipe
+[[geometry.pipes]]
+index = 9
+points_mm = [
+  [ 150, -55, 267.6333 ],
+  [ 1649.9999, -55, 267.6333 ]
+]
+
+[[geometry.volumes]]
+id = "intake_plenum"
+center_mm = [ 0, 307.5713, 0 ]
+size_mm = [ 220, 41.5426, 437.6667 ]
+
+[[geometry.volumes]]
+id = "exhaust_collector"
+center_mm = [ 100, -55, 267.6333 ]
+size_mm = [ 100, 100, 100 ]