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5154c4e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 | #!/usr/bin/env python3
from __future__ import annotations
import csv
import math
import re
import subprocess
from pathlib import Path
ROOT = Path("/home/user/Desktop")
CASE = ROOT / "cylinder_fo"
COEFFICIENTS = CASE / "postProcessing/forces/0/forceCoeffs.dat"
def read(path: Path) -> str:
return path.read_text(encoding="utf-8", errors="ignore")
def named_block(text: str, name: str) -> str:
text = re.sub(r"/\*.*?\*/|//[^\n]*", "", text, flags=re.S)
match = re.search(rf"(?m)^\s*{re.escape(name)}\s*\{{", text)
if not match:
raise ValueError(f"missing block {name}")
start = text.find("{", match.start())
depth = 0
for index in range(start, len(text)):
depth += text[index] == "{"
depth -= text[index] == "}"
if depth == 0:
return text[start + 1 : index]
raise ValueError(f"unterminated block {name}")
def has_entry(block: str, key: str, value: str) -> bool:
return re.search(rf"(?<!\w){re.escape(key)}\s+{value}\s*;", block) is not None
def close(actual: float, expected: float, tolerance: float) -> bool:
return math.isfinite(actual) and abs(actual - expected) <= tolerance
def patch(text: str, name: str) -> str:
return named_block(named_block(text, "boundaryField"), name)
def field(path: Path, kind: str) -> list:
text = read(path)
header = named_block(text, "FoamFile")
match = re.search(
rf"internalField\s+nonuniform\s+List<{kind}>\s+(\d+)\s*\((.*?)\)\s*;",
text,
re.S,
)
if not match:
raise ValueError(f"missing {kind} field")
if kind == "vector":
values = [
tuple(float(value) for value in item.split())
for item in re.findall(r"\(([^()]+)\)", match.group(2))
]
valid = all(
len(value) == 3 and all(math.isfinite(component) for component in value)
for value in values
)
else:
values = [float(value) for value in match.group(2).split()]
valid = all(math.isfinite(value) for value in values)
if (
len(values) != int(match.group(1))
or not valid
or not has_entry(header, "format", r"ascii")
or not has_entry(header, "class", rf"vol{kind.capitalize()}Field")
or not has_entry(header, "object", re.escape(path.name))
):
raise ValueError(f"invalid {kind} field")
return values
def paren_section(text: str, name: str) -> str:
match = re.search(rf"(?m)^\s*{re.escape(name)}\s*\(", text)
if not match:
raise ValueError(f"missing section {name}")
start = text.find("(", match.start())
depth = 0
for index in range(start, len(text)):
depth += text[index] == "("
depth -= text[index] == ")"
if depth == 0:
return text[start + 1 : index]
raise ValueError(f"unterminated section {name}")
def numeric_entry(text: str, key: str) -> float:
match = re.search(rf"(?m)^\s*{re.escape(key)}\s+([^;]+);", text)
if not match:
raise ValueError(f"missing entry {key}")
return float(match.group(1))
def dimensioned_value(text: str, key: str) -> float:
match = re.search(rf"(?m)^\s*{re.escape(key)}\s+\[[^]]+\]\s+([^;]+);", text)
if not match:
raise ValueError(f"missing dimensioned entry {key}")
return float(match.group(1))
def vector_entry(text: str, key: str, uniform: bool = False) -> tuple[float, float, float]:
prefix = r"uniform\s+" if uniform else ""
match = re.search(rf"(?m)^\s*{re.escape(key)}\s+{prefix}\(([^()]+)\)\s*;", text)
if not match:
raise ValueError(f"missing vector entry {key}")
values = tuple(float(value) for value in match.group(1).split())
if len(values) != 3:
raise ValueError(f"invalid vector entry {key}")
return values
def patch_faces(mesh: str, name: str) -> list[tuple[int, ...]]:
section = paren_section(named_block(mesh, name), "faces")
return [tuple(int(value) for value in item.split()) for item in re.findall(r"\(([^()]+)\)", section)]
def mesh_geometry_is_valid(mesh: str) -> bool:
scale_match = re.search(r"\bconvertToMeters\s+([^;]+);", mesh)
vertices = [
tuple(float(value) for value in item.split())
for item in re.findall(r"\(([^()]+)\)", paren_section(mesh, "vertices"))
]
if scale_match is None or len(vertices) != 32 or any(len(point) != 3 for point in vertices):
return False
scale = float(scale_match.group(1))
points = [tuple(scale * value for value in point) for point in vertices]
radii = [math.hypot(point[0], point[1]) for point in points]
zs = [point[2] for point in points]
inlet = patch_faces(mesh, "inlet")
outlet = patch_faces(mesh, "outlet")
cylinder = patch_faces(mesh, "cylinder")
def outer_half(faces: list[tuple[int, ...]], sign: int) -> bool:
return len(faces) == 4 and all(
len(face) == 4
and all(abs(radii[index] - 1.0) <= 1e-9 for index in face)
and sign * sum(points[index][0] for index in face) / 4.0 > 1e-6
for face in faces
)
return (
abs(min(zs)) <= 1e-12
and abs(max(zs) - 0.01) <= 1e-12
and sum(abs(radius - 0.05) <= 1e-9 for radius in radii) == 16
and sum(abs(radius - 1.0) <= 1e-9 for radius in radii) == 16
and len(re.findall(r"(?m)^\s*hex\b", mesh)) == 8
and len(re.findall(r"hex\s*\([^)]*\)\s*\(\s*40\s+12\s+1\s*\)", mesh)) == 8
and len(re.findall(r"(?m)^\s*arc\b", mesh)) == 32
and outer_half(inlet, -1)
and outer_half(outlet, 1)
and len(cylinder) == 8
and all(all(abs(radii[index] - 0.05) <= 1e-9 for index in face) for face in cylinder)
)
def log_finished(path: Path) -> bool:
text = read(path)
return "FOAM FATAL" not in text and text.rstrip().endswith("End")
def coefficient_history() -> list[tuple[float, float, float]]:
values = []
for line in read(COEFFICIENTS).splitlines():
stripped = line.strip()
if not stripped or stripped.startswith("#"):
continue
row = [float(value) for value in stripped.split()]
if len(row) >= 4:
values.append((row[0], row[2], row[3]))
return values
def check_case() -> bool:
mesh = read(CASE / "system/blockMeshDict")
velocity = read(CASE / "0/U")
pressure = read(CASE / "0/p")
physical = read(CASE / "constant/physicalProperties")
momentum = read(CASE / "constant/momentumTransport")
control = read(CASE / "system/controlDict")
forces = named_block(named_block(control, "functions"), "forces")
return all(
(
mesh_geometry_is_valid(mesh),
has_entry(named_block(mesh, "cylinder"), "type", r"wall"),
has_entry(named_block(mesh, "frontAndBack"), "type", r"empty"),
has_entry(patch(velocity, "inlet"), "value", r"uniform\s+\(1(?:\.0+)?\s+0(?:\.0+)?\s+0(?:\.0+)?\)"),
has_entry(patch(velocity, "outlet"), "type", r"zeroGradient"),
has_entry(patch(velocity, "cylinder"), "type", r"noSlip"),
has_entry(patch(velocity, "frontAndBack"), "type", r"empty"),
has_entry(patch(pressure, "outlet"), "type", r"fixedValue"),
has_entry(patch(pressure, "outlet"), "value", r"uniform\s+0(?:\.0+)?"),
abs(dimensioned_value(physical, "nu") - 1e-3) <= 1e-12,
"simulationType laminar;" in momentum,
abs(numeric_entry(control, "endTime") - 20.0) <= 1e-12,
abs(numeric_entry(control, "deltaT") - 0.0025) <= 1e-12,
has_entry(forces, "type", r"forceCoeffs"),
has_entry(forces, "patches", r"\(\s*cylinder\s*\)"),
abs(numeric_entry(forces, "rhoInf") - 1.0) <= 1e-12,
abs(numeric_entry(forces, "magUInf") - 1.0) <= 1e-12,
abs(numeric_entry(forces, "lRef") - 0.1) <= 1e-12,
abs(numeric_entry(forces, "Aref") - 0.001) <= 1e-12,
vector_entry(forces, "dragDir") == (1.0, 0.0, 0.0),
vector_entry(forces, "liftDir") == (0.0, 1.0, 0.0),
)
)
def check() -> bool:
required = (
ROOT / "build_case.py",
ROOT / "postprocess.py",
ROOT / "summary.txt",
ROOT / "force_history.csv",
CASE / "log.blockMesh",
CASE / "log.checkMesh",
CASE / "log.pimpleFoam",
CASE / "20/U",
CASE / "20/p",
COEFFICIENTS,
)
if any(not path.is_file() or path.stat().st_size == 0 for path in required):
return False
solve_log = read(CASE / "log.pimpleFoam")
check_log = read(CASE / "log.checkMesh")
if (
not log_finished(CASE / "log.blockMesh")
or "Mesh OK." not in check_log
or not log_finished(CASE / "log.checkMesh")
or not log_finished(CASE / "log.pimpleFoam")
or "Time = 20" not in solve_log
):
return False
mesh_check = subprocess.run(
[
"bash",
"--noprofile",
"--norc",
"-c",
"trap - CHLD; . /opt/openfoam11/etc/bashrc && checkMesh -case /home/user/Desktop/cylinder_fo",
],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
timeout=120,
)
if mesh_check.returncode != 0 or "Mesh OK." not in mesh_check.stdout or not check_case():
return False
velocity = field(CASE / "20/U", "vector")
pressure = field(CASE / "20/p", "scalar")
if not (len(velocity) == len(pressure) == 3840):
return False
history = coefficient_history()
if not history or abs(history[0][0]) > 1e-9 or abs(history[-1][0] - 20.0) > 1e-9 or any(
not all(math.isfinite(value) for value in row)
or row[0] < 0.0
or row[0] > 20.0 + 1.0e-9
for row in history
) or any(right[0] <= left[0] for left, right in zip(history, history[1:])):
return False
window = [row for row in history if 10.0 <= row[0] <= 20.0]
if len(window) < 100:
return False
cl_mean = sum(row[2] for row in window) / len(window)
cd_mean = sum(row[1] for row in window) / len(window)
cl_range = max(row[2] for row in window) - min(row[2] for row in window)
if not (1.0 < cd_mean < 2.0 and abs(cl_mean) < 0.1 and cl_range > 0.2):
return False
keys = ("time_s", "cd", "cl")
with (ROOT / "force_history.csv").open(encoding="utf-8", newline="") as stream:
rows = list(csv.DictReader(stream))
if len(rows) != len(history) or set(rows[0]) != set(keys):
return False
for row, expected in zip(rows, history):
actual = tuple(float(row[key]) for key in keys)
if any(not close(a, b, 5.0e-7) for a, b in zip(actual, expected)):
return False
values = [line.strip() for line in read(ROOT / "summary.txt").splitlines() if line.strip()]
if len(values) != 1:
return False
parts = [item.strip() for item in values[0].split(",")]
if len(parts) != 2:
return False
reported = tuple(float(value) for value in parts)
expected = (cl_mean, cd_mean)
return all(math.isfinite(value) for value in reported) and all(
abs(actual - target) <= 5.0e-7 for actual, target in zip(reported, expected)
)
def main() -> int:
try:
result = check()
except Exception:
result = False
print("True" if result else "False")
return 0
if __name__ == "__main__":
raise SystemExit(main())
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