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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 / "shock_tube"
PLATEAU_MIN = 0.64
PLATEAU_MAX = 0.72
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 initial_states(path: Path, left: float, right: float) -> bool:
try:
values = field(path, "scalar")
except ValueError:
return False
return len(values) == 1000 and all(abs(value - left) <= 1.0e-6 for value in values[:500]) and all(abs(value - right) <= 1.0e-6 for value in values[500:])
def latest_time() -> Path:
times = [
path
for path in CASE.iterdir()
if path.is_dir()
and re.fullmatch(r"(?:\d+(?:\.\d*)?|\.\d+)(?:[eE][-+]?\d+)?", path.name)
and float(path.name) > 0
]
if not times:
raise FileNotFoundError("no computed time directory")
return max(times, key=lambda path: float(path.name))
def field(path: Path, kind: str) -> list:
text = read(path)
header = named_block(text, "FoamFile")
if not (
has_entry(header, "format", r"ascii")
and has_entry(header, "class", rf"vol{kind.capitalize()}Field")
and has_entry(header, "object", re.escape(path.name))
):
raise ValueError(f"field is not ASCII: {path}")
match = re.search(
rf"internalField\s+nonuniform\s+List<{kind}>\s+(\d+)\s*\((.*?)\)\s*;",
text,
re.S,
)
if not match:
raise ValueError(f"missing nonuniform {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:
raise ValueError("field count mismatch")
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"(?<!\w){re.escape(key)}\s+([^;]+);", text)
if not match:
raise ValueError(f"missing entry {key}")
return float(match.group(1))
def uniform_vector(text: str) -> tuple[float, float, float]:
match = re.search(r"\binternalField\s+uniform\s+\(([^()]+)\)\s*;", text)
if not match:
raise ValueError("missing uniform vector field")
values = tuple(float(value) for value in match.group(1).split())
if len(values) != 3:
raise ValueError("invalid uniform vector field")
return values
def box_entry(text: str) -> tuple[tuple[float, ...], tuple[float, ...]]:
match = re.search(r"\bbox\s+\(([^()]+)\)\s+\(([^()]+)\)\s*;", text)
if not match:
raise ValueError("missing box entry")
return tuple(float(value) for value in match.group(1).split()), tuple(
float(value) for value in match.group(2).split()
)
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"))
]
shapes = [
tuple(int(value) for value in item.split())
for item in re.findall(r"hex\s*\([^)]*\)\s*\(([^()]*)\)", paren_section(mesh, "blocks"))
]
if (
scale_match is None
or len(vertices) != 8
or any(len(point) != 3 for point in vertices)
or shapes != [(1000, 1, 1)]
):
return False
scale = float(scale_match.group(1))
xs, ys, zs = zip(*(tuple(scale * value for value in point) for point in vertices))
return (
abs(min(xs)) <= 1e-12
and abs(max(xs) - 1.0) <= 1e-12
and abs(min(ys)) <= 1e-12
and abs(max(ys) - 0.01) <= 1e-12
and abs(min(zs)) <= 1e-12
and abs(max(zs) - 0.01) <= 1e-12
)
def log_finished(path: Path) -> bool:
text = read(path)
return "FOAM FATAL" not in text and text.rstrip().endswith("End")
def pressure_profile(final: Path) -> tuple[float, list[tuple[float, float]]]:
centres = field(final / "C", "vector")
pressure = field(final / "p", "scalar")
if not (len(centres) == len(pressure) == 1000):
raise ValueError("unexpected cell count")
profile = sorted(((point[0], value) for point, value in zip(centres, pressure)), key=lambda row: row[0])
plateau = [value for x, value in profile if PLATEAU_MIN <= x <= PLATEAU_MAX]
if len(plateau) != 80 or any(not math.isfinite(value) or value <= 0 for value in pressure):
raise ValueError("invalid pressure field")
average = sum(plateau) / len(plateau)
relative_std = math.sqrt(sum((value - average) ** 2 for value in plateau) / len(plateau)) / average
if not (20000 < average < 50000 and relative_std < 0.05):
raise ValueError("fixed interval is not the expected post-shock plateau")
return average, profile
def check_case() -> bool:
mesh = read(CASE / "system/blockMeshDict")
control = read(CASE / "system/controlDict")
initial = read(CASE / "system/setFieldsDict")
thermo = read(CASE / "constant/physicalProperties")
velocity = read(CASE / "0/U")
pressure = read(CASE / "0/p")
temperature = read(CASE / "0/T")
return all(
(
mesh_geometry_is_valid(mesh),
has_entry(named_block(mesh, "leftRight"), "type", r"patch"),
has_entry(named_block(mesh, "empty"), "type", r"empty"),
"application rhoCentralFoam;" in control,
abs(numeric_entry(control, "endTime") - 0.0005) <= 1e-15,
abs(numeric_entry(control, "maxCo") - 0.2) <= 1e-12,
re.search(r"\bwriteFormat\s+ascii\s*;", control) is not None,
box_entry(initial) == ((0.0, 0.0, 0.0), (0.5, 0.01, 0.01)),
uniform_vector(velocity) == (0.0, 0.0, 0.0),
has_entry(patch(velocity, "leftRight"), "type", r"zeroGradient"),
has_entry(patch(velocity, "empty"), "type", r"empty"),
has_entry(patch(pressure, "leftRight"), "type", r"zeroGradient"),
has_entry(patch(pressure, "empty"), "type", r"empty"),
has_entry(patch(temperature, "leftRight"), "type", r"zeroGradient"),
has_entry(patch(temperature, "empty"), "type", r"empty"),
initial_states(CASE / "0/p", 100000.0, 10000.0),
initial_states(CASE / "0/T", 348.308740203735, 278.646992162988),
"equationOfState perfectGas;" in thermo,
abs(numeric_entry(thermo, "molWeight") - 28.96) <= 1e-12,
abs(numeric_entry(thermo, "Cp") - 1004.5) <= 1e-12,
abs(numeric_entry(thermo, "mu")) <= 1e-15,
)
)
def check() -> bool:
final = latest_time()
required = (
ROOT / "build_case.py",
ROOT / "postprocess.py",
ROOT / "summary.txt",
ROOT / "pressure_profile.csv",
CASE / "log.blockMesh",
CASE / "log.checkMesh",
CASE / "log.setFields",
CASE / "log.rhoCentralFoam",
CASE / "log.writeCellCentres",
final / "C",
final / "p",
final / "T",
final / "U",
)
if any(not path.is_file() or path.stat().st_size == 0 for path in required):
return False
if abs(float(final.name) - 0.0005) > 1e-15:
return False
mesh_log = read(CASE / "log.checkMesh")
solve_log = read(CASE / "log.rhoCentralFoam")
if not (
log_finished(CASE / "log.blockMesh")
and "Mesh OK." in mesh_log
and log_finished(CASE / "log.checkMesh")
and log_finished(CASE / "log.setFields")
and log_finished(CASE / "log.writeCellCentres")
and "Time = 0.0005" in solve_log
and log_finished(CASE / "log.rhoCentralFoam")
):
return False
mesh_check = subprocess.run(
[
"bash",
"--noprofile",
"--norc",
"-c",
"trap - CHLD; . /opt/openfoam11/etc/bashrc && checkMesh -case /home/user/Desktop/shock_tube",
],
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
temperature = field(final / "T", "scalar")
velocity = field(final / "U", "vector")
if not (
len(temperature) == len(velocity) == 1000
and all(value > 0 for value in temperature)
):
return False
average, profile = pressure_profile(final)
with (ROOT / "pressure_profile.csv").open(encoding="utf-8", newline="") as stream:
rows = list(csv.DictReader(stream))
if len(rows) != len(profile) or set(rows[0]) != {"x_m", "p_pa"}:
return False
for row, expected in zip(rows, profile):
actual = (float(row["x_m"]), float(row["p_pa"]))
if any(not close(left, right, 5e-7) for left, right in zip(actual, expected)):
return False
lines = [line.strip() for line in read(ROOT / "summary.txt").splitlines() if line.strip()]
if len(lines) != 1:
return False
reported = float(lines[0])
return math.isfinite(reported) and abs(reported - average) <= 5e-7
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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