| |
| 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()) |
|
|
