| |
| from __future__ import annotations |
|
|
| import ast |
| import csv |
| import math |
| import re |
| import subprocess |
| from pathlib import Path |
|
|
|
|
| ROOT = Path("/home/user/Desktop") |
| CASE = ROOT / "cylinder" |
| 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 python_script_is_valid(path: Path, required_fragments: tuple[str, ...]) -> bool: |
| text = read(path) |
| try: |
| tree = ast.parse(text) |
| except SyntaxError: |
| return False |
| return bool(tree.body) and all(fragment in text for fragment in required_fragments) |
|
|
|
|
| def log_finished(path: Path) -> bool: |
| text = read(path) |
| return "foam fatal" not in text.lower() and text.rstrip().endswith("End") |
|
|
|
|
| def patch(text: str, name: str) -> str: |
| return named_block(named_block(text, "boundaryField"), name) |
|
|
|
|
| def face_count(block: str) -> int: |
| match = re.search(r"\bfaces\s*\((.*?)\)\s*;", block, re.S) |
| return len(re.findall(r"\([^()]+\)", match.group(1))) if match else 0 |
|
|
|
|
| def internal_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_values = all( |
| len(value) == 3 and all(math.isfinite(item) for item in value) |
| for value in values |
| ) |
| elif kind == "scalar": |
| values = [float(value) for value in match.group(2).split()] |
| valid_values = all(math.isfinite(value) for value in values) |
| else: |
| raise ValueError(f"unsupported field kind {kind}") |
| if ( |
| len(values) != int(match.group(1)) |
| or not values |
| or not valid_values |
| 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 coefficient_history() -> list[tuple[float, float, float]]: |
| values = [] |
| header = None |
| for line in read(COEFFICIENTS).splitlines(): |
| stripped = line.strip() |
| if stripped.startswith("# Time"): |
| header = " ".join(stripped.split()) |
| continue |
| 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])) |
| if header != "# Time Cm Cd Cl Cl(f) Cl(r)": |
| raise ValueError("unexpected OpenFOAM 11 forceCoeffs header") |
| return values |
|
|
|
|
| def history_is_complete(history: list[tuple[float, float, float]]) -> bool: |
| if len(history) != 8001: |
| return False |
| return all( |
| close(time, index * 0.0025, 5.0e-10) |
| and math.isfinite(cd) |
| and math.isfinite(cl) |
| for index, (time, cd, cl) in enumerate(history) |
| ) |
|
|
|
|
| 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") |
| schemes = read(CASE / "system/fvSchemes") |
| solution = read(CASE / "system/fvSolution") |
| mesh_boundary = mesh |
| forces = named_block(named_block(control, "functions"), "forces") |
| pimple = named_block(solution, "PIMPLE") |
| return all( |
| ( |
| mesh.count("hex (") == 8, |
| mesh.count("(40 12 1)") == 8, |
| mesh.count("simpleGrading (10 1 1)") == 8, |
| mesh.count("arc ") == 32, |
| face_count(named_block(mesh_boundary, "inlet")) == 4, |
| face_count(named_block(mesh_boundary, "outlet")) == 4, |
| face_count(named_block(mesh_boundary, "cylinder")) == 8, |
| has_entry(named_block(mesh_boundary, "cylinder"), "type", r"wall"), |
| has_entry(named_block(mesh_boundary, "frontAndBack"), "type", r"empty"), |
| "internalField uniform (1 0.01 0);" in velocity, |
| 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, "inlet"), "type", r"zeroGradient"), |
| has_entry(patch(pressure, "outlet"), "type", r"fixedValue"), |
| has_entry(patch(pressure, "outlet"), "value", r"uniform\s+0(?:\.0+)?"), |
| has_entry(patch(pressure, "frontAndBack"), "type", r"empty"), |
| re.search(r"\bnu\s+\[0 2 -1 0 0 0 0\]\s+1e-?3\s*;", physical, re.I) |
| is not None, |
| "simulationType laminar;" in momentum, |
| re.search(r"\bendTime\s+20\s*;", control) is not None, |
| re.search(r"\bdeltaT\s+0\.0025\s*;", control) is not None, |
| re.search(r"\bwriteFormat\s+ascii\s*;", control) is not None, |
| has_entry(named_block(schemes, "divSchemes"), "div(phi,U)", r"bounded\s+Gauss\s+linearUpwind\s+grad\(U\)"), |
| has_entry(pimple, "nOuterCorrectors", r"1"), |
| has_entry(pimple, "nCorrectors", r"2"), |
| has_entry(forces, "type", r"forceCoeffs"), |
| has_entry(forces, "writeControl", r"timeStep"), |
| has_entry(forces, "writeInterval", r"1"), |
| has_entry(forces, "patches", r"\(\s*cylinder\s*\)"), |
| has_entry(forces, "rhoInf", r"1(?:\.0+)?"), |
| has_entry(forces, "magUInf", r"1(?:\.0+)?"), |
| has_entry(forces, "lRef", r"0\.1"), |
| has_entry(forces, "Aref", r"0\.001"), |
| has_entry(forces, "dragDir", r"\(1(?:\.0+)?\s+0(?:\.0+)?\s+0(?:\.0+)?\)"), |
| has_entry(forces, "liftDir", r"\(0(?:\.0+)?\s+1(?:\.0+)?\s+0(?:\.0+)?\)"), |
| ) |
| ) |
|
|
|
|
| def check() -> bool: |
| required = ( |
| ROOT / "build_case.py", |
| ROOT / "postprocess.py", |
| ROOT / "summary.txt", |
| ROOT / "lift_history.csv", |
| CASE / "log.blockMesh", |
| 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 |
| if not python_script_is_valid( |
| ROOT / "build_case.py", |
| ("cylinder", "blockMeshDict", "controlDict", "forceCoeffs", "0/U", "0/p"), |
| ): |
| return False |
| if not python_script_is_valid( |
| ROOT / "postprocess.py", |
| ("forceCoeffs.dat", "lift_history.csv", "summary.txt", "zero_crossings", "cl_rms"), |
| ): |
| return False |
| solve_log = read(CASE / "log.pimpleFoam") |
| if not log_finished(CASE / "log.blockMesh") or not log_finished(CASE / "log.pimpleFoam") or "Time = 20" not in solve_log: |
| return False |
| mesh_check = subprocess.run( |
| ["bash", "-lc", ". /opt/openfoam11/etc/bashrc && checkMesh -case /home/user/Desktop/cylinder"], |
| 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 = internal_field(CASE / "20/U", "vector") |
| pressure = internal_field(CASE / "20/p", "scalar") |
| if not (len(velocity) == len(pressure) == 3840): |
| return False |
|
|
| history = coefficient_history() |
| if not history_is_complete(history): |
| return False |
| window = [row for row in history if 10.0 <= row[0] <= 20.0] |
| cl_mean = sum(row[2] for row in window) / len(window) |
| cl_rms = math.sqrt(sum((row[2] - cl_mean) ** 2 for row in window) / len(window)) |
| zero_crossings = sum( |
| (left[2] - cl_mean) * (right[2] - cl_mean) < 0 |
| for left, right in zip(window, window[1:]) |
| ) |
| cl_max = max(abs(row[2]) for row in window) |
| if not (0.05 < cl_max < 3.0 and cl_rms > 0.05 and zero_crossings >= 5): |
| return False |
|
|
| keys = ("time_s", "cd", "cl") |
| with (ROOT / "lift_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 |
| reported = float(values[0]) |
| return math.isfinite(reported) and abs(reported - cl_max) <= 5.0e-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()) |
|
|
