| |
| 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 / "heat" |
|
|
|
|
| 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 completed_log(path: Path, required_fragment: str | None = None) -> bool: |
| text = read(path) |
| lines = [line.strip() for line in text.splitlines() if line.strip()] |
| return ( |
| bool(lines) |
| and lines[-1] == "End" |
| and "FOAM FATAL" not in text |
| and (required_fragment is None or required_fragment in text) |
| ) |
|
|
|
|
| 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 nearest_cell(centres: list[tuple[float, float, float]], x: float, y: float) -> int: |
| return min( |
| range(len(centres)), |
| key=lambda index: ( |
| (centres[index][0] - x) ** 2 + (centres[index][1] - y) ** 2, |
| centres[index][0], |
| centres[index][1], |
| centres[index][2], |
| ), |
| ) |
|
|
|
|
| def check_case() -> bool: |
| mesh = read(CASE / "system/blockMeshDict") |
| initial = read(CASE / "0/T") |
| physical = read(CASE / "constant/physicalProperties") |
| control = read(CASE / "system/controlDict") |
| schemes = read(CASE / "system/fvSchemes") |
| return all( |
| ( |
| "(1 0.5 0)" in mesh, |
| "(200 20 1)" in mesh, |
| has_entry(named_block(mesh, "hot"), "type", r"wall"), |
| face_count(named_block(mesh, "hot")) == 1, |
| has_entry(named_block(mesh, "cold"), "type", r"wall"), |
| face_count(named_block(mesh, "cold")) == 1, |
| has_entry(named_block(mesh, "adiabatic"), "type", r"wall"), |
| face_count(named_block(mesh, "adiabatic")) == 2, |
| has_entry(named_block(mesh, "frontAndBack"), "type", r"empty"), |
| face_count(named_block(mesh, "frontAndBack")) == 2, |
| re.search(r"\binternalField\s+uniform\s+350(?:\.0+)?\s*;", initial) is not None, |
| has_entry(patch(initial, "hot"), "value", r"uniform\s+400(?:\.0+)?"), |
| has_entry(patch(initial, "cold"), "value", r"uniform\s+300(?:\.0+)?"), |
| has_entry(patch(initial, "adiabatic"), "type", r"zeroGradient"), |
| has_entry(patch(initial, "frontAndBack"), "type", r"empty"), |
| "DT DT [0 2 -1 0 0 0 0] 0.01;" in physical, |
| re.search(r"\bendTime\s+50\s*;", control) is not None, |
| re.search(r"\bdeltaT\s+0\.05\s*;", control) is not None, |
| re.search(r"\bwriteControl\s+runTime\s*;", control) is not None, |
| re.search(r"\bwriteInterval\s+50(?:\.0+)?\s*;", control) is not None, |
| re.search(r"\bwriteFormat\s+ascii\s*;", control) is not None, |
| has_entry(named_block(schemes, "ddtSchemes"), "default", r"Euler"), |
| "laplacian(DT,T) Gauss linear corrected;" in schemes, |
| ) |
| ) |
|
|
|
|
| def check() -> bool: |
| required = ( |
| ROOT / "build_case.py", |
| ROOT / "postprocess.py", |
| ROOT / "summary.txt", |
| ROOT / "temperature_profile.csv", |
| CASE / "log.blockMesh", |
| CASE / "log.laplacianFoam", |
| CASE / "log.cellCentres", |
| CASE / "50/C", |
| CASE / "50/T", |
| ) |
| 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", |
| ("heat", "blockMeshDict", "physicalProperties", "laplacianFoam", "0/T"), |
| ): |
| return False |
| if not python_script_is_valid( |
| ROOT / "postprocess.py", |
| ("heat", "50/C", "50/T", "temperature_profile.csv", "summary.txt"), |
| ): |
| return False |
| if not all( |
| ( |
| completed_log(CASE / "log.blockMesh"), |
| completed_log(CASE / "log.laplacianFoam", "Time = 50"), |
| completed_log(CASE / "log.cellCentres"), |
| ) |
| ): |
| return False |
| mesh_check = subprocess.run( |
| ["bash", "-lc", ". /opt/openfoam11/etc/bashrc && checkMesh -case /home/user/Desktop/heat"], |
| 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 |
|
|
| centres = internal_field(CASE / "50/C", "vector") |
| temperature = internal_field(CASE / "50/T", "scalar") |
| if len(centres) != 4000 or len(temperature) != 4000: |
| return False |
| theoretical = [400.0 - 100.0 * centre[0] for centre in centres] |
| rms_error = math.sqrt(sum((value - theory) ** 2 for value, theory in zip(temperature, theoretical)) / len(temperature)) |
| if rms_error > 1.0: |
| return False |
| target_a = nearest_cell(centres, 0.25, 0.25) |
| target_b = nearest_cell(centres, 0.75, 0.25) |
| if max(abs(centres[target_a][0] - 0.25), abs(centres[target_b][0] - 0.75)) > 0.006: |
| return False |
|
|
| centerline_y = min({centre[1] for centre in centres}, key=lambda value: (abs(value - 0.25), value)) |
| centerline = sorted( |
| (i for i, centre in enumerate(centres) if abs(centre[1] - centerline_y) < 1e-9), |
| key=lambda i: centres[i][0], |
| ) |
| keys = ("x_m", "temperature_K", "linear_theory_K") |
| with (ROOT / "temperature_profile.csv").open(encoding="utf-8", newline="") as stream: |
| rows = list(csv.DictReader(stream)) |
| if len(rows) != 200 or set(rows[0]) != set(keys): |
| return False |
| expected_rows = [(centres[i][0], temperature[i], theoretical[i]) for i in centerline] |
| for row, expected in zip(rows, expected_rows): |
| 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 = [item.strip() for item in read(ROOT / "summary.txt").strip().split(",")] |
| if len(values) != 2: |
| return False |
| reported = tuple(float(value) for value in values) |
| expected = (temperature[target_a], temperature[target_b]) |
| 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()) |
|
|
