Continuity only: A = Q̇/v, round D = √(4A/π), rectangular height from A and a known width. Does not apply friction, aspect-ratio noise rules, or SMACNA construction details.
無料 · 制限なし · ブラウザで処理
使い方
1Enter volumetric flow (m³/s, L/s, CFM, or gpm if reusing hydronics units).
2Enter mean velocity target in m/s.
3Pick round (diameter) or rectangular (supply one side, get the other).
よくある質問
Are losses included?
No. This is area from Q and v only.
Is the rectangle aspect ratio checked?
No. You must verify noise, installation, and code constraints separately.