💧 流體力學工具

💧 伯努利壓力計算器Bernoulli Pressure 伯努利壓力計算器。輸入流體速度、高度與壓強，按伯努利方程 p + ½ρv² + ρgh = 常量 求沿流線的壓力變化，用於管道、機翼等流體壓強分析。Bernoulli Pressure - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 體積流量計算器Volume Flow 體積流量計算器。輸入管道截面積與平均流速，按 Q = A·v 求體積流量，用於供水、通風與化工管道的流量核算。Volume Flow - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 動壓計算器Dynamic Pressure 動壓計算器。輸入流體密度與流速，按 q = ½ρv² 求單位體積動能（動壓），用於空氣動力學、風載與伯努利分析的壓力項計算。Dynamic Pressure - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 孔口出流流量計算器Orifice Discharge 孔口出流流量計算器。輸入孔口面積、水頭與流量係數，按薄壁孔口自由出流公式求流量，用於水箱、灌溉與泄流設施的設計核算。Orifice Discharge - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 斯托克斯沉降速度計算器Stokes Settling 斯托克斯沉降速度計算器。輸入顆粒半徑、密度差與流體黏度，求低雷諾數下小顆粒的勻速沉降終端速度，用於懸浮液沉降與水處理設計。Stokes Settling - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 曼寧公式流速計算器Manning Velocity 曼寧公式流速計算器。輸入水力半徑、底坡與糙率係數，按曼寧公式求明渠均勻流平均流速與流量，用於河道、排水溝與渠道水力設計。Manning Velocity - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 毛細上升高度計算器Capillary Rise 毛細上升高度計算器。輸入液體表面張力、接觸角與毛細管半徑，按 Jurin 定律求液體在細管中的上升高度，用於土壤、紙張與微流體中的毛細現象分析。Capillary Rise - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 泊肅葉流量計算器Poiseuille Flow 泊肅葉流量計算器。輸入管徑、壓差與黏度，按泊肅葉定律求圓管層流體積流量，用於微流控、血液流動與潤滑系統的層流分析。Poiseuille Flow - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 流體阻力計算器Drag Force 流體阻力計算器。輸入流體密度、速度、迎風面積與阻力系數，按 F_d = ½ρv²C_dA 求物體所受阻力，用於車輛、飛行器與運動體氣動/水動力分析。Drag Force - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💨 由動力黏度與密度求運動黏度Kinematic Viscosity Calculator - Kinematic Viscosity : Input μ,ρ, Output ν( m ²/ s ) 輸入動力黏度 μ 與流體密度 ρ，按 ν = μ/ρ 計算運動黏度，用於油品、塗料等流變特性標註及雷諾數計算中的黏度參數換算。Kinematic Viscosity Calculator - Kinematic Viscosity : Input μ,ρ, Output ν( m ²/ s ) - free online tool. 🎚️ 由動壓差求流速Pitot Velocity 輸入皮托管測得動壓差 ΔP 與流體密度 ρ，按 v = √(2ΔP/ρ) 計算流體流速，用於風管、水管中藉助畢託管測壓測算實際流量。Pitot Velocity - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. ⚠️ 由壓力與流速求空化數Cavitation Number 輸入當地壓力 p、飽和蒸氣壓 p_v、密度 ρ 與流速 v，求空化數以判斷泵、螺旋槳等水力機械發生空蝕的風險與工況。Cavitation Number - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 🔽 由壓差與截面積求體積流量Venturi Flow Rate 輸入入口/喉部截面積 A1、A2 與壓差 ΔP、流體密度 ρ，按文丘裏公式求體積流量，用於管道流量計選型與流量在線核算。Venturi Flow Rate - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 📉 由局部阻力系數與流速求水頭損失Minor Loss Head 輸入局部阻力系數 K、流速 v 與重力加速度 g，按 h = K·v²/(2g) 計算彎頭、閥門等局部構件引起的水頭損失，用於管路系統阻力彙總與水泵揚程確定。Minor Loss Head - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 📉 由摩擦係數與流速求管道壓降Pressure Drop Darcy 輸入摩擦係數 f、管長 L、管徑 D、密度 ρ 與流速 v，按達西公式求沿程壓降，用於管路水力計算與泵選型能耗評估。Pressure Drop Darcy - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. ⭕ 由流通面積與濕周求水力直徑Hydraulic Diameter 輸入非圓管道的流通截面積 A 與濕周 P，按 D_h = 4A/P 計算等效水力直徑，將矩形、環形等異形截面換算為圓管以進行沿程阻力與水力計算。Hydraulic Diameter - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 由流速、尺度與表面張力求韋伯數Weber Number 輸入密度 ρ、流速 v、特徵長度 L 與表面張力 σ，求韋伯數評估液滴破碎、噴霧與氣泡行為，用於霧化、化工與多相流分析。Weber Number - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. ⚡ 由流速與聲速求馬赫數Mach Number 馬赫數計算器。輸入流速 v 與聲速 c，按 Ma = v/c 求馬赫數，判斷流動為亞聲速、跨聲速或超聲速，用於空氣動力學與噴管設計。Mach Number - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 〰️ 由流速與特徵長度求弗勞德數Froude Number 輸入流速 v、特徵長度 L 與重力加速度 g，按 Fr = v/√(gL) 計算弗勞德數，用於判別明渠水流的緩流/急流狀態及船舶、堰流模型試驗的相似性。Froude Number - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. ⭕ 由表面張力與曲率半徑求球泡內外壓差Laplace Sphere Pressure 輸入表面張力 γ 與氣泡/液滴曲率半徑 R，按 ΔP = 2γ/R 計算內外壓差，用於分析肥皂泡、液滴及肺泡等曲面界面因張力產生的附加壓力。Laplace Sphere Pressure - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 由表面張力與管徑求毛細壓差Capillary Pressure 輸入液體表面張力 γ 與毛細管內徑 D，按 ΔP = 4γ/D 計算毛細壓差，用於分析水在細管中上升、土壤滲流或微流控中由表面張力引起的壓力變化。Capillary Pressure - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 〰️ 由謝才係數、水力半徑與底坡求流速Chezy Velocity 輸入謝才係數 C、水力半徑 R 與渠道底坡 S，按 v = C√(R·S) 計算明渠或管道的均勻流流速，用於排水溝、河道與灌溉渠道的水力設計校核。Chezy Velocity - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 🎚️ 由靜壓與流速求駐點壓力Stagnation Pressure 駐點壓力計算器。輸入靜壓與流速，按 p₀ = p + ½ρv² 求氣流停滯點的總壓，用於皮托管測速、進氣道與風洞試驗的壓力換算。Stagnation Pressure - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 終端速度計算器Terminal Velocity 終端速度計算器。輸入質量、阻力系數、迎風面積與流體密度，求阻力與重力平衡時的勻速下落速度，用於顆粒、雨滴與跳傘運動的下落分析。Terminal Velocity - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 連續性方程計算器Continuity Equation 連續性方程計算器。輸入截面面積與流速，按 A₁v₁ = A₂v₂ 求不可壓縮流體在變截面管道中的流速變化，用於流量守恆與管徑設計。Continuity Equation - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 阿基米德浮力計算器Buoyancy Force 阿基米德浮力計算器。輸入排開流體的密度與體積，按 F = ρgV 求物體所受浮力，適用於船舶、浮標與浸沒物體的受力分析。Buoyancy Force - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 雷諾數計算器Reynolds Number 雷諾數計算器。輸入密度、流速、特徵長度與黏度，求無量綱雷諾數，判斷流動為層流或湍流，用於管道、機翼等流動的 regime 識別。Reynolds Number - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools. 💧 靜水壓力計算器Hydrostatic Pressure 靜水壓力計算器。輸入液體密度、深度與重力加速度，按 p = ρgh 求液體內部由深度產生的壓強，用於水箱、堤壩與潛水設備的壓力設計。Hydrostatic Pressure - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Fluid Mechanics tools.