流體力學專業(yè)詞匯

1、流體力學專業(yè)詞匯 (Vocabulary of Fluid Mechanics )CHAPTER-1acceleration 加速度average velocity 平均速度Bernoulli 伯努力boundary layer 邊界層calculus 微積分coefficient of viscosity 粘性系數(shù)compressible(incompressible) (不)可壓的conservation of mass(momentum, energy) 質(zhì)量(動量,能量)守恒 continuum 連續(xù)介質(zhì)control-volume 控制體density(mass per unit v

2、olume) 密度differential 微分dimension 量剛 尺度dynamics 動力學Euler 歐拉eulerian (lagrangian) method of description歐拉(拉格郎日)觀點，方法field of flow 流場flow pattern 流型（譜）fluid mechanics 流體力學 function 函 數(shù)inertia 慣 性, 慣 量integral 積分kinematics 運動學kinetic (potential, internal) energy 動(勢,內(nèi))能Lagrange 拉格郎日liquid 流體Newtonian f

3、luids 牛頓流體(non)linear (非)線性(non)uniform （非）均勻one-dimensional 一維pathline 跡線 perfect-gas law 理想氣體定律pressure 壓力 壓強Reynolds 雷 諾shear(normal) stress 剪(正)應(yīng)力solution 解答statics 靜力學steady(unsteady) (非)定常strain 應(yīng)變streamline(tube) 流線(管)thermal conductivity 熱傳導(dǎo)thermodynamics 熱力學variable 變量vector 矢量velocity dist

4、ribution 速度分布velocity field 速度場velocity gradient 速度梯度viscous(inviscid) (無)粘性的volume rate of flow 體積流量CHAPTER -2absolute (gage,vacuum) pressure 絕對（表，真空）壓力area moment of inertia 慣性面積矩atmospheric pressure 大氣壓力barometer 氣壓計body force 體力Cartesian rectangular coordinates 直角坐標（系）centroid 質(zhì)心elliptic 橢圓的equi

5、librium 平衡horizontal 水平的hydrostatic 水靜力學，流體靜力學hyperbolic 雙曲線的mercury 水銀moment 矩parabolic 拋物線plane (curved) surface 平（曲）面plate 板pressure center 壓力中心pressure distribution(gradient) 壓力分布（梯度）reservoir 水庫rigid-body 剛體scalar 標量specific weight 比重surface force 表面力vertical 垂直的, 直立的CHAPTER -3Bernoulli equatio

6、n 伯努力方程Boundaries 邊界Conservation of mass 質(zhì)量Control volume 控制體Energy(hydraulic) grade line 能級線Flux 流率Free body 隔離體Heat transfer 熱傳到Imaginary 假想Inlet, outlet 進、出口Integrand 被積函數(shù)Jet flow 射流Linear(Angular)-momentum relation 線（角）動量關(guān)系式Momentum(energy)-flux 動量（能量）流量Net force 合力No slip 無滑移Nozzle 噴嘴Rate of wo

7、rk 功率Reynolds transport theorem 雷諾輸運定理Shaft work 軸功Stagnation enthalpy 制止焓Surroundings 外圍System 體系Time derivative 時間導(dǎo)數(shù)Vector sum 矢量合Venturi tube 文圖里管Volume(mass) flow 體積（質(zhì)量）流量Volume(mass) rate of flow體積（質(zhì)量）流率CHAPTER -4Soomth 平滑Laminar 層流Transition 轉(zhuǎn)捩Roughness 粗糙度Random fluctuations 隨機脈動Reynolds numb

8、er 雷諾數(shù)（Re）Instability 不穩(wěn)定性Breakdown 崩潰Mean value 平均值Drag 阻力Osborne ReynoldsDye filament 染色絲Internal (external) flow 內(nèi)(外)流Cartesian 笛卡坐標Infinitesimal 無限小local acceleration 當?shù)丶铀俣萪ot product 點乘total derivative 全導(dǎo)數(shù)convective acceleration 對流加速度substantial(material) derivative 隨體(物質(zhì))導(dǎo)數(shù)operator 算子partial d

9、ifferential equation 偏微分方程Newtonian fluid 牛頓流體Navier-Stokes Equations N-S方程Second-order 二階Similarity 相似Nondimensionalization 無量綱化Flat-plate boundary layer 平板邊界層Thermal conductivity 熱傳導(dǎo)Heat flow 熱流量Fouriers law 傅立葉定律Couette Flow 庫塔流動Channel 槽道Parallel plates 平行平板Pressure gradient 壓力梯度No-slip condition 無滑移條件Poiseuille flow 伯肖葉流動Parabola 拋物線Wall shear stress 壁面剪應(yīng)力Prandtl 普朗特Karman 卡門Momentum-integral relation 動量積分關(guān)系Momentum thickness 動量厚度Skin-friction coefficient 壁面摩擦系數(shù)Displac