Chapter I WHU Introduction 1.1 Some characteristics of fluids 1.2 Dimensions and units 1.4 Fluid Mass and Weight 1.6 Viscosity 1.7 Compressibility of Fluid 1.9 Surface tension 1.10 Forces acting on fluid
WHU Chapter I Introduction 1.1 Some Characteristics of Fluids 1.2 Dimensions and Units 1.4 Fluid Mass and Weight 1.6 Viscosity 1.7 Compressibility of Fluid 1.9 Surface Tension 1.10 Forces acting on fluid
1.1 Some Characteristics of WHU Matter has 3 states: Solid: definite volume, definite shape Liquid: definite volume, no-definite shape Gas: no-definite volume, no-definite shape Fluid: deforms continuously when acted on by shearing stresses of any magnitude
WHU 1.1 Some Characteristics of Fluids Matter has 3 states: Solid: definite volume, definite shape Liquid: definite volume, no-definite shape Gas: no-definite volume, no-definite shape Fluid: deforms continuously when acted on by shearing stresses of any magnitude
Continuum Hypothesis WHU It is considered that fluid is such a continuous medium which consists of many particles. There are no interval between the fluid particles which fill the space occupied by fluid
WHU Continuum Hypothesis It is considered that fluid is such a continuous medium which consists of many particles. There are no interval between the fluid particles which fill the space occupied by fluid
Study object of Hydraulics WHU Study mechanical movement of liquid which give priority to water. Liquid: ODefine volume: imcompressible ONo-define shape: deform or fluidity
WHU Study Object of Hydraulics Study mechanical movement of liquid which give priority to water. Liquid: ●Define volume: imcompressible; ●No-define shape: deform or fluidity
L2 Dimensions and units WHU The system of international units(SD) is used in Hydraulics Dimensions of sl: LL: length; IT: time; M: mass [x]=[LPMRi
WHU 1.2 Dimensions and Units The system of international units (SI) is used in Hydraulics. • Dimensions of SI: [L]: length; [T]: time; [M]: mass [ ] [ ] M x = L T