Nội dung text 5.4 Forces acting on fluid -Dimensionless numbers.pdf
Types of Forces acting on a moving fluid Gravity force (Fg ) • It is equal to the product of mass and acceleration due to gravity of the flowing fluid. • It is present in case of open surface flow Pressure force (Fp ) It is equal to the product of pressure intensity and cross-sectional area of the flowing fluid. It is present in case of pipe-flow.