CE8394 – NOTES & QP
CE8394 – SYLLABUS
UNIT I FLUID PROPERTIES AND FLOW CHARACTERISTICS
Units and dimensions- Properties of fluids- mass density, specific weight, specific volume, specific gravity, viscosity, compressibility, vapor pressure, surface tension and capillarity. Flow characteristics — concept of control volume — application of continuity equation, energy equation and momentum equation.
UNIT II FLOW THROUGH CIRCULAR CONDUITS
Hydraulic and energy gradient — Laminar flow through circular conduits and circular annuli-Boundary layer concepts — types of boundary layer thickness — Darcy Weisbach equation –friction factor- Moody diagram- commercial pipes- minor losses — Flow through pipes in series and parallel.
UNIT III DIMENSIONAL ANALYSIS
Need for dimensional analysis — methods of dimensional analysis — Similitude –types of similitude — Dimensionless parameters- application of dimensionless parameters — Model analysis.
UNIT IV PUMPS
Impact of jets — Euler?s equation — Theory of roto-dynamic machines — various efficiencies– velocity components at entry and exit of the rotor- velocity triangles — Centrifugal pumps– working principle — work done by the impeller — performance curves — Reciprocating pump- working principle — Rotary pumps –classification.
UNIT V TURBINES
Classification of turbines — heads and efficiencies — velocity triangles. Axial, radial and mixed flow turbines. Pelton wheel, Francis turbine and Kaplan turbines- working principles — work done by water on the runner — draft tube. Specific speed — unit quantities — performance curves for turbines — governing of turbines.