CE6451 FMM Question Papers, Fluid Mechanics Machinery Previous Year Question Papers – MECH 3rd SEM

UNIT II FLOW THROUGH CIRCULAR CONDUITS 8
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 9
Need for dimensional analysis – methods of dimensional analysis – Similitude –types of similitude – Dimensionless parameters- application of dimensionless parameters – Model analysis.
UNIT IV PUMPS 10
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 10
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.
TOTAL: 45 PERIODS