Download PDF by Zoeb Hussian, Zulkifly Abdullah, Zanial Alimuddin: Basic Fluid Mechanics and Hydraulic Machines

By Zoeb Hussian, Zulkifly Abdullah, Zanial Alimuddin

ISBN-10: 1420095145

ISBN-13: 9781420095142

Following a concise evaluate of fluid mechanics educated via quite a few engineering purposes and examples, this reference offers and analyzes significant varieties of fluid equipment and the main sessions of generators, in addition to pump know-how. It deals execs and scholars in hydraulic engineering with heritage recommendations in addition to functional assurance of recent turbine applied sciences, totally explaining some great benefits of either steam and fuel generators. Description, layout, and operational info for the Pelton, Francis, Propeller, and Kaplan generators are supplied, as are outlines of assorted kinds of strength crops. It offers solved examples, bankruptcy difficulties, and an intensive case study.

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For an incompressible fluid for which the density is constant, integration of equation along the streamline with respect to s, gives P V2 - + + gz = const P 2 This is well-known Bernoullis equation Dividing by 'g' in eq. 16, we get P V2 - + +z=const pg 2g ..... 16) 32 Basic Fluids Mechanics and Hydraulic Machines P y2 - + - + z = const or ..... 17) 2g y The pressure P is the gauge pressure and unit of measurement in SI units is N/m 2 , the P specific weight y is in N/ml, therefore - y is in meters.

2 Scope of Fluid Mechnanics The dimensional analysis deals with the units of measurement in SI units both fundamental and derived units, and non-dimentional quatities. The properties offluids deal with measurement of mass, density, specific weight, specific gravity, compressibility offluids, surface tension, capillary action. The fluid statics deals with fluid pressure, fluid at rest, manometry, hydrostatic forces, buoyancy floation and stability. The fluid kinematics deals with one, two and three-dimensional flows, steady and unsteady flows, Reynold's number, streamlines, streaklines and pathlines.

Rate of change of momentum = = pAY [(Y + 8V) -Y)] pAY. oY ..... 13) Consider all the forces acting to produce an increase in momentum in the direction of motion. • • . 8A WeIght of the element = mg = pg (A + - ) 8s 2 Force due to element in the direction opposing the motion mg cos 0 = 8A pg (A + - ) 8s cos 0 2 where cos 0 8z = - os Fluid Flow • Force due to pressure p in the direction of motion = PA • Force due to pressure (P + op) opposing the motion 31 = (P + op) (A + oA) • Force due to side pressure Ps in the direction of motion PsoA.

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Basic Fluid Mechanics and Hydraulic Machines by Zoeb Hussian, Zulkifly Abdullah, Zanial Alimuddin


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