WITH EFFECT FROM THE ACADEMIC YEAR 2012 - 2013
CE 302
FLUID MECHANICS - II
Instruction 4 Periods per week
Duration of University Examination 3 Hours
University Examination 75 Marks
Sessional 25 Marks
UNIT-I
Steady uniform flow through open channels: Descriptions and definitions, difference between pipe flow and channel flow, velocity and pressure distributions in channel cross section, energy and momentum correction coefficients, friction to flow in open channels, uniform flow, Manning’s and Chezy’s formulae, most efficient channel cross-section, specific energy, concept and applications of critical depth.
UNIT-II
Gradually varied flow: Significance of Froude Number, dynamic equation of gradually varied flow, classification of gradually varied flow profiles, computation of flow profiles and characteristics of flow profiles. Hydraulic Jump-Momentum equation for a jump in horizontal rectangular channel, energy dissipation in hydraulic jumps and surges in open channels, elementary surge analysis.
UNIT-III
Unsteady flow in pipes: Water hammer phenomenon, pressure rise due to gradual and sudden valve closure, critical period of the pipeline. Boundary layer-Definition, laminar and turbulent boundary layers, boundary layer growth and separation, Drag and lift forces, Principle of stream lining.
UNIT-IV
Dimensional analysis and models studies: Dimensional analysis as a tool in experimental hydraulics, Buckirigham’s pi-theorem, applications, geometric, Kinematics and dynamic similarity, similarity laws; significance of Reynold’s, Froude and Mach Numbers, Different types of models and their scale ratios.
3 4
UNIT-V
Hydraulic Turbines: Classification, specific speed, unit quantities velocity triangles and principles of design of reaction and impulse turbines, characteristics curves. Impact of jet vanes.
Centrifugal Pumps: Component work done and efficiency, minimum starting speed, Euler head equation, specific speed and characteristics curves of centrifugal pumps.
Suggested Reading:
- 1.Modi, P. N and Seth, S. M., “Fluid Mechanics”, Standard Book House, 2001.
- 2.Mohanty, A. K., Fluid mechanics, PHI, 2000.
- 3.Som, S. K and Biswas, G., Introduction to Fluid Mechanics and Fluid Machines, TMH Publications, 2004.
- 4.Subramanya, K., “1000 Solved Problems in Fluid Mechanics”
Tata McGraw-Hill Publications 2005.
- 5.Street, R. L., Watters, G. Z. and Vennerd, J. K., “Elementary Fluid Mechanics", 7th Edition, John Wiley International Publications, 1996.
Som, S. R, & Biswas, “Introduction to Fluid Mechanics and Fluid Machines”, Tata McGraw Hill, 1998.