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Water Resources
Fluid mechanics and hydraulics guides for civil engineers covering open channel flow, pipe flow, pump design, flood analysis using HEC-RAS, and irrigation engineering. Resources for students and professionals.
Solved numericalDetermine the specific gravity of a fluid having viscosity 0.05 poise and kinematic viscosity 0.035 stokes.Water Resources · 1 min read
Solved numericalFind the kinematic viscosity of an oil having density 981 kg/m³. The shear stress at a point in oil is 0.2452…Water Resources · 1 min read
Solved numericalThe space between two square flat parallel plates is filled with oil. Each side of the plate is 60 cm. The thi…Water Resources · 2 min read
Solved numericalThe pressure drop in an aeroplane model of size 1/50 of its prototype is 4 N/cm². The model is tested in water…Water Resources · 3 min read
Solved numericalA spillway model is to be built geometrically similar scale of 1/40 across a flume of 50cm width. The prototyp…Water Resources · 3 min read
Solved numericalIn 1:30 model of a spillway, the velocity and discharge are 1.5m/s and 2 m³/s. Find the corresponding velocity…Water Resources · 2 min read
Solved numericalA ship 250m long moves in seawater, whose density is 1030 kg/m³. A 1:125 model of this ship is to be tested in…Water Resources · 3 min read
Solved numericalA pipe of diameter 1.8m is required to transport oil of sp.gr. 0.8 and viscosity 0.04 poise at the rate of 4 m…Water Resources · 3 min read
Solved numericalShow by dimensional analysis that the power P required to operate a test tunnel is given by P=ρL²V³ϕ(μ/ρLV) wh…Water Resources · 3 min read
Solved numericalThe pressure difference (∆P) in a pipe of diameter (D) and length (L) due to viscous flow depends on the veloc…Water Resources · 4 min read
Solved numericalIf the resistance to motion of a sphere through a fluid (R) is a function of the density (ρ), viscosity (µ) of…Water Resources · 4 min read
Solved numericalPower input to a propeller (P) is expressed in terms of density of air (ρ), diameter (D), velocity of the air…Water Resources · 4 min read
Solved numericalAssuming the drag force exerted by a flowing fluid (F) is a function of the density (ρ), viscosity (µ), veloci…Water Resources · 4 min read
Solved numericalUsing Rayleigh’s method, derive an expression for flow through orifice (Q) in terms of density of liquid (ρ),…Water Resources · 3 min read
Solved numericalA steel sphere of 5mm diameter falls in a glycerin at a terminal velocity of 0.05m/s. Assume Stoke’s law…Water Resources · 3 min read
Solved numericalA kite, which may be assumed to be a flat plate and mass 1kg, soars at an angle to the horizontal. The tension…Water Resources · 3 min read
Solved numericalAn aeroplane weighing 22500N has a wing area of 22.5m² and span of 12m. What is the lift coefficient if it tra…Water Resources · 3 min read
Solved numericalDetermine the rate of deceleration that will be experienced by a blunt nosed projectile of drag coefficient 1.…Water Resources · 3 min read