Home » Fluid Mechanics »
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 numericalA 10mm ball of relative density 1.2 is suspended from a string, in air flowing at a velocity of 10m/s. Determi…Water Resources · 3 min read
Solved numericalA jet plane which weighs 19620N has a wing area of 25m2. It is flying at a speed of 200km/hr. When the engine…Water Resources · 3 min read
Solved numericalA metallic ball of diameter 5mm drops in a fluid of sp.gr. 0.8 and viscosity 30 poise. The sp.gr. of metallic…Water Resources · 4 min read
Solved numericalA metallic ball of diameter 5mm drops in a fluid of sp.gr. 0.8 and viscosity 30 poise. The sp.gr. of metallic…Water Resources · 4 min read
Solved numericalA metallic sphere of sp.gr. 8.0 falls in an oil of density 800 kg/m³. The diameter of the sphere is 10mm and i…Water Resources · 2 min read
Solved numericalCalculate the weight of a ball of diameter 50mm which is just supported in a vertical air stream which is flow…Water Resources · 2 min read
Solved numericalA kite weighs 0.9N and has an area of 7400 cm². The tension in the kite string is 3.3 N when the string makes…Water Resources · 3 min read
Solved numericalA flat plate 2m×2m moves at 40km/hr in stationary air of density 1.25kg/m³. If the coefficient of drag and lif…Water Resources · 3 min read
Solved numericalFor the velocity profile given below, compute the displacement thickness and momentum thickness: u/U = 3/2 (y/…Water Resources · 3 min read
Solved numericalA flat plate of 2m width and 4m length is kept parallel to air flowing at 5m/s. Determine the length of plate…Water Resources · 3 min read
Solved numericalIf the velocity distribution law in a laminar boundary layer over a flat plate is assumed to be of the form u…Water Resources · 3 min read
Solved numericalA water jet of 20mm diameter moving with a velocity of 5m/s strikes a fixed plate at an angle of 20° to the ho…Water Resources · 3 min read
Solved numericalA 75mm diameter jet of water having a velocity of 25m/s strikes a flat plate, the normal of which is inclined…Water Resources · 3 min read
Solved numericalA jet of water 60 mm in diameter with a velocity of 15m/s strikes a flat plate inclined at an angle of 250 to…Water Resources · 4 min read
Solved numericalA flat plate is struck normally by a jet of water 50mm in diameter with a velocity of 18m/s. Calculate: a) the…Water Resources · 3 min read
Solved numericalA lawn sprinkler with two nozzles 5mm in diameter each at 0.2m and 0.15m radii is connected across a tap capab…Water Resources · 3 min read
Solved numericalA lawn sprinkler shown in the figure has 0.8cm diameter nozzle at the end of a rotating arm and discharges wat…Water Resources · 3 min read
Solved numericalThe lawn sprinkler shown below has nozzles of 5mm diameter and carries a total discharge of 0.20 lps. Determin…Water Resources · 4 min read