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in the discussion about the viscous terms in the fluid dynamic equations it was mentioned that the reynolds number
1 write the euler equations in the 2d r-theta coordinate system2 the incompressible steady-state 2d momentum equation
a quarter-scale model of the truck in the preceding problem was placed in a wind tunnel if the model is tested at a
the froude number for an open channel flow of velocity u and a depth of h was defined in chapter 5 asa calculate the
a 2-m-wide rectangular weir shown in the figure is controlling the water flow in a 5-m-wide water channel calculate the
a 1-m-long 3-m-wide plate is towed at a velocity of 2 ms in a fluid assuming laminar flow find the boundary-layer
an airplane flies at a speed of 900 kmh at an altitude of 10000 m where rho 0413 kgm3 mu 146 times 10-5 n sm2 t 223
the drag of a football is investigated in a water tunnel with a quarter-scale model and matching the full-scale
the free-stream velocity in the test section during an early morning windtunnel test was 100 kmh and the temperature
the chord of an airplanes thin wing is 2 m and it is flying at 200 kmh using the flat-plate model calculate the
the boundary layer on the bottom of the vehicle is tripped by a stripe of coarse sandpaper and it is turbulent along
the wing of a sail plane is mostly laminar and its wingspan is 8 m if the average chord is 04 m then calculate the
the chord of an airplanes thin wing is 2 m and it is flying at 300 kmh calculate the friction drag for unit widtha
a 4-m-wide road sign oscillates heavily in a 15-kmh crosswind to study the problem a 120-scale model was placed in the
to study a small insects aerodynamics helium was used instead of air in a wind tunnel if flow speed remains the same as
1 the average chord of an airplanes wing is 4 m and it flies at sea level rho 1225 kgm3 mu 178 times 10-5 n sm2 t
several 2-m-wide 4-m-long thin metal plates are towed for an underwater construction assuming the tow vehicle moves at
1 using the sinusoidal shape uue sinpiz2delta z le delta calculate the expression for the boundary-layer thickness
1 calculate the local skin friction and the local drag coefficient for a plate of length l using the previous
a laminar boundary layer develops along a flat plate and its thickness at a particular point is delta 01 m if we
the sinusoidal shape is one of the simplest velocity profiles proposed for the boundary layer suppose we approximate
an airplane tows a 2-m-tall advertising banner at a speed of 160 kmh if the banner is flat and 5 m long then estimate
how thick is the boundary layer at the trailing edge of the banner in the figure of problem 719 also calculate the
a carport is covered by a 20-m long 4-m-wide flat roof its length is parallel to the prevailing wind the boundary layer
1 calculate the displacement and momentum thickness for the preceding velocity profile and compare with the exact