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calculate the maximum average velocity in a 2-cm-diameter pipe for a laminar ow using a critical reynolds number of
a farmer needs to provide a volume of 500 l every minute of 20-c water from a lake through a wrought iron pipe a
a pressure drop of 200 kpa is measured over a 400-m length of 8-cm-diameter horizontal cast iron pipe that transports
a 4-mm-diameter horizontal 40-m-long pipe is attached to a reservoir containing 20-c water the surface of the water in
a laminar boundary layer of 20-c atmospheric air moving at 2 ms exists on one side of a 2-m-wide 3-m-long at plate
atmospheric air blows in toward the shore at a beach in florida it is assumed that a boundary layer begins to develop
water at 20-c ows over a 3-m long and 2-m wide at plate at 3 ms assume a turbulent ow from the leading edge a trip wire
1 a streamline in 20-c water is 2 mm from a at plate at the leading edge using the parabolic velocity prole of sec 853
assume an actual ow can be modeled with the ow of prob 849 on the front half of the cylinder and that the pressure on
superimpose a uniform ow v frac14 10i ms a doublet m frac14 40 m3s and a vortex locate any stagnation points and nd the
1 a uniform ow v frac14 20i ms is superimposed on a source of strength 20p m2s and a sink of equal strength located at
superimpose a uniform ow parallel to thenbspx-axis of 10 ms and a source at the origin of strength qnbspfrac14 10p m2sa
show that the ow represented by c frac14 10 lnethx2nbspthornnbspy2thorn m2s is an incompressible ow alsoa find the
sketch the ow eld around an airfoil that has stalled show the boundary layers the separated region and the wakeestimate
a 40-cm-diameter sphere is released from rest under water if it weighs 380 n in air what is its initial acceleration
1 what drag force acts on a 76-cm-diameter sphere towed 2 m below the surface of water at 20 ms2 a 22-m-long hydrofoil
a 10-c wind blows over 6-mm-diameter high-tension wires determine the range of velocities over which vortex shedding
a blue spruce pine tree has the shape of a triangle which is 15 cm off the ground the triangle has a maximum diameter
estimate the speed of fall of a 6-ft man with arms and legs outstretched make reasonable assumptions now give the man a
estimate the fuel savings for one year on a semitruck that travels 300 000 mi if fuel costs 250gal if the truck
a 20-cm-diameter smooth sphere is rigged with a strain gauge calibrated to measure the force on the sphere estimate the
show that the ow represented by f frac14 10rnbspcos y thorn 40 lnnbsprnbspm2s is an incompressible ow alsoa find the
a pitot probe is used to measure the pressure in a supersonic pipe ow review solved problem 96 if the pressure in the