Problem 6.016 a fan that can provide air speeds up to 50 m/s is to be used in a low-speed wind tunnel with atmospheric air at 25ºc. if one wishes to use the wind tunnel to study flatplate boundary layer behavior up to reynolds numbers of 108, what is the minimum plate length that should be used? at what distance from the leading edge would transition occur if the critical reynolds number were 5 × 105?

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.