Consider first water and then sae 10w lubricating oil flowing at 40 degree c in a 6 mm diameter tube. if the maximum reynolds number for laminar flow is 2300, determine the maximum flow rate possible and the corresponding pressure gradient, dp/dx, for each fluid while maintaining laminar flow (h_2o: 7.10 times 10^-6 m%3/s, -145 n/m^3)

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg. k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m. k