Recent content by LaReina

Homework Statement What cruise velocity should the aircraft fly to maximize the cruise range? Aircraft mass (excluding fuel), m0= 14000kg Mass of fuel, mf = 2500kg Specific fuel consumption of aircraft engine, sfc = 2.8\times10-5 kg/N/s Drag polar, CD = 0.02+0.08CL^2 Planform area of...

a=\sqrt{1.4\times287\times100}=200.448 V=200.448\times0.5=100.224

Thank you so much! :)

Homework Statement An object is flying through the air at M=0.5. The free stream temperature is equal to 180 K. At what speed should the object fly when the temperature is 100 K in order to maintain the same Mach number? (therefore ensuring compressibility effects are the same). What was the...

Hi Chet Thank you for your response. Correct me if I'm wrong but since the convective heat transfer coefficient is negligent would I use R=L/k instead to find the thermal resistance? So Rtotal=((0.14/0.9) x 2) + 0.06/0.032 Rtotal=2.1861 °C/W

Homework Statement The cross section of a wall is shown in the figure below. To reduce the heat flow, an air gap (still air) of 6cm is created between the brick wall layers of 14cm thick, each. The thermal conductivities of the brick wall and the still air are: Kair = 0.032 W/m.K and Kbrick =...