A wind tunnel experiment is conducted on a scale model of the Airbus 320 . The wind tunnel speed measuring system is based on the static pressure drop, P, across a contraction in which the crosssectional area falls from AA to AB. Show that the speed at station B, where the area is AB, is given by: VB=2K1PwhereK1=AA2AB2AA2. If AA/AB=8, evaluate K1 and hence also calculate VB given that P is measured as 70mm of water gauge and the air pressure and temperature in the tunnel are 80kN/m2 and 40C respectively. You may assume a constant air density of 1.225kg/m3 in the tunnel. A wind tunnel experiment is conducted on a scale model of the Airbus 320 . The wind tunnel speed measuring system is based on the static pressure drop, P, across a contraction in which the crosssectional area falls from AA to AB. Show that the speed at station B, where the area is AB, is given by: VB=2K1PwhereK1=AA2AB2AA2. If AA/AB=8, evaluate K1 and hence also calculate VB given that P is measured as 70mm of water gauge and the air pressure and temperature in the tunnel are 80kN/m2 and 40C respectively. You may assume a constant air density of 1.225kg/m3 in the tunnel