Question

Wind flows over a tilted roof (45o angle), causing an increase in the pressure on the roof to Po P+ AP. The pressure inside the attic/house is sl Pam. The pressure forces are quite high, so that the viscous part of the total stress tensor (equation 6, chapter 6) is negligible in comparison 1. Write the matrix expressing the total stress tensor for the indoor and outdoor faces of the roof 2. Write the force vectors applied to the indoor and outdoor faces of the roof (using equation 7 of chapter 6) 3. Give the x, y, and z components of the net pressure force vector on the roof p 4. For wind speeds 11 ~ 5 m/s, ΔP ~ 15 Pa. Express the magnitude of the net pressure force on the roof, which has an area of 20x5 m2, in Newtons, and in equivalent mass in kg 0 otm er unit area nooor

Answer 1