申論題

4. (20%) For a horizontal T through which water (density = 1000 kg/m3) is flowing, the following data are given: Q₁-=0.25 m³/s, Q2=0.1 m³/s, p₁=100 kpa, p₂=70 kpa, p₃=80 kpa, D₁=15 cm, D₂=7 cm, and D₃=15 cm. For these conditions, what external forcein the x-y plane (through the supporting devices) is needed to hold this T in place?