CIVL 151 Tutotial 1

# CIVL 151 Tutotial 1 - Tutorial1 Tutorial 1 03,March,2009...

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CIVL 151 Fluid mechanics torial Tutorial 1 03, March, 2009

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Problem 1 Calculate the pressure A, B, C and D in Pascals.
Problem 1 1. Find the point where Gage pressure is zero. 2. Point A: . 06 0 AW P γ +×= Therefore, 3. Point B: Pit C .. ( ) . ( ) . 3 06m 98kN/m 588 kPa P = −× = × = 00 6 5 8 8 kPa BW P =+ = 88 kPa P 4. Point C: 5. Point D: . CB PP == 9 P S + . 19 DC W . . 588 19 09 98 = +×× . 22 64 kPa =

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Problem 2 a. Find the magnitude and line of action of force on each side of the gate. b. Find the resultant force due to the liquid on both sides of the gate. c. Determine F to open the gate if it is uniform and has mass of 2000kg.
Problem 2 a. Find the magnitude and line of action of force on each side of the gate. Pressure force on inclined plane area: 1. Magnitude = pressure at the centroid × area); 2. Pressure center ‐‐ calculate x , y coordinates of pressure center. Eq. 2.5.8: xy p I xx yA = + Eq. 2.5.10: G p I yy yA = + Where is the origin and x, y axis? (Page 50 in the textbook) : The intersection of the plane of the area and the free surface is ken as the axis he axis

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CIVL 151 Tutotial 1 - Tutorial1 Tutorial 1 03,March,2009...

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