ENGG252

ENGG252

1. 5-Step Problem Solving Method

   • 1. Problem Statement
   • 2. Assumptions
   • 3. Properties, Data, Schematic
   • 4. Analysis/Calculations
   • 5. Verification/Discussion

2. Fluid Properties

   • Density and Specific Gravity
     • SG of 1.0 = 1000 kg/m^3
     • p = m/V
     • Units = kg/m^3
   • Ideal Gases
     • Pv = RT or P = pRTN or PV = mRT
     • P = ABOLUTE Pressure (Pa)
     • R = gas constant (Table A-1)
     • T(K) = T(°C0 + 273.15
     • Density of Ideal Gases
       • P1V1/T1 = P2V2/T2
   • Vapour Pressure and Cavitation
     • Saturation Temperature Tsat
     • Saturation Pressure Psat
   • Energy
     • Flow Energy = P/p + e = h + ke + pe = h + V^2/2 +gz
   • Specific Heat
     • Specific Heat at Constant Volume cv
     • Specific Heat at Constant Pressure cp
   • Coefficient of Compressibility (k)
   • Coefficient of Volume Expansion (B)
   • Viscosity
     • No-Slip Condition
     • Force to Move Plate F = uAV/l
     • Velocity Profile u(y) = Vy/l
       • u = dynamic viscosity (Table 2-3)