Fluid mechanics

Fluid Mechanics

• Units and Variables

  • Pascal (Pa) = Newtons per meter squared
  • B - buoyant force, in Newtons
  • ρ - density, in kilograms per cubic meter
  • V - volume, in cubic meters
  • A - area, in square meters
  • v - velocity, in meters per second
  • F - force, in Newtons
  • $P_0=1.013\times {10}^5\text{Pa}$
• $P=\frac{F}{A}$
• $P=P_0+\rho gh$
• $B=Mg$
• $B={\rho }_{\text{fluid}}gV$
• $A_1{v}_1=A_2{v}_2$
• $\frac{V_{\text{fluid}}}{V_{\text{obj}}}=\frac{{\rho }_{\text{obj}}}{{\rho }_{\text{fluid}}}$
• $P+\frac{1}{2}\rho v^2+\rho gy=\text{constant}$