Pγ+V22g+z=\frac{P}{\gamma}+\frac{V^2}{2g}+z=constant
P=ρghP=\rho gh
Re=VDνRe=\frac{VD}{\nu}
PV=mRTPV=mRT
P=γQHP=\gamma QH
FB=γVF_B=\gamma V
FD=CD12ρV2AF_D=C_D \frac{1}{2} \rho V^2A
τ=μdudy\tau= \mu \frac{du}{dy}