Convective mass transfer for turbulent flow (acidizing)
Input(s)
DA: Diffusion Coefficient of Component A (cm2/s)
DE : Effective Diffusion Coefficient of Component A (cm2/s)
dca/dY : Concentration Gradient (mol/cm4)
ca : Concentration of Flowing Acid (mol/cm3)
<ca> : Average Concentration of Flowing Acid (mol/cm3)
<ca(w)> : Average Concentration of Flowing Acid (mol/cm3)
VN : Fluid Velocity Normal to the Surface (cm/s)
⟨VN⟩ : Average Fluid Velocity Normal to the Surface (cm/s)
Kg : Effective Mass Transfer Coefficient (cm/s)
Output(s)
Ua,y: Diffusion Flux of a Component A in Y direction (mol/cm2 s)
⟨Ua,y⟩ : Average Diffusion Flux of a Component A in Y direction (mol/cm2 s)
Formula(s)
<Ua,y>=−DA∂Yd<ca>+<caVN><Ua,y>=−DEdYd<ca>+<ca><VN><Ua,y>=Kg[<ca>−<ca(w)>]+<ca><VN>Reference(s)
Williams, B. B., Gidley, J. L., & Schechter, R. S. (1979). Acidizing fundamentals. Henry L. Doherty Memorial Fund of AIME, Society of Petroleum Engineers of AIME, Page 23.