Choke discharge coefficient
Input(s)
d: Upstream Pipe Diameter (in.)
\(d_{c}\) : Choke Diameter (in.)
\(N_{R}\) : Reynold's Number based on \(\mathrm{d}_{\mathrm{c}}\) (dimensionless)
Output(s)
\(C_{d}\): Choke Discharge Coefficient (dimensionless)
Formula(s)
\[
C_{d}=\left(\frac{d_{c}}{d}\right)+\left(\frac{0.3167}{\left(\frac{d_{c}}{d}\right)^{0.6}}\right)+0.025 *\left(\log \left(N_{R}\right)-4\right)
\]
Reference(s)
Boyun, G., William, C., & Ali Ghalambor, G. (2007). Petroleum Production Engineering: A Computer-Assisted Approach, Page: 5/60.