Critical flow rate for flow regime change

Input(s)

$\mathrm{V}_{\mathrm{c}}$: Critical Velocity $(\mathrm{ft} / \mathrm{s})$

$\mathrm{D}_{\mathrm{i}}$: Integral Diameter of Pipe (in.)

Output(s)

Qc: Critical Flow Rate $(\mathrm{gpm})$

Formula(s)

$$ \mathrm{Q}_{\mathrm{c}}=2.448 * \mathrm{~V}_{\mathrm{c}} *\left(\mathrm{D}_{\mathrm{i}}^{2}\right) $$

Reference(s)

Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015. Houston, Texas, Page: 220.