TFA – Total Flow Area Calculator
Total Flow Area (TFA) Calculator TFA Calculator Total Flow Area & Drilling Hydraulics. Nozzle Sizes (1/32″) + Add – Remove Flow Rate (GPM) Mud Weight (PPG) Bit Size (in) Total Flow Area (TFA) — square inches (in²) Jet Velocity — ft/sec HSI — HP/in² Pressure Drop — psi Impact Force — lbf In the…