Fluid Transit Speed

The Fluid Transit Speed calculator compute the velocity (FTS) of the   Pipe Flow  fluid through a uniformed sized (diameter) conduit based on the volumetric flow rate.

INSTRUCTIONS: Choose your preferred length and flow-rate units (e.g. inches and gallons per minute) and enter the following:

• (d) Inner Diameter of Conduit or Pipe
• (fR) Volumetric Flow Rate of Fluid going through the pipe (e.g. 2.2 gallons per minute)

The Fluid Transit Speed calculator returns the transit velocity (FTS) in miles per hour (mph).  However, this can be automatically converted to other velocity units (e.g. centimeters per second) via the pull-down menu.

To compute the fluid flow-rate based on the transit speed and pipe diameter, CLICK HERE.

The Math

The velocity that a fluid flows through conduit is based on the volumetric flow rate (e.g. gallons per minute) and the inner diameter of the conduit.  The diameter dictate the volume in a single unit (e.g. inch or centimeter) of the pipe or conduit.  The larger the diameter the more slowly the fluid will transit through the pipe.