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Materials

Design

Processes

Units

Formulas

Math
Calculator
This calculator computes the Reynolds Number given the flow characteristics asked for below. It outputs the flow type you can expect (laminar, transitional, or turbulent) based on the Reynolds Number result.

Think of the Characteristic Distance as the distance from the leading edge (where the fluid first makes contact) for flow over a plate, or as the pipe diameter for flow inside a pipe.

Inputs
  Free-stream fluid velocity, V:    
  Characteristic distance (or pipe diameter), D:    
  Fluid density, r:    
  Fluid viscosity (dynamic), m:    
Answers
  Reynolds Number, R:  1.00 × 105  
 
Plate flow is transitioning to turbulent at a distance D from the leading edge.
Pipe flow is fully turbulent in a pipe of diameter D.
Equation Behind the Calculator
The Reynolds Number is found from the equation,

Glossary
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Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

more publications