Argentum Solutions, Inc.

    Sterling guidance on corrosion and materials degradation


 

Potential-pH Diagrams
THERMEXPERT - Potential-pH diagram generator

Intelligent Tools

POLEXPERT - Polarization Scan Artificial Neural Network Expert System

SEQEXPERT - Sequential Immersion Test Artificial Neural Network Expert System

CYLEXPERT - Rotating Cylinder Electrode Intelligent Rotation Rate Calculator

Corrosion Calculator

Corrosion Rate Calculator

Corrosion Economics Estimator

FINCALCULATOR - Corrosion Economic Calculator





TUTORIAL ON CYLEXPERTTM AND THE ROTATING CYLINDER ELECTRODE

David C. Silverman


Table of Contents

Introduction-What is CYLEXPERT?
Overview of the Experimental Technique
Using CYLEXPERT-a step-by-step procedure
Hydrodynamics of a Smooth Cylinder
  1. Boundary Layer
  2. Mass Transfer Correlations
  3. Assessing Mass Transfer Control
         Relating Velocities Among Geometries
Effect of Surface Roughness
Wall Shear Stress vs. Mass Transfer
CYLEXPERT (The Intelligent Experimental Design Tool)
List of Symbols



CYLEXPERT (The Intelligent Experimental Design Tool)



CYLEXPERT the estimation tool tied to an Expert System was developed on the assumption that under the appropriate conditions mass transfer induced flow effects in one geometrical configuration such as a pipe can be modeled by flow in the rotating cylinder electrode. Such modeling could enable flow affected corrosion in the field to be examined in the laboratory. The background and conditions for using this rotating cylinder electrode tool are presented in more detail in this tutorial and when you enter this tool. In summary this interactive tool provides an estimate of the range of operating rotation rates within which your rotating cylinder electrode might have the best chance of modeling the mass transfer affected corrosion mechanism in your field configuration. Note that the calculated rotation rate range may be outside of the operating range of your rotating cylinder electrode apparatus.






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David C. Silverman, Ph.D. - Primary Consultant
E-Mail:     dcsilverman@argentumsolutions.com
Phone:     314-576-3586
Fax:         314-754-9825
Address:   The Argentum House
                14314 Strawbridge Ct.
                Chesterfield, MO 63017