TauFactor

Version 1.424 (813 KB) by Samuel Cooper
App for analysis of image based geometry data in terms of tortuosity factors, volume fractions, surface areas and triple phase boundaries.
5.0
(7)
2K Downloads
Updated 8 Dec 2022

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Please contact the author at sjc08@ic.ac.uk for any questions or if you wish to cite this application in a academic study.
Journal paper available here: http://www.sciencedirect.com/science/article/pii/S2352711016300280
User manual available here: https://sourceforge.net/projects/taufactor/files/?source=navbar
TauFactor is a MatLab application for efficiently calculating the tortuosity factor, as well as volume fractions, surface areas and triple phase boundary densities, from image based microstructural data. The tortuosity factor quantifies the apparent decrease in diffusive transport resulting from convolutions of the flow paths through porous media. TauFactor calculates this value using an over relaxed finite-different approach. This tool provides a fast computational platform applicable to the big datasets (up to 4x10^9 voxels) typical of modern tomography, without requiring high computational power.

Cite As

Samuel Cooper (2026). TauFactor (https://uk.mathworks.com/matlabcentral/fileexchange/57956-taufactor), MATLAB Central File Exchange. Retrieved .

Cooper, S. J., et al. “TauFactor: An Open-Source Application for Calculating Tortuosity Factors from Tomographic Data.” SoftwareX, vol. 5, Elsevier BV, 2016, pp. 203–10, doi:10.1016/j.softx.2016.09.002.

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MATLAB Release Compatibility
Created with R2020b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
1.424

Convergence tuning
1.423

Harm Mean
1.422

Symmetrical cell mode
1.412

Periodic boundaries
Interruptible simulations
Faster solver
Local memory checks
Live flux convergence
1.208.0.0

Speed up
1.203.0.0

Solver implemented in C via mex files
Memory allocation optimised
Diffusivity can by input for each phase or on a per-voxel bases
Frequency domain "diffusion impedance" solver added
1.100.0.0

Update on graph scaling and error reporting
User manual
Version 1.100
User manual link update
1.89.0.0

Font adjustments for mac
1.86.0.0

Commenting and restrucuture
1.83.0.0

Inline operation
1.81.0.0

Inline calling and batch processing
1.79.0.0

Update of Metrics RVA approach.
1.77.0.0

Speed improvement on Metrics (TPB, surface area and volume fraction).
500x500x500 voxels in c. 60 seconds.
1.72.0.0

Optimisation of Metrics RVA:
10^8 voxel in < 1 minute
1.65.0.0

Link to user manual
Email address
Email space
1.10.0.0

Figure scaling for Mac
Nan and inf distinction
Final version submitted with SoftwareX paper
Version submitted to SoftwareX
tif, tiff, TIF and TIFF