National Physical Laboratory


The software tool TherMOL has been developed at NPL to model the transient heat or mass transfer through multi-layered and multi-material systems. TherMOL has also been developed for application to inverse modelling problems and adopts optimisation methods and the NPL Grid to reliably determine material and model parameters. Development of inverse modelling software has been highlighted as an important tool for industry to help with obtaining parameters for commercial finite element software, aiding the design of new products and improving efficiency in the manufacturing process.

The current TherMOL 3D software has the capability to model generic 3D geometries constructed of cubic blocks. The software is coded using the Java modelling framework, also developed at NPL, which contains a fully object-oriented structure for model development. The framework uses XML and MatML for data handling and contains a range of GUIs as well as graphical and video output routines. The framework has been used to successfully link TherMOL 3D with the thermodynamic phase change software package MTDATA. TherMOL 3D has also been linked with damage mechanics models to predict cracking in composite laminates subject to transient diffusion.

TherMOL 3D is currently being used to determine thermal parameters of coatings and oxides, such as diffusivity and conductivity, from high temperature measurements made using the laser flash. TherMOL 3D isĀ also being adapted to model transient mass diffusion in biomaterials.

Last Updated: 25 Nov 2016
Created: 12 Oct 2007


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