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A micropolar phase field fracture model is implemented in an open source library FEniCS. This implementation is based on the theoretical study in Suh et al. (2020) in which the resultant phase field model exhibits the consistent micropolar size effect in both elastic and damage regions identifiable via inverse problems for micropolar continua. By leveraging the automatic code generation technique in FEniCS, we provide a documentation of the source code expressed in a language very close to the mathematical expressions without comprising significant efficiency. This combination of generality and interpretability therefore enables us to provide a detailed walk-through that connects the implementation with the regularized damage theory for micropolar materials. By making the source code open source, the paper will provide an efficient development and educational tool for third-party verification and validation, as well as for future development of other higher-order continuum damage models.
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ChemCheck: A Cantera Tool For Debugging Chemical and Syntax Errors In Combustion Models
Detailed kinetic models are widely used in combustion modeling, and their size has been significantly increasing over the past decades. With the increasing size and varied data sources, there is need to detect chemical and syntax errors in the model to prevent the simulation from failure. In this work, we present a new open-source web based tool —ChemCheck, to help identify the incorrect data format, inappropriate pressure-dependent and duplicate reaction rate parameters, visualize the thermodynamic inconsistencies and the violations of collision limit. The main goal of this tool is to help Cantera, an open-source suite of tools for problems involving chemical kinetics, thermodynamics, and transport processes, debug the possible errors during computation, so a workflow about coupling Cantera and ChemCheck to improve a detailed kinetic model is demonstrated.
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- Award ID(s):
- 1931389
- PAR ID:
- 10259944
- Date Published:
- Journal Name:
- 12th U.S. National Combustion Meeting
- Page Range / eLocation ID:
- 2E09
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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