Combustion in Pellets packed with Core-Shell Structured Intermetallic Particles

This program solves the PDEs governing flame propagation in a pellet packed with energetic intermetallic particles. The particles of concern are nickel-coated aluminium particles. The reaction kinetics for the combustion of these particles is assumed to be dominated by intermetallic diffusion. The pellet-scale heat equation is coupled to particle-level species diffusion equations and solved using an innovative quasi-implicit scheme. The physico-chemical process is represented in the following figure.

More details are available in the article -

Garai, S., & Sundaram, D. S., A Quasi-Implicit and Coupled Multiscale Scheme for Simulating Combustion of Pellets of Core-Shell Structured Intermetallic Particles. Combustion and Flame 250 (2023) 112650. DOI:10.1016/j.combustflame.2023.112650

Compiling the code

CMake is used to compile the present code. After cloning the repository, open a terminal in the directory where the code is present

mkdir build bin
cd build
cmake -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ ..
cmake --build .

You can chose your preferred compilers in place of gcc and g++.

Running the code

Majority of thermo-physical data that the code requires as input is present in the data directory. Further, organisation of data in that directory is present in its own readme file.

After compilation, the bin directory will contain all the executables. To run the pellet flame propagation code, simply execute

mkdir solutions
bin/PelletFlamePropagationEXE

from a directory where the data and solutions directories is accessible. The temperature profile will be saved in a directory inside the solutions directory.

To see the available command line options like particle volume fractions of pellet etc., run

bin/PelletFlamePropagationEXE -help

The output should be generated as follows

Flame Propagation in a pellet packed with energetic intermetallic core-shell particles.

USAGE: Pellet-Flame-Propagation [OPTIONS]

OPTIONS:

-h, -help, --help, --usage   Display usage instructions.

-ignL ARG                    Set Initial Ignition Length Fraction of Pellet to
                             ARG.

-ignT ARG                    Set Initial Pellet Ignition Temperature to ARG K.

-phi ARG                     Set Particle Volume Fraction of Pellet to ARG.

EXAMPLES:

Pellet-Flame-Propagation -phi 0.68

Developed by Souritra Garai, 2021-23.