Battery CFD Simulation, MSMD and NTGK Models, ANSYS Fluent CFD Training
$272.00 Student Discount
- The current CFD project simulates the temperature distribution of a Battery via ANSYS Fluent software.
- We have designed the geometry using ANSYS Design modeler software and created the mesh on this geometry using ANSYS meshing software.
- The mesh type is Unstructured with 200,848 cells.
- MSMD (Multi-Scale Multi physics Battery) and NTGK (Newman, Tiedemann, Gu, and Kim) Models are used to analyze the current Unsteady problem.
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The simulation is done on a battery that is based on Sony’s NP-FG1 lithium-ion commercial battery, which is widely used in all kinds of cameras.
The simulation is performed using the MSMD model and the NTGK method with ANSYS Fluent software. Its characteristics, including state of charge and temperature distribution on the body and voltage distribution, etc., have been checked to get a correct view of the performance of this battery.
The present model is designed in three dimensions using Design Modeler software. The geometry used is produced based on the dimensions of the NP-FG1 battery and includes three parts the negative and positive tab and the battery cell. Positive and negative batteries are considered passive, and battery cells as active cells in the simulation.
We carry out the model’s meshing using ANSYS Meshing software, and the mesh type is unstructured. The element number is 200,848.
Methodology: Battery CFD Simulation with MSMD and NTGK Models
Given the important role of a battery in electric and/or hybrid electric vehicles, several models have been proposed to simulate the Transient behavior of the rechargeable battery. These models vary in complexity from a zero-dimension resistor-capacitor to a multi-dimension potential current distribution. The general model available in the software is known as MSMD (Multi-Scale Multi physics Battery) Model.
The NTGK model is set up by a curve fitting the experimental data. And this model is used to obtain the total heat from an electrochemical reaction and predict the temperature distribution of the battery cell.
The simulation results, as seen above, show that the temperature reaches equilibrium at 308 degrees and the middle of the battery body is warmer than other parts of the battery. The battery charging time is about 25 minutes and supplies 3.6 volts.