ANSYS Fluent: ECM Battery Model
Here, we explain the simulation of an ECM battery using the ANSYS Fluent Multi-Scale Multi-Dimensional (MSMD) Model. Consider a battery with a cell and positive and negative tabs. It is modeled as an active zone while battery tabs are modeled as passive zones. Chemical reactions only occur in the active zones. To start loading MSMD Model you must use the text command interface. Then the MSMD model is appeared in the tree. Next, we enable the transient solver and energy equation. Then, we enable the MSMD battery model.
In the options tab we can select equivalent circuit and define electrical load type and specify C rate. We set values for initial state of charge and reference capacity based on the experimental date in the model parameters tab . In the conductive zone tab, we specify active zones and in the electric contact tab we select the battery positive and negative tabs. Fluent will automatically apply the necessary voltage and current boundary conditions. Then, we specify passive and active materials and set UDS values. Now after thermal conditions and initializations we can run the simulation.
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