Simulating BTMS - Challenge

Simulate the flow through the BTMS model

in this project, we calculated the results of BTMS by using Ansys Workbench 2020 R1

Software used: Ansys Workbench 2020 R1

Mesh type: Auto

Nodes: 28463

Elements: 130476

Energy Density Calculator

There Was 4 battery cell used in the system. The diameter of the cell is 0.02m & the length is 0.056m long.

& the power density obtained 4202.13609 w/m^3 by using an excel calculator.

Fig. Energy Density Calculator

Named Selection

In this, we can create named selection to Inlet, Outlet, Fluid Volume & Solid cells. to our geometry

Element Size

A volumetric heat source to be equal to 30000 W/m^3 and set inlet velocity to 4m/s for the given problem

The below chart shows the change in volume avg. temp chart with respect to different Element Size.

4 mm

6 mm

8 mm

12 mm

from this graph, we can determine the no. of iteration required to convergence is around 250 to 350 iterations.

302.56k,302.21k 302.57k, 302.39k these volume Avg. temp. obtained from 4mm, 6mm, 8mm, 12mm

Results :

4 mm element length gives the finer results with good accuracy.

Fig. velocity flow

Fig. Temp. Flow

Results clearly show that at 4 m/s velocity flow gets the more temp. obtained in the first 2 cells with respect to the last 2 cells. Inlet cells temp. much higher than outlet cell temp.