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Ex. No: 03 Conduction Heat Transfer Analyses On 2D Flate Plate

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Ex.

NO: 03 CONDUCTION HEAT TRANSFER ANALYSES ON 2D FLATE


PLATE
Problem Specification:
A cold storage room has a wall of 300mm of wood for insulation. Assuming L=500mm
and the thermal conductivity of wood is 0.17W/moC and the inner wall is subject to a
convection heat transfer with the heat transfer co-efficient of 30 W/m2oC and
temperature of -3oC. The outer wall is also subjected to a convective heat transfer with
the heat transfer co-efficient of 11 W/m2oC and the temperature of 25 oC. Assuming the
total system is at the room temperature. Obtain the temperature profile with the system.
AIM:
To find the temperature profile of the given system using ANSYS FLUENT
software.
SOFTWARE USED:
ANSYS FLUENT 13
PROCEDURE:
1. Start ANSYS Workbench by clicking the Windows Start menu, then selecting the
Workbench 13.0 option in the ANSYS 13.0 program group.
Start - All Programs - ANSYS 13.0 - Workbench 13.0
2. This displays the ANSYS Workbench application window, which has the Toolbox
on the left and the Project Schematic to its right. Various supported applications
are listed in the Toolbox and the components of the analysis system will be
displayed in the Project Schematic.
3. Create a new FLUENT fluid flow analysis system by double-clicking the Fluid
Flow (FLUENT) option under Analysis Systems in the Toolbox.
4. Save the project by selecting the Save option under the File menu in ANSYS
workbench.
5. Start ANSYS Design Modeler. In the ANSYS Workbench Project Schematic,
double-click the Geometry cell in the fluid flow analysis system. This displays the
ANSYS DesignModeler application.

6. Set the units in ANSYS DesignModeler as MM.


7. Create the geometry by using sketching and modeling tabs and using the options
like line dimensions etc.
8. Since this geometry is a 2D analysis we must create a plane from the following
option.
CREAT - SURFACE FROM SKETCHES - SELECT THE CLOSED SKETCH
9. Close the DesignModeler.
10. Open the ANSYS Meshing application. In the ANSYS Workbench Project
Schematic, double-click the Mesh cell in the fluid flow analysis system.
11. Create named selections for the geometry boundaries.
This is done by selecting the edge option below the toolbar and selecting the
edges for which you required to give named selections and right click to select
Create Named Selections.
12. Now under Meshing we can select the sizing tab and give appropriate mesh type
and size for the geometry.
13. Now close the meshing application.
14. In the ANSYS Workbench Project Schematic, double-click the Setup cell in the
fluid flow analysis system.
15.A dialog box appears, in which UNCHECK the DOUBLE PRECISION and click
OK. Make sure that S ERIAL is enabled.
16.In General tab select according to the problem given.
17. In Models select the type of model you want to solve according to the problem
description. (i.e- Energy or Momentum etc.. ) Here ENERGY EQUATION.
18. In material tab select the type of material you want to analyze and give the
appropriate properties.
19.In Boundary Condition tab give the boundary conditions as per the problem. B.C
will be specified according to the Named Selections you have created.

20.In Solution Methods tabs, leave the methods as default.


21.In Initialize tab, in Compute From drop up box, select the named selection that
you want to initialize the problem and select INITIALIZE.
22.In RUN CALCULATION, give the Number of Iterations as 300 and click
Calculate.
23.Now after the result is converged, close the Fluent.
24.To get the results from the CFD, select RESULTS from the workbench.
25. Select Contours from Graphics and Animations. Select Temperature from the
dialog box that appears and select the symmetric plane and click Display to get
required result.

RESULT: Thus the Temperature profile of the given system has been drawn using
ANSYS FLUENT 13.

GEOMENTRY:

MESHING:

SOULTION:

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