Outline and Objectives:
 

• Important things to know about ANSYS

 
• Two-dimensional modeling of the Plate using ANSYS

 
• Two-dimensional modeling of heat conduction using ANSYS

Important things to know about ANSYS:
 

• Starting an ANSYS Session in interactive, graphics mode:
  

        ansys -g -j jobname
  
        For other start-up options,  
        see Chapter 3 of Operation Guide.
      
  

• On-line documentations: You can find all on-line hypertext-based documentations by clicking Help - Table of Contents.  A text window will appear to allow you navigate through a selected document.
• Analysis Guides:   give procedures for performing an analysis, i.e., How to build a model, how to apply loads and obtain a solution, how to review the results.
• Commands manual: A list of ANSYS commands (in alphabetical order) and their descriptions of use.
• Element manual: A detailed description of all types of ANSYS elements
• Theory manual: Theoretical descriptions of procedures, elements, and commands
• Operations Guide: nuts and bolts of running ANSYS and using its graphical user interface (GUI)
• Verification manual: Comparing ANSYS numerical solutions with theoretical solutions
• Ansys file types and file formats:
  

  --------------------------------------------------------
  FILE TYPE           FILE NAME          FILE FORMAT
  
  Log file            jobname.log        ASCII
  
  Error file          jobname.err        ASCII
  
  Output file         jobname.out        ASCII
  
  Database file       jobname.db         Binary
  
  Results file:                          Binary
   Solid/Structural   jobname.rst
   Thermal            jobname.rth
   Fluid              jobname.rfl
  
  ------------------------------------------------------
  The log file is the most important file. It keeps a complete log 
    of an ANSYS session (list all commands you execute). You can 
    read the log file, view it while in ANSYS,  edit it, 
    and input it later.
    Note: use ! for comments
  
  To input a log file: FILE - Read input from ... 
  
  The error file lists all the errors and warnings. You may use 
    this to edit your log file.
  
  Output file: 
    containing:
        -- Load summary information, 
        -- mass and moments of inertia of the model
        -- solution summary information 
        -- total CPU time, 
        -- data requested by the OUTPR output control command
            e.g., General Postprocesser - list results - modal -
             - print output
    If you run the solution interactively, the output
    file is actually your screen (window). By doing the following
    before issuing SOLVE, you can divert the output
    to a file instead of the screen:
      File - Switch Output to - File 
  
  Database file: Contains all model information
  
  Results file: contains solution data generated during SOLVE steps
  

• To verify the geometry input graphically:
  

  PlotCtrls - Style - Size and Shape
  Plot - Elements
  

• Reviewing results in POST1 (General postprocessing):
  

  -- graphical display: contour, deformed shape, reaction force..
  
  -- tabular listings (can be saved in the output file)
  

• Graphics functions:
  

  (1) PlotCtrls: changing graphics specifications
       Plot: select graphics action
  
  (2) Replot and Erase:
         Plot - Replot
         PlotCtrls - Erase Options - Erase Screen
  
  (3) Multi-Plotting Techniques
        (a) PlotCtrls - MultiWindow Layout
        (b) PlotCtrls - Multi-Plot Controls
  
  (4) Storing a graphics display on a file:
       PlotCtrls - Redirect Plots - to Graphics File
  

Two-dimensional modeling of the Steel Plate using ANSYS

You can use ANSYS to answer the question:
To what extent is one-D solution adequate?

The two-D solid-element model for the Steel Plate problem: 

Mesh resolution:  32x8, namely 32 elements in X and 8 elements in Y

Objective: (1) Study the effect of external load distribution
           
           (2) Study the effect of different Poisson ratio
     
Model Development (for Poisson ratio=0.3, Load over 1/2 of width):

Two-dimensional modeling of heat conduction using ANSYS

Consider heat conduction in an aluminum plate (12in x 12in x 2in thick or
30.5 cm x 30.5 cm x 5.1 cm) 
subject to the following boundary conditions:
  
  Two edges are heated using thermally bonded electrical resistance strip 
   heaters (assume constant heat flux boundary condition)

  The other two edges are cooled using thermally bonded heat exchanger
   plates supplied with cooling water from a chiller 
   (assume constant temperature boundary condition)

  The bottom face is insulated with glass wool

  The top face is separated from the surroundings by an air gap trapped 
  underneath a glass plate

Assume: T1 = 20 C, T2=30 C, q1 = 10000 W/m^2, q2=15000 W/m^2.
Material properties: conductivity = 200 W/m.k.

Treat this as a 2D heat conduction problem. Solve for temperature 
distribution.

Note that you can perform a full three-D solution with ANSYS and compare that with the 2D results.