Mechanical APDL Basic Analysis Guide - Ansys

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Chapter 3: Using the Function Tool The convection heat transfer coefficient from a fluid flowing over a flat plate is applied as a function boundary condition, using the correlation for laminar heat transfer coefficient. The figure below shows the flat plate with the applied boundary conditions. Y X = 1 Regime 1 X = 5 Regime 2 X = 10 Constant temperature Convection Boundary Condition The bottom of the plate is fixed at a constant temperature. The top of the plate, where the convection boundary condition is being applied, is split into two regimes: Regime 1 is defined for X between 1 ≤ X
2. Define the convection boundary condition as a function. Select Utility Menu> Parameters> Functions> Define/Edit to bring up the function editor. The function boundary condition being applied is a multivalued function, its final value being dependent on the X location in the domain. In the Function Editor dialog box, click on the radio button for “Multivalued function based on regime variable” and type xloc as the name of the regime variable in the text entry box. The name xloc appears as the name of the regime variable. To define xloc, select “X” from the drop down box on the lower half of the dialog box. Your dialog box should look like this: 3. Define the equations for the heat transfer coefficient in the two regimes. Click on the Regime 1 tab. Under this tab, you will define the equation for the first regime, 1 ≤ X ≤ 5. Type “1” and “5” in the Regime 1 Limits text entry boxes. 4. For the sake of convenience, define those expressions in the equations that you will use more than once or that are part of a very long equation, and store them in memory. In this example, expressions for the Reynold's number and Prandtl number are used repeatedly in both equations. They are good examples of expressions that can be stored and used throughout the function editor, in all regimes. To store the Reynold's number, fill in the Result box as shown below. Select the primary variables DENS, X, and VISC (shown in {brackets}) from the drop down list on the lower half of the dialog box. Use the keypad to insert the math functions such as * and /. Your dialog box should look like this: Click on STO, then on M0 on the number pad to store the expression in memory location 0. Release 13.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates. 3.5. Function Tool Example 81
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ANSYS Mechanical APDL Basic Analysi
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Table of Contents 1. Getting Starte
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2.8.4.3. Define Material Properties
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7.2.1.6. Particle Flow and Charged
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10. Getting Started with Graphics .
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13.2.4.1.Turning Load Symbols and C
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20.8. Reviewing Contents of Binary
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List of Tables 2.1. DOF Constraints
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Chapter 1: Getting Started with ANS
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shown below define two element type
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You can choose constant, isotropic,
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You can save linear material proper
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Figure 1.4 Material Model Interface
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Figure 1.7 Data Input Dialog Box -
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The first example below is intended
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9. Click on OK. The dialog box clos
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1.1.4.9. Reading a Material Library
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If you are performing a static or f
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Chapter 2: Loading The primary obje
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Figure 2.2 Transient Load History C
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The arc-length method is an advance
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• Transferred solid loads will re
Page 45 and 46: Note If the node rotation angles th
Page 47 and 48: Figure 2.7 Scaling Temperature Cons
Page 49 and 50: Below are examples of some of the G
Page 51 and 52: Utility Menu> List> Loads> Surface>
Page 53 and 54: Figure 2.9 Example of Surface Load
Page 55 and 56: the shell, and 270° to 360° for t
Page 57 and 58: Below are examples of some of the G
Page 59 and 60: Figure 2.15 Transfers to BFK Loads
Page 61 and 62: CASE C: At least one BFV, BFA, or B
Page 63 and 64: A handy way to specify density so t
Page 65 and 66: For more information, see Initial S
Page 67 and 68: Boundary Condition Heat Flux Film C
Page 69 and 70: This problem consists of a thermal-
Page 71 and 72: 2.6. Specifying Load Step Options A
Page 73 and 74: - All loads changed in later load s
Page 75 and 76: Main Menu> Preprocessor> Loads> Loa
Page 77 and 78: Command GUI Menu Paths Main Menu> S
Page 79 and 80: ! Load Step 1: D, ... ! Loads SF, .
Page 81 and 82: Modeling> Create> Elements> Auto Nu
Page 83 and 84: Figure 2.22 Pretension Section Samp
Page 85 and 86: cylind,0.35,1, 0.75,1, 0,180 wpstyl
Page 87 and 88: 11. Select Utility Menu> PlotCtrls>
Page 89 and 90: 24. Select Utility Menu> Plot> Comp
Page 91 and 92: Chapter 3: Using the Function Tool
Page 93 and 94: Hint: A common error is a divide-by
Page 95: 3.3. Using the Function Loader When
Page 99 and 100: 7. Optional: Enter comments for thi
Page 101 and 102: 3.6.1. Graphing a Function From the
Page 103 and 104: Chapter 4: Initial State The term i
Page 105 and 106: inis,defi,,,1,,100,200,150 inis,def
Page 107 and 108: applies an equal stress of SX = 100
Page 109 and 110: 4.7.2. Example: Initial Stress Prob
Page 111 and 112: inis,defi,all,all,all,all,0.1,,, in
Page 113 and 114: Chapter 5: Solution In the solution
Page 115 and 116: Solver Typical Applications * In to
Page 117 and 118: used. Running the distributed spars
Page 119 and 120: With all iterative solvers, be part
Page 121 and 122: 5.3.3. Disk Space (I/O) and Postpro
Page 123 and 124: If your analysis is either static o
Page 125 and 126: Note Whether you make changes to on
Page 127 and 128: Figure 5.2 PGR File Options From th
Page 129 and 130: GUI: Main Menu> Solution> Current L
Page 131 and 132: Figure 5.3 Examples of Time-Varying
Page 133 and 134: Requirements for Performing an Anal
Page 135 and 136: *dim,temtbl,table,4,1,,time ! Defin
Page 137 and 138: 5.9.1.1.1. Multiframe Restart Limit
Page 139 and 140: prnsol finish 5.9.2. VT Accelerator
Page 141 and 142: 5.12. Stopping Solution After Matri
Page 143 and 144: Chapter 6: An Overview of Postproce
Page 145 and 146: each element. Derived data are also
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Chapter 7: The General Postprocesso
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Although not required for postproce
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The ETABLE command documentation li
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• Path plots • Reaction force d
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The PLETAB command contours data st
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PLDISP,1 ! Deformed shape superimpo
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7.2.1.6. Particle Flow and Charged
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• Particle flow traces occasional
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The surfaces you create fall into t
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You can opt to archive all defined
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19 41.811 51.777 .00000E+00 -66.760
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Sample PRETAB and SSUM Output *****
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7.2.5. Mapping Results onto a Path
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Command(s): PDEF GUI: Main Menu> Ge
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To retrieve path information from a
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7.2.6. Estimating Solution Error On
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Write Results - You can use the dat
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NOTE: When you append data to your
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EMF - Windows Enhanced Metafile For
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Figure 7.20 The PGR File Options Di
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7.4.8. Comparing Nodal Solutions Fr
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the effect of the rigid body rotati
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The SADD command (Main Menu> Genera
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To view correct mid-surface results
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To get usable results combine the r
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7.4.4. Mapping Results onto a Diffe
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• EMF (Main Menu> General Postpro
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7.4.8.1. Matching the Nodes The Mec
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7.4.8. Comparing Nodal Solutions Fr
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Chapter 8: The Time-History Postpro
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enables the alternate selections sh
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1. Click on the Add Data button. Re
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APPEND Appends data to previously s
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!derivative of variable 2 with resp
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The above command assumes that you
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When plotting complex data such as
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Sample Output from EXTREM time-hist
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5. Select the variables to be opera
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RESP requires two previously define
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Chapter 9: Selecting and Components
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Note Crossover commands for selecti
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would put UX and UZ constraints on
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The Command Reference describes the
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Chapter 10: Getting Started with Gr
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Remote Network Access Hidden Line R
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10.4.1. Adjusting Input Focus To en
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• If the environment variable SB_
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10.5.5. Erasing the Current Display
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Chapter 11: General Graphics Specif
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11.3.1. Changing the Viewing Direct
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11.4. Controlling Miscellaneous Tex
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11.4.3. Controlling the Location of
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Chapter 12: PowerGraphics Two metho
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The subgrid approach affects both t
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Chapter 13: Creating Geometry Displ
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Figure 13.1 Element Plot of SOLID65
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13.2.1.12. Vector Versus Raster Mod
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Figure 13.2 Create Best Quality Ima
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13.2.3.2. Choosing a Format for the
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Chapter 14: Creating Geometric Resu
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Figure 14.2 A Typical ANSYS Results
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• Changing the contour interval.
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14.5. Isosurface Techniques Isosurf
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Chapter 15: Creating Graphs If you
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Establishing separate Y-axis scales
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15.2.3.5. Defining the TIME (or, Fo
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Chapter 16: Annotation A common ste
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16.3. 3-D Annotation 3-D text and g
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Chapter 17: Animation Animation is
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• ANMODE (Utility Menu> PlotCtrls
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Figure 17.2 The Animation Controlle
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Note If you are doing animation fro
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Chapter 18: External Graphics Besid
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18.1.4. Exporting Graphics in UNIX
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Note The commands discussed in this
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18.3.6. Editing the Neutral Graphic
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Chapter 19: The Report Generator Th
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2. Specify a caption for the captur
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19.4.1.1. Creating a Custom Table I
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Table ID 46 47 48 Description Compo
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Button or Field DYNAMIC DATA REPORT
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The HTML tag to begin JavaScript co
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listingName A unique listing name a
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Chapter 20: File Management and Fil
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20.4. Text Versus Binary Files Depe
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Identifier ELEM EMAT ERR ESAV FATG
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20.4.3. File Compression Many file
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You can also redirect graphics outp
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Chapter 21: Memory Management and C
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21.3.3. Changing Database Space Fro
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Figure 21.4 Dividing Work Space ANS
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NUM_BUFR is the number of buffers p
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een chosen for efficient running of
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Index Symbols 3-D graphics devices,
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path plots, 142 POST26 graphs, 200
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fatigue graphs, 257 files, 277 focu
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material model interface, 8 materia
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multiframe, 117 restarting an analy
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WINDOW command, 227 Windows graphic
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