| FlexPDE 5.1 Help |
| Getting Started |
 | Foreword |
| Installation |
| Starting FlexPDE |
| The Main Menu Bar |
| The File Menu |
| The Controls Menu |
| The Stop Menu |
| The Tool Bar |
| Editing Descriptor Files |
| Domain Review |
| While the Problem Runs |
| When the Problem Finishes |
| Viewing Saved Graphic Files |
| Example Problems |
| Registering FlexPDE |
| The Register Dialog |
| Upgrading Dongles |
| User Guide |
| Foreword |
| Overview |
| What Is FlexPDE? |
| What Can FlexPDE Do? |
| How Does It Do It? |
| Who Can Use FlexPDE? |
| What Does A Script Look Like? |
| What About Boundary Conditions? |
| Basic Usage |
| How Do I Set Up My Problem? |
| Problem Setup Guidelines |
| Notation |
| Variables and Equations |
| Mapping the Domain |
| An Example Problem |
| Generating A Mesh |
| Defining Material Parameters |
| Setting the Boundary Conditions |
| Requesting Graphical Output |
| Putting It All Together |
| Some Common Variations |
| Controlling Accuracy |
| Computing Integrals |
| Reporting Numerical Results |
| Summarizing Numerical Results |
| Parameter Studies Using STAGES |
| Cylindrical Geometry |
| Integrals In Cylindrical Geometry |
| A Cylindrical Example |
| Time Dependence |
| Bad Things To Do In Time Dependent Problems |
| Eigenvalues and Modal Analysis |
| The Eigenvalue Summary |
| Addressing More Difficult Problems |
| Nonlinear Coefficients and Equations |
| Complications Associated with Nonlinear Problems |
| Natural Boundary Conditions |
| Some Typical Cases |
| An Example of a Flux Boundary Condition |
| Discontinuous Variables |
| Contact Resistance |
| Decoupling |
| Using JUMP in problems with many variables |
| Using FlexPDE in One-Dimensional Problems |
| Using FlexPDE in Three-Dimensional Problems |
| The Concept of Extrusion |
| Extrusion Notation in FlexPDE |
| Layering |
| Setting Material Properties by Region and Layer |
| Void Compartments |
| Limited Regions |
| Specifying Plots on Cut Planes |
| The Complete 3D Canister |
| Setting Boundary Conditions in 3D |
| Shaped Layer Interfaces |
| Integrals in Three Dimensions |
| More Advanced Plot Controls |
| Moving Meshes |
| Mesh Balancing |
| The Pulsating Blob |
| Controlling Mesh Density |
| Exporting Data to Other Applications |
| Solving Nonlinear Problems |
| Getting Help |
| Problem Descriptor Reference |
| Foreword |
| Introduction |
| Preparing a Descriptor File |
| File Names and Extensions |
| Problem Descriptor Structure |
| Problem Descriptor Format |
| Case Sensitivity |
| "Include" Files |
| A Simple Example |
| The Elements of a Descriptor |
| Comments |
| Reserved Words and Symbols |
| Separators |
| Literal Strings |
| Numeric Constants |
| Built-in Functions |
| Analytic Functions |
| Non-Analytic Functions |
| Unit Functions |
| String Functions |
| The CONST Function |
| The FIT Function |
| The LUMP Function |
| The RAMP Function |
| The SAVE Function |
| The SUM Function |
| The SWAGE Function |
| The VAL and EVAL functions |
| Boundary Search Functions |
| Operators |
| Arithmetic Operators |
| Relational Operators |
| String Operators |
| Vector Operators |
| Differential Operators |
| Integral Operators |
| Time Integrals |
| Line Integrals |
| 2D Volume Integrals |
| 3D Volume Integrals |
| 2D Surface Integrals |
| 3D Surface Integrals |
| Expressions |
| Repeated Text |
| The Sections of a Descriptor |
| Title |
| Select |
| Mesh Generation Controls |
| Solution Controls |
| Global Graphics Controls |
| Coordinates |
| Variables |
| The THRESHOLD Clause |
| Moving Meshes |
| Global Variables |
| Definitions |
| ARRAY Definitions |
| Parameterized Definitions |
| STAGED Definitions |
| POINT Definitions |
| Data Import Definitions |
| The TABLE Input function |
| The TABLEDEF input statement |
| The SPLINETABLE function |
| TABLE File format |
| The TRANSFER input statement |
| The TRANSFERMESH input statement |
| TRANSFER File format |
| The PASSIVE Modifier |
| Mesh Control Parameters |
| Initial Values |
| Equations |
| Association between Equations, Variables and Boundary Conditions |
| Modal Analysis and Associated Equations |
| Moving Meshes |
| Constraints |
| Extrusion |
| Boundaries |
| Points |
| Boundary Paths |
| Regions |
| Reassigning Regional Parameters |
| Regions in One Dimension |
| Regions in Three Dimensions |
| Regional Parameter Values in 3D |
| Limited Regions in 3D |
| Empty Layers in 3D |
| Excludes |
| Features |
| Ordering Regions |
| Numbering Regions |
| Fillets and Bevels |
| Boundary Conditions |
| Syntax of Boundary Condition Statements |
| Point Boundary Conditions |
| Boundary conditions in 1D |
| Boundary Conditions in 3D |
| Jump Boundaries |
| Periodic Boundaries |
| Fixed Points |
| Front |
| Resolve |
| Time |
| Monitors and Plots |
| Graphics Display and Data Export Specifications |
| Graphic Display Modifiers |
| Controlling the Plot Domain |
| Reports |
| The ERROR Variable |
| Window Tiling |
| Monitors in Steady State Problems |
| Monitors and Plots in Time Dependent Problems |
| Hardcopy |
| Graphics Export |
| Examples |
| Histories |
| Batch Processing |
| Running FlexPDE from the Command Line |
| Technical Notes |
| Natural Boundary Conditions |
| Solving Nonlinear Problems |
| Eigenvalues and Modal Analysis |
| Avoid Discontinuities! |
| Importing DXF Files |
| Exporting Data to Other Applications |
| Extrusions in 3D |
| Applications in Electromagnetics |
| Smoothing Operators in PDE's |
| 3D Mesh Generation in version 4.0 |
| Mesh Density Controls in version 4.0.2 |
| Interpreting Error Estimates |
| Coordinate Scaling |
| Making Movies |
| Converting from Version 4 to Version 5 |
| Sample Problems |
| The Samples Folder |
| Steady-State |
| Chemistry |
| Reaction |
| Electrostatics |
| 3D_Capacitor |
| 3D_Cap_Check |
| Fieldmap |
| Plates |
| Spacecharge |
| Fluids |
| 3d_Flowbox |
| Airfoil |
| Buoyant |
| Flowslab |
| GeoFlow |
| Helix |
| LowVisc |
| Swirl |
| Viscous |
| Groundwater |
| Porous |
| Water |
| Heatflow |
| 3D_Bricks |
| Axysymmetric_Heat |
| HeatBdry |
| Radbdry |
| Radflow |
| Slider |
| Lasers |
| LaserXC |
| Magnetics |
| 3D_Magnetron |
| Magnet_Coil |
| Permanent_Magnet |
| Saturation |
| Misc |
| Minsurf |
| Stress |
| 3D_Bimetal |
| Anisotropic |
| Axisymmetric_Stress |
| BentBar |
| Elasticity |
| FixPlate |
| FreePlate |
| Presstube |
| Tension |
| Time_Dependent |
| Chemistry |
| Chemburn |
| Melting |
| Fluids |
| Black_Oil |
| Buoyantt |
| Heatflow |
| 3D_Bricks_t |
| Float1D |
| Float_Zone |
| Lasers |
| Self_Focus |
| Misc |
| Diffusion |
| Forever |
| Stress |
| Harmonic |
| Vibrate |
| Eigenvalue Problems |
| 3d_Oildrum |
| 3d_Plate |
| Drumhead |
| Shiftguide |
| Vibar |
| Waveguide |
| Miscellaneous Examples |
| 1D |
| Cyl1D |
| Slab1D |
| Sphere1D |
| 3D_Domains |
| Adaptive Surfaces |
| Twoz_import |
| Twoz_surfgen |
| Twoz_Include |
| 3D_Extrusion_Spec |
| 3D_Lenses |
| 3d_Limited_Region |
| 3D_Pinchout |
| 3D_Pyramid |
| 3D_Shell |
| 3D_Sphere |
| 3D_Toggle |
| 3D_Torus |
| 3D_Twist |
| 3D_Void |
| Regional_Surfaces |
| Tabular_Surfaces |
| Accuracy |
| Gaus1D |
| Gaus2D |
| Gaus3D |
| Sine1D |
| Sine2D |
| Sine3D |
| Constraints |
| 3D_Constraint |
| 3D_Surf_Constraint |
| Bdry_Constraint |
| Constraint |
| Discontinuous_Variables |
| 3D_Contact |
| 3D_Contact_Region |
| Thermal_Contact_Resistance |
| Contact_Resistance_Heating |
| Transient_Contact_Resistance_Heating |
| Import-Export |
| 3D_Meshin |
| 3D_Meshout |
| 3D_Surf_Export |
| BuildTable |
| Export |
| Export_Format |
| Export_History |
| Mesh_In |
| Mesh_Out |
| Spline1 |
| SplineTable |
| Table |
| TableDef |
| Transfer_In |
| Transfer_Out |
| Mesh_Control |
| 3D_dimple |
| Bdry_Density |
| Bdry_Spacing |
| Front |
| Mesh_Density |
| Mesh_Spacing |
| Resolve |
| Periodicity |
| 3D_Antiperiodic |
| 3D_XPeriodic |
| 3D_ZPeriodic |
| Antiperiodic |
| Periodaz |
| Periodic |
| Periodic_xy |
| Periodict |
| 3D_Integrals |
| 3D_Ploton |
| ACADsample |
| ArrayRepeat |
| Batch |
| Fillet |
| FitWeight |
| FuncDef |
| Funtest |
| Gridfunc |
| HeaterSSI |
| HeaterTI |
| IfThen |
| Lump |
| PlotTest |
| Polar |
| Printest |
| Repeat |
| Spacetime1 |
| Spacetime2 |
| Spline_Bdry |
| Stage_Geom |
| Stage_VS |
| Stages |
| Sum |
| Surface_Fit |
| Swagetest |
| Tbessel |
| TIntegral |
| Two_Histories |
| UFunTest |
| VFunTest |
| Ordinary Differential Equations |
| LinearODE |
| NonLinODE |
| Moving Meshes |
| 1D_Lagrangian_Shock |
| 2D_Lagrangian_Shock |
| 1D_StretchX |
| 2D_StretchX |
| 2D_StretchXY |
| 2D_Cyl_Piston |
| 2D_Position_Blob |
| 2D_Velocity_Blob |
| 3D_Position_Blob |
| 3D_Velocity_Blob |
| The Backstrom_Books Folder |
| Fields of Physics |
| Deformation and Vibration |
| Waves |
| Fluid Dynamics |
| Release Notes |
| What's New in this Release of FlexPDE? |
| Version 5.1 |
| Version 5.0 |