Chapter 3 - A Walk Through Quickfield: What is QuickField? On GlobalSpec

From Applied Electromagnetics Using QuickField and MATLAB

In This Chapter

What is QuickField?
Basic Organization of QuickField
Specifying Problem Types and Properties
Model Construction
Problem Solving and Post Processing
Electrostatics Simulation
Magnetostatics Simulation

QuickField is a Finite Element Method CAD modeling software that supports a variety of electromagnetic, thermal, and stress analysis problems that have either two-dimensional x-y symmetry or axial symmetry. Problem types supported include Electrostatics , Magnetostatics , Transient Magnetics , AC Magnetics, DC Conduction, AC Conduction, Transient and Steady State Thermal Analysis , Stress Analysis , and Electrical Circuits . Multiphysics analysis capabilities include various couplings between Thermal, Stress, Electro static, Magnetostatic, Time-harmonic Magnetic, AC and DC Conduction.

Table 3.1 gives an overview of analysis types supported by QuickField.

Table 3.1

Analysis & Symmetry

Material Properties

Sources

Boundary Conditions

Post Processing Results

Electrostatic
X-Y Symmetry Axial Symmetry	IsotropicPermittivity Orthotropic Permittivity Air ε = ε₀	Voltages Point Charges Surface Charges Volume Charges	Dirichlet Condition (Specified Voltages) Neumann Condition (Specified Charge Density) Constant Potential with Specified Total Charge	Voltages Electric Fields Field Gradients Flux Density Surface Charges Capacitances Electric Forces Torques Electric Energy
Magnetostatic
X-Y Symmetry Axial Symmetry	Isotropic Permeability Orthotropic Permeability Air μ = μ⁰ B-H curves Ferromagnets & Superconductors	Line Currents Current Density Uniform Field Permanent Magnets	Dirichlet Condition (Vector Potential A) Neumann Condition (Tangential B Field) Superconductor (Zero Normal B)	Vector Potential A Magnetic Fields (Flux Density B) Field Intensity H Magnetic Forces Magnetic Torques Magnetic Energy Flux Linkages Inductances (Self & Mutual)
AC Magnetic
X-Y Symmetry Axial Symmetry	Isotropic Permeability Orthotropic Permeability Air μ = μ⁰ Conductivity	Line Currents (Time Harmonic) Current Density (Time Harmonic) Uniform AC Magnetic Field AC Voltage	Dirichlet Condition (Vector Potential A) Neumann Condition (Tangential B Field) Superconductor (Zero Normal B)	Vector Potential A Magnetic Fields (Flux Density B) Field Intensity H Maxwell and Lorentz Forces (Peak & Time Avg.) Maxwell and Lorentz Torques (Peak & Time Avg.) Magnetic Energy Flux Linkages Inductance (Self & Mutual) Eddy Current Joule Heat Impedances
Transient Magnetic
X-Y Symmetry Axial Symmetry	Isotropic Permeability Orthotropic Permeability Air μ = μ⁰ B-H curves - Ferromagnets & Superconductors	Line Current (Time-Dependent) Current Density (Time-Dependent) Uniform Field Permanent Magnets	Dirichlet Condition (Vector Potential A) Neumann Condition (Tangential B Field) Superconductor (Zero Normal B)	Vector Potential A Magnetic Fields (Flux Density B) Field Intensity H Magnetic Forces Magnetic Torques Magnetic Energy Flux Linkages Inductances (Self & Mutual) Eddy Currents
DC Conduction
X-Y Symmetry Axial Symmetry	Isotropic Resistivity Orthotropic Resistivity	Voltage Current Density	Dirichlet Condition (Specified Voltage) Normal Derivative (Surface Current Density) Constant Potential (Given Constraint)	Voltages Current Density Electric Fields Total Currents Power Loss
AC Conduction
X-Y Symmetry Axial Symmetry	Isotropic Resistivity Orthotropic Resistivity Isotropic Permittivity Orthotropic Permittivity	AC Voltages Current Density (Time Harmonic)	Dirichlet Condition (Specified Voltages) Normal Derivative (Surface Current Densities) Constant Potential (Given Constraint)	Voltages Current Density Electric Fields Total Currents Power Loss Voltages Electric forces (Peek & Time Avg.) Electric Torques (Peak & Time Avg.)
Thermal
X-Y Symmetry Axial Symmetry	Thermal Conductivity (Isotropic for Temperature Dependent) Thermal Conductivity (Orthotropic Temperature Independent) Specific Heat (Temperature Dependent)	Volume Heat Densities (Constant and Temperature Dependent) Convective Sources Radiative Sources Joule Heat Sources (Imported From DC or AC conduction or AC or transient Magnetic Analysis)	Specified Temperatures Boundary Heat Flows Convection Radiation Specified Constraints for Constant Temperature Boundaries	Temperatures Thermal Gradients Heat Flux Density Total Heat Loss or Gain Over Subregion of Model Time Dependence of Quantities (Transient Analysis)
Stress
X-Y Symmetry Axial Symmetry	Isotropic Materials Orthotropic Materials	Body Forces Pressure Thermal Strain Imported Electric or Magnetic Force from Electric or Magnetic Analysis	Prescribed Displacements Elastic Spring Supports	Displacement Stress Components Principle Stress von Mises Stress Tresca Mohr-Coulomb Drucker-Prager Hill Criteria
Circuit Analysis
(AC Magnetics and Transient Magnetics)	Resistors Capacitors Inductors Conductivity & Permittivity of Connected Model Blocks	AC Voltage and Current DC Voltage and Current Transient Voltage and Current	Electrical Wires	Voltage Current Frequency Response

In This Chapter

What is QuickField?
Basic Organization of QuickField
Specifying Problem Types and Properties
Model Construction
Problem Solving and Post Processing
Electrostatics Simulation
Magnetostatics Simulation

Table 3.1 gives an overview of analysis types supported by QuickField.

Table 3.1

Analysis & Symmetry

Material Properties

Sources

Boundary Conditions

Post Processing Results

Electrostatic
X-Y Symmetry Axial Symmetry	IsotropicPermittivity Orthotropic Permittivity Air ε = ε₀	Voltages Point Charges Surface Charges Volume Charges	Dirichlet Condition (Specified Voltages) Neumann Condition (Specified Charge Density) Constant Potential with Specified Total Charge	Voltages Electric Fields Field Gradients Flux Density Surface Charges Capacitances Electric Forces Torques Electric Energy
Magnetostatic
X-Y Symmetry Axial Symmetry	Isotropic Permeability Orthotropic Permeability Air μ = μ⁰ B-H curves Ferromagnets & Superconductors	Line Currents...

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