FEATool Multiphysics

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Modeling of Wind Flow Around Obstructions to Aid Wind Turbine Placement Decisions

Modeling of Wind Flow Around Obstructions to Aid Wind Turbine Placement Decisions

Modeling of Wind Flow Around Obstructions to Aid Wind Turbine Placement Decisions

Modeling of Wind Flow Around Obstructions to Aid Wind Turbine Placement Decisions

Renewable energy such as solar and wind power is becoming increasingly important in reducing effects of global warming. The One Energy wind power company installs wind turbines on local properties instead of dedicated wind farms, in which case there are no industry standards how small single obstructions, such as from …

Space-Time Transformation of Heat Conduction

Space-Time Transformation of Heat Conduction

Space-Time Transformation of Heat Conduction

Space-Time Transformation of Heat Conduction

This example considers transient heat diffusion in a solid 1 m rod where one end is kept at T = 25 degrees and the other subject to constant heat flux q_n = 1. This one-dimensional time dependent problem is transformed to a static two dimensional one. The computed results can both be compared with the analytical …

Capacitance in a Microstrip Transmission Line

Microstrip Transmission Line

Microstrip Transmission Line

Capacitance in a Microstrip Transmission Line

A shielded electrical microstrip transmission line is fixed to a substrate and placed in a shielded container of air. The simulation applies a known voltage to the strip to calculate the resulting capacitance and compares this with the theoretical result. The problem assumes symmetry in the lengthwise direction so that …

Stress Distribution in a Solenoid

Stress Distribution in a Solenoid

Stress Distribution in a Solenoid

Stress Distribution in a Solenoid

This multiphysics model examines how magnetic forces give rise to stresses in a long thick cylindrical solenoid. A current density of 106 A/m2 is running through a wound coil with 1 cm inner to 2 cm outer radii. The material of the coil is assumed to have a modulus of elasticity of 1.075⋅1011 N/m2 and Poisson’s …

Inductance in Parallel Wires

Inductance in Parallel Wires

Inductance in Parallel Wires

Inductance in Parallel Wires

This example calculates the inductance between parallel wires. Two 1 m wires with 4 mm radius 1 A current are placed 0.5 m apart in a large domain of non-conducting air or vacuum. The inductance is computed with both using the magnetic field energy and flux linkage, and compared against the analytical solution L = …

Conducting Sphere

Conducting Sphere

Conducting Sphere

Conducting Sphere

This verification example considers a perfectly conducting sphere placed between two charged capacitor plates. An axisymmetric solution for the electrostatic potential is compared with a full 3D one, and verified against the analytical solution U(xi) = E0*(r3/xi2 - xi), where the electrical field is the potential …

Thermal Bridge

Thermal Bridge

Thermal Bridge

Thermal Bridge

This is a benchmark test case for modeling the steady-state temperature distribution in a thermal bridge in building construction. The model consists of a 6 mm concrete slab subjected to an outside temperature of 0 °C and heat loss due to convection. The inside features a 4 cm layer of air enclosed within a 1.5 mm …