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Vibrations of a Disk Backed by an Air-Filled CylinderVibrations of a Disk Backed by an Air-Filled Cylinder

The modes of vibration of a thin or thick circular disk are well known, and the corresponding eigenfrequencies can be calculated to arbitrary precision from a series solution. The same is true for the acoustic modes of an air-filled...

Stress-Optical Effects in WaveguideStress-Optical Effects in Waveguide

Planar photonic waveguides in silica (SiO2) have a great potential for use in wavelength routing applications. The major problem with these kinds of waveguides is birefringence. Anisotropic refractive indices result in fundamental mode...

Magnetic Drug TargetingMagnetic Drug Targeting

Current research on methods to target chemotherapy drugs in the human body includes the investigation of bio compatible magnetic nano-carrier systems, e.g., magnetic liquids such as ferrofluids. This model example investigates an external...

Liquid ChromatographyLiquid Chromatography

Chromatography encompasses an important group of methods to separate closely related components of complex mixtures. In the two examples, the separation in High Performance Liquid Chromatography (HPLC) is simulated. In this technique...

The Shallow Water EquationsThe Shallow Water Equations

The Shallow Water equations are frequently used for modeling both oceanographic and atmospheric fluid flow. Models of such systems lead to the prediction of areas eventually affected by pollution, coast erosion and polar ice-cap...

Diesel Engine PistonDiesel Engine Piston

In this model, a diesel engine piston is studied at steady-state conditions, that is, at a continuous engine speed and load. The combustion process at steady-state produces cyclic pressure loads and a high constant temperatures. These...

Hyperelastic SealHyperelastic Seal

Loads that depend on the deformation are often termed follower loads. The most common case is a pressure directed along the normal to a surface which deforms. In general, both the direction of the load and the area of the loaded surface...

Thermally Induced Creep AnalysisThermally Induced Creep Analysis

Creep is an inelastic time-dependent deformation which occurs when a material is subjected to stress at sufficiently high temperature, say 40% of the melting point or more. Experimental creep data (using constant stress and...

Viscoelastic Material ModelViscoelastic Material Model

Viscoelastic materials have a time-dependent response, even if the loading is constant. Many polymers and biological tissues exhibit such a behavior. Linear viscoelasticity is a commonly used approximation, where the stress depends...

Electric SensorElectric Sensor

This is a model from electric impedance tomography, a method of imaging the interior permittivity distribution of a body by measuring current and voltage at the surface. This model demonstrates how the shape and placement of figures...


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