Micromagnet Capture Modeling in MATLAB with FEATool and CFDTool
Exosomes are nanoscale, membrane-bound particles released by cells. In experiments at Dartmouth, researchers attached magnetic beads to exosomes so they could collect them on small magnetic structures, or micromagnets. Under flow, those structures have to hold onto the bead-exosome complexes against the drag of the …
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
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 = …
Magnetic Field Around a Permanent Magnet
Example of simulation and visualization of the two-dimensional static magnetic potential field around a u-shaped permanent magnet. This model is available as an automated tutorial by selecting Model Examples and Tutorials… > from the File menu. Or alternatively, follow the linked step-by-step instructions. …