Necessity of Time-Varying Electromagnetic Force Consideration in MHD Calculation for Electromagnetic Stirring

Electromagnetic Stirring of Steel: Effect of Stirrer Design on Mixing in Horizontal Electromagnetic Stirring of Steel Slabs

Electromagnetic stirring is widely used in continuous casting of steel as a means to improve homogeneity of cast slabs. Industrial experience has shown that stirrer design and operating conditions have a strong influence on the metallurgical quality of the cast slab. This paper examines the effect of the stirrer current and field frequency on the flow in horizontal EMS of steel slabs. A threedi...

Calculation of Lightning Electromagnetic Fields: a Review

Lightning return stroke is a self-propagating discharge with path length measured in kilometres, which extends at high speeds, sometimes approaching a significant fraction of the speed of light. Usually one is interested in the electromagnetic fields produced by lightning several tens of meters to some kilometres away. In order to calculate fields from lightning, it is modelled as a linear trav...

Afterglow calculation in the electromagnetic model for gamma-ray bursts

Aims. We compute the afterglow of gamma-ray bursts produced by purely electromagnetic outflows to see if it shows characteristic signatures differing from those obtained with the standard internal/external shock model. Methods. Using a simple approach for the injection of electromagnetic energy to the forward shock we obtain the afterglow evolution both during the period of activity of the cent...

Research and Experiment on Electromagnetic Force Properties of LPMBLDCLM for Electromagnetic Launch

In order to improve the thrust characteristics of the moving-magnet type linear permanent magnet brushless DC motor (LPMBLDCM), the structural characteristics and magnetic field are analyzed. The influence rule of electrical parameters and structural parameters on the electromagnetic properties and thrust performance are researched by finite element analysis (FEA). The effect regularity of stru...

Nonclassical Properties of Superpositions of Coherent and Squeezed States for Electromagnetic Fields in Time-Varying Media