Electromagnetic contact

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It is pos­si­ble to trig­ger the elec­tro­mag­net­ism con­tact al­go­rithms to check for con­tact be­tween con­duc­tors and al­low the elec­tro­mag­net­ic fields to flow from one con­duc­tor to an­oth­er when de­tect­ed. This fea­ture should be used when the con­duc­tors form­ing the closed cir­cuit are mov­ing or slid­ing against one an­oth­er. For the Ed­dy cur­rent solver, at each elec­tro­mag­net­ic time step, the solver will re­com­pute the new BEM mesh. For the Re­sis­tive solver, no BEM is com­put­ed and con­strains are added at the lo­ca­tion of the con­tact zone. A typical ap­pli­ca­tion can be sim­u­lat­ing rail­gun mod­els.