### BLOCK, $i$, ${l}_{x}$, ${l}_{y}$, ${l}_{z}$

Creates a block of material. A combination with CYL4 and CYL2 commands is not allowed.

Parameter Description
i block number
${l}_{x}$ block length in $x$ direction
${l}_{y}$ block length in $y$ direction
${l}_{z}$ block length in $z$ direction

Note: in the fluid-structure interaction mode (when FSI command is called), the block is shifted by value ${z}_{0}$ in direction of the z−axis. The value of ${z}_{0}$ is set according to the formula ${z}_{0}=\frac{{A}_{0}}{{l}_{y}}$.