The best replacement for elmer is comsol.

The best alternatives to elmer are rated as following:
★★★★★  comsol
★★★★★  bugs
★★★★  code_aster
★★★★  openfoam
★★★  agilent
★★  jerry

Your alternative for elmer is not listed? Suggest!
Speaking about elmer, one probably shouldn't forget about gmsh.

Other search terms related to elmer and their ratings are:
★★★★★ gmsh
You have in mind a companion for elmer and it is not yet here? Propose!



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elmer
comsol
bugs