Update app.py

app.py

@@ -1,7 +1,8 @@
 import gradio as gr
-import subprocess
 from apdl_generator.apdl_plate import generate_plate_apdl
-from apdl_generator.apdl_beam.py import generate_beam_apdl
+from apdl_generator.apdl_beam import generate_beam_apdl  # Corrected import
+from simulators.fenics_simulation import run_fenics_simulation
+from simulators.ansys_simulation import run_ansys_simulation
 from visualization import visualize_results
 
 def simulation_workflow(use_case, simulator, **kwargs):