Reactor-Particle Coupling

This exercise is based on the lecture notebook L8_reactor_particle_coupling.ipynb.

Task¶

Compare explicit reactor-particle coupling with a coupled implicit approach for a first-order reaction in porous catalyst particles.

Questions¶

1. Solve the isolated reactor model without particle resistance and use it as a reference.

2. Solve the isolated particle model and compute an effectiveness factor for the chosen Thiele modulus.

3. Couple the reactor and particle models explicitly by iterating between bulk concentration and particle surface concentration.

4. Repeat the calculation with a monolithic or Schur-complement coupling strategy.

5. Compare the outlet conversion and the required number of coupling iterations for the explicit and implicit approaches.

Deliverables¶

Submit concentration profiles, particle profiles at selected axial positions, and a short explanation of when explicit coupling becomes inefficient.