# SimScale Support Report — AMI Transient Simulation Cost/Convergence Issue

**URL:** <https://www.simscale.com/forum/t/simscale-support-report-ami-transient-simulation-cost-convergence-issue/101323>\
**Category:** Project Support\
**Created:** [September 6, 2026, 11:00am UTC](https://www.simscale.com/forum/t/simscale-support-report-ami-transient-simulation-cost-convergence-issue/101323 "2026-09-06T11:00:33Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![RicardoParis](https://www.simscale.com/forum/user_avatar/www.simscale.com/ricardoparis/32/30222_2.png) [@RicardoParis](https://www.simscale.com/forum/u/RicardoParis)\
**Post date:** [September 23, 2026, 3:35pm UTC](https://www.simscale.com/forum/t/simscale-support-report-ami-transient-simulation-cost-convergence-issue/101323/3 "2026-09-23T15:35:10Z")

</div>

Hi,

For a sliding mesh, your best bet will be the multi-purpose solver, which is now available for community users: [SimScale Opens Simerics-MP Mesher and Simerics-MP Solver to Its Entire Community, Free to Try for Non-Commercial Use](https://www.simscale.com/forum/t/simscale-opens-simerics-mp-mesher-and-simerics-mp-solver-to-its-entire-community-free-to-try-for-non-commercial-use/101137)

The incompressible solver supports AMI rotating zones as you mentioned, but it tends to be slower than multi-purpose.

Cheers

---

_[View the full topic](https://www.simscale.com/forum/t/simscale-support-report-ami-transient-simulation-cost-convergence-issue/101323)._