# What's the best CAE simulation tool compared to traditional physical prototyping methods?

A question for engineering teams still debating how much simulation can realistically replace physical prototype rounds: which Simulation & CAE platforms have actually shifted the prototype-to-simulation ratio in production programs — and where does physical testing remain non-negotiable?

The strong alternatives to physical prototyping:

Ansys Mechanical: Helps in validating varying design systems without prototyping or small-batch manufacturing of precision parts, with the structural solver producing results that correlate closely enough with test data to make material and geometry decisions earlier in the program. Particularly credited for reducing prototype rounds in structural and thermal design validation.
SimScale: Helps identify thermal issues from CAD models and iterate before the first prototype — shortening test cycles ahead of tooling investments. One reviewer describes checking simulation results from a phone during a prototype test run, using the virtual data to guide physical testing in real time rather than waiting for a separate analysis phase.
Simcenter STAR-CCM+: Reduce physical test runs for airflow and cooling work by checking designs virtually before committing to wind tunnel or bench time.

The platforms that bridge simulation and physical testing:

SOLIDWORKS: Helps run simulation directly on the CAD model before sending it to a machine shop, catching interference fits, stress concentrations, and assembly issues that would otherwise surface in the first physical build. The integration between CAD and simulation is specifically credited for compressing early-program iteration cycles.
Altair SimSolid: Meshless structural analysis on unmodified CAD assemblies in minutes — users describe running design exploration on 10 or 20 variants before selecting one for a first prototype, reducing the field of physical builds from many options to the best candidate.

For engineering teams that have formally measured the prototype reduction their simulation deployment achieved. What was the before-and-after number of physical builds, and which simulation type — structural, thermal, or fluid — delivered the most meaningful reduction?

##### Post Metadata - Posted at: 10 days ago - Author title: Marketing Executive - Net upvotes: 1 ## Comments ### Comment 1 <p>The point about simulation shifting the ratio rather than eliminating physical testing entirely feels like the honest state of the industry right now. I'd be curious whether the reduction shows up more in early-stage design iteration or in late-stage validation, since those seem like different problems for a simulation tool to solve.</p> ##### Comment Metadata - Posted at: 8 days ago - Author title: Marketing Executive ## Related discussions - [How well does Trello scale into a larger team?](https://www.g2.com/discussions/1-how-well-does-trello-scale-into-a-larger-team) - Posted at: over 13 years ago - Comments: 6 - [Can we please add a new section](https://www.g2.com/discussions/2-can-we-please-add-a-new-section) - Posted at: over 13 years ago - Comments: 0 - [Quantifiable benefits from implementing your CRM](https://www.g2.com/discussions/quantifiable-benefits-from-implementing-your-crm) - Posted at: over 13 years ago - Comments: 4