Try Delta-V for five minutes
No fluid-simulation expertise is required. Try these tasks without help, then share what you understood. This is a usability study of the interface, not a scientific model evaluation.
- Open the landing page. Explain in your own words what you expect this tool to do.
- Open the prepared example. Explain what the three images show.
- Choose another field. Find its measured error and explain the target indicator.
- Move a parameter slider. Describe what changed and whether you expected the images to change.
- Find a limitation and share a link to your current comparison.
When finished, share your observations with the person who invited you.
For the project owner
Recruit 5–10 people, including a mix of people who run simulations and people who do not. Send this page individually. Let them work without coaching. Ask permission before recording anything; recordings are unnecessary for this test.
For each participant use an anonymous code (P01, P02…), and record each task as completed unaided, completed with help, or not completed. Note the first point of confusion, time to first comparison, whether they distinguish the two modes, and whether they understand that training examples do not establish unseen-system performance. Avoid names or contact details in the result sheet.
After five sessions, count recurring problems and prioritize the issues that stop people completing a comparison. Preserve contradictory observations. Actual participant sessions have not yet been run; this page is the test kit.