Aditya Tiwari

Technical researcher & product engineer

Applied AI · Scientific computing · Industrial systems

Based in India · Working globally

Aditya Tiwari
Aditya Tiwari

I find the real problem, build what is needed, and test whether it holds up.

I use AI across research, product, and engineering to investigate unfamiliar problems, build what is required, and test the result against evidence. That evidence may come from solvers, real data, primary sources, automated checks, customer acceptance, or people who know the field.

I take on consulting engagements through diagnostics, fixed-scope projects, and retainers.

Selected work

Built. Tested. Put to work.

From fixing a client’s simulation to building an engineering-AI workspace.

Product walkthrough · 2 min 44 sec · No audio

01 / Product build · Private alpha

PhyStudio

An AI workspace with engineering checks built in.

I built a workspace to explore designs, inspect CAD, compare trade-offs, and send candidates for solver verification and human review.

AI helps find candidates. The evidence determines what can be trusted.

Inside the project

The workflow connects CAD and dataset intake, design exploration, applicability checks, verification queues, and an audit trail of revisions and decisions.

This is a private-alpha product demonstration, not a claim of production deployment or certified designs. The demo has no narration; its on-screen guided steps explain the workflow.

02 / Independent research · Open evidence

When can a physics-AI model be trusted?

I tested AI-predicted temperature and velocity fields against OpenFOAM, measured uncertainty, and checked where the model should hand back to the solver.

Three test cases comparing OpenFOAM temperature fields, AI predictions, absolute error, and uncertainty. Error increases outside the tested operating range.
Solver → prediction → error → uncertainty. Select the figure to inspect it.

848solver-qualified cases

23automated tests

A reproducible way to test an AI model’s limits—not just show its best prediction.

What the results showed

Uncertainty was calibrated within the tested operating range. Errors increased outside it, and uncertainty alone was not a reliable detector of every failure. Explicit operating-range checks and solver fallback remain essential.

A bounded research benchmark, not a replacement for OpenFOAM or a production coolant model.

Explore the code and evidence

03 / Paid client work · MultiFluidX

Get the simulation working.
Move the project forward.

The client needed reliable results for its next phase. I kept the existing system, traced a humidity calculation issue, corrected it, and checked the results with the team.

Near-façade temperature fields for the held-out Large E08 case: CFD truth, POD-GP surrogate prediction, and signed error on a plane at z = 6 metres.
Held-out façade case · CFD truth, POD-GP prediction, and signed temperature error.

The result

A usable baseline.
A paid follow-on phase.

The wider work included a reproducible 48-case OpenFOAM campaign and checked temperature, humidity, and source-field outputs for downstream machine learning.

What I worked on

Reproducing the baseline, checking inputs and solver setup, investigating the moisture-to-vapour-pressure conversion, and automating case preparation, convergence checks, and repeatable exports.

The priority was to establish results the team could use before expanding the development scope.

Read the client’s feedback

Public evidence

Selected endorsements

Original posts where available
“Aditya took up our offer of sharing our SAR-based inundation data and they built an advanced flood model for the Yamuna floodplain in 2 days.”
Dr. Manabendra SahariaProfessor · IIT Delhi · Formerly NASA Goddard and NCAR
Read Full Testimonial
“We’re happy with the progress, and identifying the code bug and the input/setup issue was particularly useful. The additional checks you carried out on the façade implementation were also helpful.”
Dr. Kostas LyrasScientific Adviser · MultiFluidX · Researcher · King’s College London
“Thanks to Aditya Tiwari, who has been developing this solver-validated approach as an independent practice, for his work on this.”
Dr. Andrew TweedieCo-Founder and Co-CTO · Quanscient · Former Co-Founder · OnScale
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“Your experience is exactly what we need for this phase. Thank you again for your excellent presentation.”
Dr. Eberhard BaischThermal Research Scientist

Simulation reliability · AI for science

Consulting

Get a stuck simulation moving, build a reliable baseline, or bring in ongoing support. CFD, multiphysics, and physics AI—checked against physics and evidence.

Diagnostic

Fee range · USD$500–1,500

Investigate one stuck case. Get written findings, a short readout, and clear next steps.

Start a diagnostic
Scope & details

Includes

  • Hands-on investigation of the supplied materials, including the relevant setup, files, logs, existing results, and expected behaviour
  • Written findings covering what was checked, what the evidence supports, what remains uncertain, and recommended next steps
  • A short readout to walk through the findings

Does not include

Full implementation, a guaranteed root-cause discovery, or a complete fix and re-run, unless explicitly agreed in writing for that diagnostic.

Scope, fee within the range, and delivery date are agreed after a quick review of the problem materials.

Project

Typical fee · USD$8,000–25,000

Deliver an agreed scope over 2–6 weeks: a reliable baseline, a fix, or a validated study.

Discuss a project
Scope & details

Includes implementation and delivery of the agreed scope, typically what follows a Diagnostic. Deliverables may include an audited baseline, a fix, and a validated study or ML-ready pack.

Retainer

From · USD per month$6,000+

Ongoing support for simulation reliability and physics AI, with agreed priorities.

Discuss a retainer
Scope & details

For ongoing validation, baseline work, or physics-AI workflows. Scope and priorities are agreed for the engagement.

Share the problem, deadline, and files you can provide. I’ll reply with fit and a scoped next step.

Fees shown in USD. Quotes available in USD or EUR.