Tools · Fluids & Thermodynamics
Reactor Network / PSR Simulator
Solve stirred-reactor networks to steady state and map ignition and extinction limits across residence time
Hardware and price
Price per run
What a typical run reserves from your wallet: the catalog's expected runtime on each piece of hardware × your plan's per-second rate. Larger inputs reserve more, and you're charged only for the seconds the job actually runs.
| Hardware | Typical runtime | Basic | Starter | Pro | Enterprise |
|---|---|---|---|---|---|
| CPUDefault | 5 min | $0.042 | $0.024 | $0.015 | $0.009 |
In workflows
Chain it with other steps.
Each input and output has a data kind, so the builder only connects steps that fit.
Inputs
- Kinetic mechanism · optionalYAML, CHEMKIN
Outputs
- ArchiveZIP
- TableCSV
- TableCSV
- TableCSV
Ready-made workflows that use it
- Reduce a mechanism, validate it, and map its stability and flammability limitsReduce → validate → reactor and flammability limitsReaction engineering and safety
References
The method behind it.
- David G Goodwin, Harry K Moffat, Ingmar Schoegl et al. (2023). Cantera: An Object-oriented Software Toolkit for Chemical Kinetics, Thermodynamics, and Transport Processes. Zenodo. doi:10.5281/zenodo.8137090 (opens in a new tab)
- Peter Glarborg, James A. Miller, Robert J. Kee (1986). Kinetic modeling and sensitivity analysis of nitrogen oxide formation in well-stirred reactors. Combustion and Flame. doi:10.1016/0010-2180(86)90018-0 (opens in a new tab)
Run via API
Submit it from your own code.
Use an API key from your account. The estimate uses your plan's rates; submitting reserves that amount from your wallet.
# Estimate the reservation for your plan (payload fields: see the API reference)
curl -X POST https://api.cognichem.com/api/v1/jobs/estimate \
-H "X-Api-Key: $COGNICHEM_API_KEY" \
-H "Content-Type: application/json" \
-d '{"job_type": "reactor-network", "resource": "cpu", "payload": {}}'
# Submit (retrying with the same Idempotency-Key never submits twice)
curl -X POST https://api.cognichem.com/api/v1/jobs/submit \
-H "X-Api-Key: $COGNICHEM_API_KEY" \
-H "Idempotency-Key: $(uuidgen)" \
-H "Content-Type: application/json" \
-d '{"job_name": "reactor-network-1", "job_type": "reactor-network", "resource": "cpu", "payload": { ... }}'Fluids & Thermodynamics
Related tools
- Cantera
Chemical kinetics, thermodynamics, and transport simulations for combustion and reacting flows
- VLE / Flash
Multicomponent vapor–liquid phase equilibrium with cubic EOS and UNIFAC or NRTL activity models
- VLE Thermodynamic Consistency Checker
Check binary Txy or Pxy vapor–liquid equilibrium data with Gibbs–Duhem area, point, and endpoint tests
- VLE Parameter Regression
Fit binary NRTL interaction parameters to measured Txy or Pxy vapor–liquid equilibrium data
- Solid–Liquid Equilibrium / Eutectic Diagram
Binary liquidus curves, eutectic point, and solubility versus temperature with ideal, NRTL, or UNIFAC activity
- RMG Mechanism Generator
Generate Chemkin / Cantera reaction mechanisms with RMG-Py from species, T/P, and termination