https://github.com/jiweiqi/ignsens

Efficient approach for evaluating the sensitivity of ignition delay time. Implement with Cantera/Python
https://github.com/jiweiqi/ignsens

cantera combustion python sensitivity-analysis

Last synced: about 2 months ago
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Efficient approach for evaluating the sensitivity of ignition delay time. Implement with Cantera/Python

• Host: GitHub
• URL: https://github.com/jiweiqi/ignsens
• Owner: jiweiqi
• License: mit
• Created: 2018-06-12T09:09:59.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2020-04-21T14:40:44.000Z (over 4 years ago)
• Last Synced: 2024-03-21T07:45:40.887Z (10 months ago)
• Topics: cantera, combustion, python, sensitivity-analysis
• Size: 527 MB
• Stars: 13
• Watchers: 2
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# IgnitionDelaySensitivity

Efficient approach for evaluating the sensitivity of ignition delay time. Implement with Cantera/Python. The repo includes the accepted manuscript and the demo codes, including the mechanism files.

# Instruction

+ If you need the relative sensitivities, you can simply use the local temeprature sensitvity. But take care of the positive/negative sign. You can figure out the sign based on intution, or compute one of the sensitvity with brute force approach.

+ If you need the absolute value of the sensitvities. You can follow the paper and compute two top sensitive reactions.

# API 

Initially, I planed to write an api, later on , I realized that it is unnessary ... But if you find that an api might be useful, you can start from the proposal bellow. 

+ idtSens(gas, T, P, X, Type = 'UV', factor = 0.05 )

    + gas: The object of IdealGasMixture

    + T: [K]

    + P: [atm]

    + X: Mixture of Fuel and Air, e.g., 'H2:1.0,O2:1.0,N2:3.76'

    + Type: 'UV': Constant Vloume Reactor, 'HP': Constant Pressure Reactor

    + factor: the pertubation factor for the finite difference (brute force) approach, default value is 0.05

Alternatively, the reaction mechanism .xml file can be passed. [Proposal]

# Demo

GRImech 3.0 which is included in the Cantera package

# Cite

Weiqi Ji, Zhuyin Ren, Chung K. Law, Evolution of Sensitivity Directions during Autoignition, Proceedings of the Combustion Instituts, 2018, doi:10.1016/j.proci.2018.07.005