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  • 1. GASFLOW Code
    • 1.1. Overview
    • 1.2. Code Approach
    • 1.3. Code Features
    • 1.4. Graphical User Interface
    • 1.5. Code V&V
    • 1.6. Application Highlights
    • 1.7. Publications
    • 1.8. Current Activities
  • 2. Tutorials
    • 2.1. Overview
    • 2.2. Sod's Shock Tube Problem
    • 2.3. Mesh Generation from CAD Models
    • 2.4. 2D Lid-driven Cavity Flow
    • 2.5. Hydrogen Diffusion into Air in a 1D Duct
    • 2.6. Supersonic Flow over a Forward-facing Step
    • 2.7. Vented Explosion of Premixed Hydrogen-Air Mixtures
    • 2.8. Transient Laminar Jet Flow at Low Mach Number Regime
  • 3. Brief User Guide
    • 3.1. Overview
    • 3.2. General User Guidance
    • 3.3. Unit System and Files
    • 3.4. Mesh Generation
    • 3.5. Geometry Definition
    • 3.6. Numerical Control
    • 3.7. Gas Species and Properties
    • 3.8. Initial and Boundary Conditions
    • 3.9. Solid Heat Structures
    • 3.10. Physical Models
    • 3.11. Restart and Output
    • 3.12. GASFLOW Parallelization
  • 4. Pre- and Post-Processing Tools
    • 4.1. GASVIEW
    • 4.2. Pyscan
    • 4.3. Create3D
  • 5. Verification and Validation
    • 5.1.Overview
    • 5.2. Fluid Dynamics
      • [AS-FD 1] Steady-State and Laminar Flow Startup
      • [AS-FD 2] Transient Compressible Flow
      • [AS-FD 3] Diffusion of Hydrogen into Air
      • [AS-FD 4] Flow past a Rectangular Block
      • [AS-FD 5] 1D Flow with an Orifice
      • [ED-FD 1] Incompressible Laminar Flow in a Lid-driven Cavity
      • [ED-FD 2] Stationary Turbulent Channel Flow
      • [ED-FD 3] Turbulent Flow between Two Parallel Plates
      • [ED-FD 4] Flow over Backward-Facing Step
      • [ED-FD 5] Transient Supersonic Flow at Mach 3 over a Forward-facing Step
      • [ED-FD 6] Large Eddy Simulations of the Turbulent Jet Flow
      • [ED-FD-7] Hydrogen Turbulent Dispersion in Nuclear Containment Compartment
      • [ED-FD 8] Buoyant Jet from Unintended Hydrogen Release
      • [ED-FD 9] Radiolytic Gas Accumulation in a Pipe
      • [ED-FD 10] Supersonic Flow at Mach 2 over a Backward Facing Step
    • 5.3. Combustion
      • [ED-CM 1] BOM Spherical Combustion Chamber
      • [ED-CM 2] SNL Flame Acceleration Measurement Facility Experiment
      • [ED-CM 3] Hydrogen Deflagration in a Multi-compartment System
      • [ED-CM 4] Hydrogen Jet Fire in a Compartment with Venting Hole
      • [ED-CM 5] Hydrogen-Air Fast Deflagration in ENACCEF Facility
      • [ED-CM 6] Detonation of Premixed H2-Air Mixture in a Hemispherical Balloon
      • [ED-CM 7] H2 Deflagration at a Refueling Station
      • [ED-CM 8] Methane-Air Explosion in LLEM
      • [ED-CM 9] Hydrogen-Methane Combution in a 20 L Spherical Vessel
    • 5.4. Heat and Mass Transfer
      • [AS-HT 1] Steady-State Heat Transfer through a Wall
      • [AS-HT 2] Pressure-Volume Work Term 1: Equilibrium Case
      • [AS-HT 3] Thermodynamic Benchmarks
      • [AS-HT 4] Uniform Energy Addition to Stagnant Fluid
      • [ED-HT 1] Natural Convection in an Air-filled Square Cavity
      • [ED-HT 2] Validation of the condensation model with COPAIN facility
      • [ED-HT 3] Heat and mass transfer of a thin film model in a channel
      • [ED-HT 4] Validation of the Film Model in the Integral Test Facility for Passive Containment Cooling
      • [ED-HT 5] Stratification Erosion Benchmark
      • [ED-HT 6] Battelle Containment HYJET Test JX7
      • [ED-HT 7] Battelle GX Tests
      • [ED-HT 8] Tests in ThAI Facility
      • [ED-HT 9] HDR Tests
      • [ED-HT 10] Phebus Thermal Hydraulic Tests
      • [ED-HT 11] Test Tosqan ISP47
      • [ED-HT 12] Test MISTRA ISP47
      • [ED-HT 13] Panda SETH Test Program
    • 5.5. Multiphase Flow
      • [AS-MP 1] Particle Terminal Velocity
      • [AS-MP 2] Water droplet evaporation
      • [ED-MP 1] Spray Single Droplet Test
      • [ED-MP 2] Spray Droplets Test 113 at IRSN TOSQAN
      • [ED-MP 3] Spray Droplets Test 101 at IRSN TOSQAN
  • 6. APPLICATION HIGHLIGHTS
    • 6.1. H2 Fuel Cell Vehicle Accident in Tunnel
    • 6.2. Hydrogen Explosion in a Refueling Station
    • 6.3. Hydrogen Explosion at Fukushima Accident
    • 6.4. Methane Explosion in the Roadway of a Coal Mine
    • 6.5. Aerosols and Droplets
      • 6.5.1. Coronavirus Aerosol Transmission
      • 6.5.2. Water Droplets
  • 7. Ongoing Development and Enhancements
    • 7.1. Combustion Modeling
      • 7.1.1. Multi-step Global Methane Combustion Models
        • 7.1.1.1. One-step Reaction Mechanism
        • 7.1.1.2. Two-step Reaction Mechanism
        • 7.1.1.3. Three-step Reaction Mechanism
        • 7.1.1.4. Four-step Reaction Mechanism
        • 7.1.1.5. Five-step Reaction Mechanism
        • 7.1.1.6. FAQ
      • 7.1.2. Laminar Flame Speed Correlations for Methane-air Mixtures
        • 7.1.2.1. Stone's Correlation
        • 7.1.2.2. Elia's Correlation
        • 7.1.2.3. Takizawa's Correlation
        • 7.1.2.4. Liao's Correlation
      • 7.1.3. Turbulent Flame Speed Correlations for Methane-air Mixtures
      • 7.1.4. Correction of Effective Turbulent Burning Velocity for Lean Hydrogen-air Mixtures
      • 7.1.5. Induction Time Model
      • 7.1.6. Detailed Chemical Kinetic Modeling
      • 7.1.7. Jet Flame Modeling
    • 7.2. Discrete Particle Modeling
      • 7.2.1. Particle mass in user-defined volumes - volpardef
      • 7.2.2. Particle injection from ring shaped volumes
    • 7.3. Heat Transfer Modeling
      • 7.3.1. Time-dependent tables for heat flux and heat transfer coefficient in sinkdef
      • 7.3.2. Thermal Radiation Model for Water Vapor and Carbon Dioxide
  • 8. Frequently Asked Questions
    • 8.1. How to set up models for the flashing of pressurized water?
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  1. 7. Ongoing Development and Enhancements
  2. 7.1. Combustion Modeling

7.1.2. Laminar Flame Speed Correlations for Methane-air Mixtures

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Last updated 10 months ago

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Generalized Correlation in GASFLOW-MPI

Generalized correlation for laminar Flame Speed corrected by pressure and temperature can be written as