Supplementary Data for 3D Simulations of Unstable Lean Premixed Hydrogen Flames

Supplementary files for a research article on three-dimensional direct numerical simulations of thermodiffusively-unstable lean premixed hydrogen flames. The dataset includes results from two studies using broadband and single-mode perturbations to analyze flame structure evolution and leading point dynamics. The data, authored by AJ Aspden, was last updated on 2026-04-24 and is shared under a CC-BY-4.0 license.

Use Cases

• Analyzing the formation and interaction of leading point clusters based on the description of three-dimensional flame evolution.
• Comparing two-dimensional versus three-dimensional flame finger structures based on the described simulation results.
• Studying the stability and breakdown of mode-specific flame structures based on the single-mode perturbation study.
• Investigating the propagation speeds and separation dynamics of flame leading points based on the described perturbation modes.

Strengths

• Includes results from two distinct simulation studies (broadband and single-mode perturbations) as described.
• Domain sizes are described as larger than similar previous studies, suggesting reduced computational artifact concerns.
• Data is provided in multiple formats (PDF, MP4) likely for documentation and visualization.

Limitations

• The dataset is relatively small at 13.5 MB, which may limit the depth of raw simulation data available.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for quantitative analysis.

Provenance

Source

figshare

Collection Method

Direct numerical simulation (DNS) of three-dimensional freely-propagating flames in a canonical inflow-outflow configuration.

Freshness

Last updated 2026-04-24 10:37:56; freshness should be verified.