NeqSim is a library for calculation of fluid behavior, phase equilibrium and process simulation
C-Rank Grade: S (Elite) - 69/100
External PR Merge Rate: 76%
Response Time: -
First Timer Success: 86%
equinor/neqsim has a recorded first-timer success rate of 85.7%. Repositories ranked S typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in equinor/neqsim respond to incoming external pull requests in approximately 0.0 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.
The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 69.2 places equinor/neqsim in the S tier.
The external contributor pull request merge rate for equinor/neqsim is 75.6%, based on public PR activity from non-core contributors.
equinor/neqsim does not currently have active "good first issue" tags indexed, but accepts external contributions through standard GitHub issue tracking.
Collaborative maintainer environment in equinor/neqsim. Reviews community pull requests with focus on project quality.
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Show contributors that your repository actively reviews and merges external pull requests.
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Historical health & responsiveness evolution
External PR acceptance
First PR success rate
50% receive response in
90% receive response in
Maintainer review activity heatmap & prime window prediction
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Detected: UTC
Maintainers are most responsive around 04:00 UTC (04:00 UTC in your timezone). Recommended submission window is Monday - Wednesday from 03:00 to 07:00 UTC (03:00 - 07:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~16 hours (94% approval). Large PRs (>500 lines) take ~115 hours (34% approval). Keep your diff compact for rapid review.
Describe the bug SaturationTemperature.calcSaturationTemperature() and SaturationPressure.calcSaturationPressure() became roughly 20x slower in NeqSim 3.12.0 and remain slow through 3.18.0. The returned values are unchanged — this is purely a performance regression. The bracketing search was rewritten in #2219 ("fix TPflash error"). It now sweeps a fixed full range from a global minimum in coarse steps and never breaks out of the loop when a bracket is found, so every call performs a constant, worst-case number of TPflash evaluations regardless of how close the fluid already is to its saturation boundary: solver swept range step TPflash calls per call, always SaturationTemperature 30 K → 1200 K 10 K ~118 (+ ~20 bisection) SaturationPressure 1 bara → 1000 bara 10 bar ~100 (+ ~20 bisection) Before 3.12.0 the search started from the fluid's current temperature/pressure and walked outward until it crossed the phase boundary — typically a handful of flashes when the flui
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When evaluating whether to contribute to equinor/neqsim, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.
Currently, maintainers of equinor/neqsim acknowledge new external contributions in approximately -. Out of all submitted pull requests from non-core authors in the last 180-day window, 75.6% were successfully merged into the primary branch.
equinor/neqsim has a recorded first-timer success rate of 85.7%. Repositories ranked Elite typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~-. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 69.2 places equinor/neqsim in the Elite tier.
The external pull request merge rate is 75.6%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
equinor/neqsim does not have open beginner labels indexed currently, but external PRs for bugs and documentation improvements are evaluated via normal issue triage.
All metrics displayed for equinor/neqsim are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.