chaos-polymtl/lethe
Nov 2024 – Nov 2025
9 Months active
Languages Used
RSTC++MarkdownPythonreStructuredTextCMakeScriptShellrst
Technical Skills
DocumentationTechnical WritingBuild SystemsCFD-DEM simulationsParameterizationSoftware Engineering
Victor Oliveira Ferreira
PROFILE
Victor Oliveira Ferreira
Victor Ferreira contributed to the chaos-polymtl/lethe repository by developing and refining core features for computational fluid dynamics and CFD-DEM simulations. He implemented volumetric property support, divergence-aware tracer formulations, and robust mesh adaptation controls, using C++ and Python to enhance simulation accuracy and stability. Victor modernized code architecture with ranges-based refactoring and improved output systems for multi-physics workflows. He addressed critical bugs, such as mesh adaptation faults and heat transfer assembly issues, while streamlining documentation and onboarding processes. His work demonstrated depth in numerical methods, solver design, and data structure management, resulting in more reliable, maintainable, and user-friendly simulation software.
Overall Statistics
Feature vs Bugs
73%Features
Repository Contributions
26Total
Bugs
6
Commits
26
Features
16
Lines of code
15,804
Activity Months9
Your Network
6 peopleShared Repositories
6
Work History
November 2025
8 Commits • 3 Features
Nov 1, 2025Month 2025-11 — chaos-polymtl/lethe: delivered clear documentation improvements, addressed critical stability bugs, and advanced code quality and numerical robustness through modern C++ practices. Highlights include documenting that multiple boundary IDs can be applied to the same boundary type and fixing a typo in the rescale residual parameter; a robustness fix for heat transfer assembly; a segmentation fault fix for uniform mesh adaptation with velocity postprocessing; and a new linear-solver option to rescale residuals by the square root of the triangulation volume. These changes reduce user onboarding time, improve numerical stability across varying domain sizes, and enhance maintainability through modernization and clang-tidy-oriented refactors.
8 Commits • 3 Features
Nov 1, 2025Month 2025-11 — chaos-polymtl/lethe: delivered clear documentation improvements, addressed critical stability bugs, and advanced code quality and numerical robustness through modern C++ practices. Highlights include documenting that multiple boundary IDs can be applied to the same boundary type and fixing a typo in the rescale residual parameter; a robustness fix for heat transfer assembly; a segmentation fault fix for uniform mesh adaptation with velocity postprocessing; and a new linear-solver option to rescale residuals by the square root of the triangulation volume. These changes reduce user onboarding time, improve numerical stability across varying domain sizes, and enhance maintainability through modernization and clang-tidy-oriented refactors.
November 2025
October 2025
1 Commits • 1 Features
Oct 1, 2025October 2025: Delivered a Divergence-Aware Tracer DG formulation in chaos-polymtl/lethe to address tracer jumps at sharp corners and hanging nodes, especially at low CFL. This included updates to tests and documentation reflecting the formulation's sensitivity to CFL and explicit inclusion of velocity divergence. No separate major bugs fixed this month; the focus was on delivering a robust numerical improvement with clear test coverage and documentation.
October 2025
1 Commits • 1 Features
Oct 1, 2025October 2025: Delivered a Divergence-Aware Tracer DG formulation in chaos-polymtl/lethe to address tracer jumps at sharp corners and hanging nodes, especially at low CFL. This included updates to tests and documentation reflecting the formulation's sensitivity to CFL and explicit inclusion of velocity divergence. No separate major bugs fixed this month; the focus was on delivering a robust numerical improvement with clear test coverage and documentation.
September 2025
4 Commits • 3 Features
Sep 1, 2025September 2025 monthly summary for chaos-polymtl/lethe: Delivered three major advancements enhancing configurability, output robustness, and testing, with tangible business value in faster setup, reliable data, and regression safety.
4 Commits • 3 Features
Sep 1, 2025September 2025 monthly summary for chaos-polymtl/lethe: Delivered three major advancements enhancing configurability, output robustness, and testing, with tangible business value in faster setup, reliable data, and regression safety.
September 2025
August 2025
4 Commits • 3 Features
Aug 1, 2025Monthly summary for 2025-08 covering chaos-polymtl/lethe work: delivered new data output capabilities, stabilized multiphysics workflows, streamlined cluster usage, and reinforced testing and documentation to support future scales.
August 2025
4 Commits • 3 Features
Aug 1, 2025Monthly summary for 2025-08 covering chaos-polymtl/lethe work: delivered new data output capabilities, stabilized multiphysics workflows, streamlined cluster usage, and reinforced testing and documentation to support future scales.
July 2025
1 Commits
Jul 1, 2025July 2025 monthly summary for chaos-polymtl/lethe focusing on mesh adaptation reliability fixes in transient simulations. Implemented enforcement of maximum refinement level during uniform mesh adaptation to prevent indefinite refinement, and added an assertion to disallow uniform adaptation with simplex meshes, enhancing stability and correctness. Delivered targeted fix tied to commit 'Max uniform refinement (#1599)'.
1 Commits
Jul 1, 2025July 2025 monthly summary for chaos-polymtl/lethe focusing on mesh adaptation reliability fixes in transient simulations. Implemented enforcement of maximum refinement level during uniform mesh adaptation to prevent indefinite refinement, and added an assertion to disallow uniform adaptation with simplex meshes, enhancing stability and correctness. Delivered targeted fix tied to commit 'Max uniform refinement (#1599)'.
July 2025
March 2025
2 Commits • 1 Features
Mar 1, 2025Monthly summary for 2025-03 for chaos-polymtl/lethe focusing on features delivered, bugs fixed, impact, and skills demonstrated. Highlights: added user-defined quadrature controls for QCM void fraction to enable mesh-independence studies; fixed particle insertion in single-time-step simulations for unresolved CFD-DEM, including regression test and a new CFD-DEM example; added an unresolved CFD-DEM sedimentation example to showcase workflow; improved test coverage and configuration options, reinforcing reliability for customers and internal validation.
March 2025
2 Commits • 1 Features
Mar 1, 2025Monthly summary for 2025-03 for chaos-polymtl/lethe focusing on features delivered, bugs fixed, impact, and skills demonstrated. Highlights: added user-defined quadrature controls for QCM void fraction to enable mesh-independence studies; fixed particle insertion in single-time-step simulations for unresolved CFD-DEM, including regression test and a new CFD-DEM example; added an unresolved CFD-DEM sedimentation example to showcase workflow; improved test coverage and configuration options, reinforcing reliability for customers and internal validation.
February 2025
2 Commits • 1 Features
Feb 1, 2025February 2025 — chaos-polymtl/lethe: Delivered core volumetric capability for CFD-DEM simulations by adding volumetric_contribution support in DEM properties and ensuring this property is reflected in CFD-DEM outputs. This release enhances volumetric calculations, data fidelity in VTU exports, and overall simulation accuracy.
2 Commits • 1 Features
Feb 1, 2025February 2025 — chaos-polymtl/lethe: Delivered core volumetric capability for CFD-DEM simulations by adding volumetric_contribution support in DEM properties and ensuring this property is reflected in CFD-DEM outputs. This release enhances volumetric calculations, data fidelity in VTU exports, and overall simulation accuracy.
February 2025
January 2025
2 Commits • 2 Features
Jan 1, 20252025-01 monthly summary for chaos-polymtl/lethe: Delivered two targeted features that improve usability and developer onboarding. No major bugs documented in this period. Key outcomes include clarifying smoothing parameter semantics and streamlining Apple Silicon installation, improving maintainability, onboarding, and cross-platform support.
January 2025
2 Commits • 2 Features
Jan 1, 20252025-01 monthly summary for chaos-polymtl/lethe: Delivered two targeted features that improve usability and developer onboarding. No major bugs documented in this period. Key outcomes include clarifying smoothing parameter semantics and streamlining Apple Silicon installation, improving maintainability, onboarding, and cross-platform support.
November 2024
2 Commits • 2 Features
Nov 1, 2024In Nov 2024, the chaos-polymtl/lethe project delivered targeted documentation updates for two flow example scenarios: the 2D transient flow around Ahmed body and the Pneumatic conveying example. The work deprecates the simplex version for the Ahmed body example, refines textual descriptions and image references, and clarifies simulation steps, particle insertion, mesh configuration, and boundary conditions. These changes improve user onboarding, reduce setup ambiguity, and align docs with the current codebase. No major bugs were fixed during this period; focus was on documentation and clarity to accelerate user adoption and reduce support effort.
2 Commits • 2 Features
Nov 1, 2024In Nov 2024, the chaos-polymtl/lethe project delivered targeted documentation updates for two flow example scenarios: the 2D transient flow around Ahmed body and the Pneumatic conveying example. The work deprecates the simplex version for the Ahmed body example, refines textual descriptions and image references, and clarifies simulation steps, particle insertion, mesh configuration, and boundary conditions. These changes improve user onboarding, reduce setup ambiguity, and align docs with the current codebase. No major bugs were fixed during this period; focus was on documentation and clarity to accelerate user adoption and reduce support effort.
November 2024
Activity
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Quality Metrics
Correctness93.2%
Maintainability88.4%
Architecture88.8%
Performance82.0%
AI Usage20.8%
Skills & Technologies
Programming Languages
C++CMakeScriptMarkdownPythonRSTShellreStructuredTextrst
Technical Skills
Build SystemsC++C++ DevelopmentC++ developmentC++ programmingCFD-DEMCFD-DEM CouplingCFD-DEM simulationsChangelog ManagementCode ArchitectureCommand-line InterfaceComputational Fluid DynamicsData AnalysisData StructuresData Visualization
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