
Abdallah Ballout developed advanced multiphase flow simulation capabilities for the loganoz/horses3d repository, focusing on solver enhancements, parallel processing, and robust testing. He integrated a multiphase MPI solver and Large Eddy Simulation models using Fortran and MPI, enabling scalable, high-fidelity turbulence modeling. Abdallah introduced a mixed Runge-Kutta scheme for phase-specific time stepping, updated mesh partitioning routines, and standardized solver workflows for improved accuracy and efficiency. He strengthened CI/CD pipelines, expanded test coverage, and refined documentation to streamline onboarding and deployment. His work demonstrated depth in computational fluid dynamics, numerical methods, and code refactoring, resulting in more reliable, production-ready simulations.

September 2025 monthly summary for loganoz/horses3d: Implemented MixedRK support with naming standardization and specmesh compatibility. Standardized the MixedRK explicit method naming across the codebase to 'MixedRK' and enabled initialization and execution with specmesh by adding ReadInitialSurfaceData to construct face data when mesh type is 'mesh'. No major bugs fixed were recorded in this period. This work improves consistency, interoperability with specmesh, and readiness for future MixedRK-based workflows.
September 2025 monthly summary for loganoz/horses3d: Implemented MixedRK support with naming standardization and specmesh compatibility. Standardized the MixedRK explicit method naming across the codebase to 'MixedRK' and enabled initialization and execution with specmesh by adding ReadInitialSurfaceData to construct face data when mesh type is 'mesh'. No major bugs fixed were recorded in this period. This work improves consistency, interoperability with specmesh, and readiness for future MixedRK-based workflows.
June 2025: Delivered two high-impact items for loganoz/horses3d. 1) HORSES3D Documentation and Build Workflow Update to streamline onboarding, clarify build references, and polish typography, improving user experience and deployment reliability. 2) Correct Riemann solver for multiphase flows with updated test suite, fixing inaccurate simulations, refining sound speed handling and artificial compressibility, and expanding tests for non-constant sound speed. This work reduces onboarding time, increases simulation fidelity, and strengthens test coverage.
June 2025: Delivered two high-impact items for loganoz/horses3d. 1) HORSES3D Documentation and Build Workflow Update to streamline onboarding, clarify build references, and polish typography, improving user experience and deployment reliability. 2) Correct Riemann solver for multiphase flows with updated test suite, fixing inaccurate simulations, refining sound speed handling and artificial compressibility, and expanding tests for non-constant sound speed. This work reduces onboarding time, increases simulation fidelity, and strengthens test coverage.
May 2025 monthly summary for loganoz/horses3d: Delivered a mixed Runge-Kutta (RK) scheme for multiphase simulations, enabling phase-specific time stepping and improvements in accuracy and efficiency for multiphase kernels. The implementation touched core solver paths and required coordinated updates to CI workflows, mesh partitioning, and spatial discretization routines to support the new mixed RK approach. This work enhances simulation fidelity for multiphase scenarios and sets the foundation for further performance optimizations and larger-scale runs. Commit reference: 4d0f140570c8a70de18f3ab45b4401c55aaeb4f4 - 'Added mixed RK for multiphase'.
May 2025 monthly summary for loganoz/horses3d: Delivered a mixed Runge-Kutta (RK) scheme for multiphase simulations, enabling phase-specific time stepping and improvements in accuracy and efficiency for multiphase kernels. The implementation touched core solver paths and required coordinated updates to CI workflows, mesh partitioning, and spatial discretization routines to support the new mixed RK approach. This work enhances simulation fidelity for multiphase scenarios and sets the foundation for further performance optimizations and larger-scale runs. Commit reference: 4d0f140570c8a70de18f3ab45b4401c55aaeb4f4 - 'Added mixed RK for multiphase'.
2025-04 Monthly Summary — loganoz/horses3d: Strengthened test coverage and CI reliability for the Multiphase module by delivering an 80-element mesh-based Snell solver test and integrating it into the CI build/run workflow. Also aligned existing tests by removing a Continuity Residual assertion in RisingBubbleVreman to reflect current expectations. These actions improve regression safety, accelerate feedback cycles, and bolster solver robustness for production-quality results. Notable commits: 412c1e1270298bc6afcdcae096b33727a703205c and 9de5e943cdbab18697420cbc23b6009fa926a927.
2025-04 Monthly Summary — loganoz/horses3d: Strengthened test coverage and CI reliability for the Multiphase module by delivering an 80-element mesh-based Snell solver test and integrating it into the CI build/run workflow. Also aligned existing tests by removing a Continuity Residual assertion in RisingBubbleVreman to reflect current expectations. These actions improve regression safety, accelerate feedback cycles, and bolster solver robustness for production-quality results. Notable commits: 412c1e1270298bc6afcdcae096b33727a703205c and 9de5e943cdbab18697420cbc23b6009fa926a927.
December 2024: Delivered multiphase LES integration into the multiphase solver for loganoz/horses3d, including subroutines to compute turbulent viscosity at interfaces and an accompanying multiphase LES model test. No major bugs fixed this month. Overall impact: enables higher-fidelity simulations of interfacial turbulence in multiphase flows, supporting better design decisions and risk assessment for customers. Technologies/skills demonstrated: Large Eddy Simulation integration, multiphase flow modeling, solver integration, unit/integration testing, and commit-level traceability.
December 2024: Delivered multiphase LES integration into the multiphase solver for loganoz/horses3d, including subroutines to compute turbulent viscosity at interfaces and an accompanying multiphase LES model test. No major bugs fixed this month. Overall impact: enables higher-fidelity simulations of interfacial turbulence in multiphase flows, supporting better design decisions and risk assessment for customers. Technologies/skills demonstrated: Large Eddy Simulation integration, multiphase flow modeling, solver integration, unit/integration testing, and commit-level traceability.
Concise monthly summary for 2024-11 for loganoz/horses3d focusing on key accomplishments, business value, and technical achievements.
Concise monthly summary for 2024-11 for loganoz/horses3d focusing on key accomplishments, business value, and technical achievements.
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