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  • Georgia Tech
  • Atlanta, GA

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apgahlot/README.md

πŸ‘‹ Hi, I'm Abhinav P Gahlot (@apgahlot)

I'm a PhD candidate at Georgia Tech working at the intersection of scientific machine learning, multi-physics simulation, and digital twin systems β€” with applications in energy, geoscience, and large-scale physical systems.


πŸ” Research Interests

  • Inverse Problems & Bayesian Inference β€” amortized and sequential posterior estimation, UQ for high-dimensional inversion
  • Multi-Physics Simulation β€” two-phase Darcy flow, wave propagation, and coupled flow-imaging workflows
  • Digital Twin Systems β€” physics-based simulation coupled with generative models for real-time forecasting and decision support
  • Scientific ML & Surrogate Modeling β€” Fourier Neural Operators, conditional diffusion, and transformers for coupled PDE systems
  • Multimodal Learning for Physical Systems β€” late-fusion of spatial imaging, time-series sensor data, and physical priors for downstream inference and decision support
  • HPC & Scientific Computing β€” large-scale Julia / Python pipelines on GPU and distributed systems

πŸ“‚ Key Repositories

  • Twin4GCS.jl Digital twin framework for underground energy storage. Couples generative posterior models with multi-physics simulation (two-phase Darcy flow + wave-equation imaging) for sequential Bayesian inference of subsurface saturation and permeability fields. (Julia)

  • neural-flow-surrogates Benchmark comparing Fourier Neural Operators, conditional diffusion U-Nets, and Diffusion Transformers as autoregressive surrogates for coupled multiphase porous-media flow on 256Γ—512 grids. Reports per-channel error and calibrated uncertainty against a JutulDarcy reference simulator. (Python / PyTorch)

  • Nonlinear-JRM Time-lapse seismic imaging via the Joint Recovery Method with a fully nonlinear wave-equation forward operator β€” consistent multi-vintage reconstruction from sparse, noisy observations. (Julia)

  • ccs8803-env_JUDI & ccs8803-env_Jutul Containerized compute environments (JUDI + Jutul + SLIM stack) used in the CCS 8803 graduate course at Georgia Tech for hands-on seismic modeling, imaging, and reservoir simulation exercises. (Docker / Julia)


πŸ“« Contact

Popular repositories Loading

  1. ccs8803-env_JUDI ccs8803-env_JUDI Public

    Docker environment for seismic modeling and imaging for CCS8803 class

    Jupyter Notebook 1

  2. neural-flow-surrogates neural-flow-surrogates Public

    Open benchmark of FNO, conditional-diffusion (U-Net & DiT), and ensemble-UQ surrogates for two-phase porous-media flow (CO2 sequestration).

    Python 1

  3. SlimPlotting.jl SlimPlotting.jl Public

    Forked from slimgroup/SlimPlotting.jl

    SLIM internal plotting utilities

    Julia

  4. apgahlot apgahlot Public

    Config files for my GitHub profile.

  5. ReliableAVI.jl ReliableAVI.jl Public

    Forked from slimgroup/ReliableAVI.jl

    Code to partially reproduce results in "Reliable amortized variational inference with physics-based latent distribution correction"

    Julia

  6. ccs8803-env_Jutul ccs8803-env_Jutul Public

    Docker environment for JutulDarcy simulation for CCS8803 class

    Jupyter Notebook