CFD Engine

A high-performance Computational Fluid Dynamics (CFD) simulation engine built with C++, CUDA, and Vulkan. This project utilizes the Lattice Boltzmann Method (LBM) for fluid simulation and provides real-time visualization.

Features

• Lattice Boltzmann Method (LBM): 3D fluid simulation using the D3Q19 model.
• High Performance: Accelerated using CUDA for parallel computation on the GPU.
• Real-time Visualization: Vulkan-based rendering with zero-copy CUDA-Vulkan interoperability.
• Interactive: Real-time camera controls and ImGui-based user interface.
• Solid Boundaries: Support for solid obstacles within the simulation domain.

Prerequisites

Before building the project, ensure you have the following installed:

• C++ Compiler: Compatible with C++20 (e.g., GCC, Clang, MSVC).
• CMake: Version 3.24 or higher.
• Make: Build tool.
• CUDA Toolkit: For compiling the LBM solver kernels.
• Vulkan SDK: For the rendering engine.

Build Instructions

The project includes a Makefile to simplify the build process.

Release Build

To build the project in Release mode (optimized):

make build

Debug Build

To build the project in Debug mode:

make debug

Clean

To clean the build artifacts:

make clean

Format Code

To format the source code using clang-format:

make format

Run Tests

To build and run the tests:

make test

Usage

After building, the executable will be located in the build directory.

./build/Engine/Engine

Controls

• W / S: Move Camera Forward / Backward
• A / D: Move Camera Left / Right
• Q / E: Move Camera Down / Up
• Right Mouse Button + Drag: Rotate Camera (Look around)

Project Structure

• Core/: Contains core engine components such as Application, Window, Input, Timer, and Logger.
• Engine/: Contains the simulation and rendering logic.
  • Graphics/: Vulkan renderer, Camera, and Shader management.
  • Physics/: LBM solver implementation using CUDA.
• thirdparty/: External libraries and dependencies.

License

This project is licensed under the Apache-2.0 License.