TinyVLM

High Performance Potential Flow Solver

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Features:

• VLM
• NL-VLM
• UVLM
• NL-UVLM
• NLHB-UVLM

Correctors

• High angle of attack correction
• Dihedral / Anhedral Wings (local coordinate projection in force calculation)
• Swept Wings (coordinate rotation)
• Compressibility Effects (Prandtl Glauert corrector)

Backends

• ISPC
• CUDA

Maintainability

• Clangd
• Clang-Format
• Clang-Tidy
• Testing framework (via xmake test)
• Compilation CI
• Documented code (doxygen style)

Build and run

Requirements:

• Windows (MSVC compiler) or Linux (GCC or Clang)
• xmake build system
  • For Windows, the installer is recommended
  • For Linux, run curl -fsSL https://xmake.io/shget.text | bash

Then build and run the default config:

xmake -y -v && xmake run

The solver should run and output the aerodynamic coefficients along with some time metrics:

reading plot3d mesh
number of panels: 4096
ns: 64
nc: 64
LHS: 12.106 ms
RHS: 4 us
Solve: 341.976 ms
Compute forces: 104 us
>>> Alpha: 5.0 | CL = 0.464887 CD = 0.005636 CMx = 1.157476 CMy = -0.017555 CMz = 0.101128
SOLVER RUN: 358.235 ms