FastWind
Rhino 2D Wind Simulation

A rapid wind-field evaluation tool powered by a 2D LBM solver. Automatic AIJ wind tunnel domain generation and building recognition. Multi-core parallel computing with automatic velocity contour output. Make wind analysis simpler and faster during the design stage.

Start 7-Day Free Trial Explore Features
2D LBM
Core Engine
AIJ
Standard Domain
16+
Wind Directions
∞
Parallel Speedup
Core Features

A powerful wind simulation toolkit

Built for architects and urban designers to make wind analysis simpler and faster.

🏗️

Automatic AIJ Wind Tunnel Domain

Generate an AIJ-compliant planar wind tunnel domain automatically from the project envelope and characteristic height H, with live preview controls.

🧭

Flexible Wind Direction Input

Use 16 preset directions (N, NNE, NE...) or custom angles, all handled consistently as wind-from input.

📐

Automatic Obstacle Projection

Project Rhino Breps onto the simulation grid automatically, build solid-cell masks, and filter valid closed contours intelligently.

⚡

Parallel Compute Acceleration

Switch between serial and parallel modes, adjust thread count to model size, and shorten solve times dramatically.

🎨

Refined Visualization

Display velocity fields as colored meshes with Jet colormaps, auto-aligned legends, and multiple display modes.

📊

Live Compute Feedback

Track progress bars, residuals, and velocity ranges with clear process feedback and result output.

LBM D2Q9 Solver Engine

A fast 2D Lattice Boltzmann Method solver based on the D2Q9 + BGK model, optimized for architectural wind environment analysis.

  • Configurable wind speed, grid size, and maximum iteration count.
  • Automatic residual monitoring and convergence checks.
  • Automatic output of key compute metrics.
D2Q9 velocity discretization and weighting diagram
D2Q9 velocity weights: center 4/9, axial 1/9, diagonal 1/36.

Parallel Compute Acceleration

For medium and large grids, switch between serial and parallel execution in one click and set your own thread count to reduce total solve time while keeping results consistent.

  • Compute mode: Serial / Parallel
  • Configurable thread count
  • Command-line timing and thread logs for review
  • Typical speedup: up to 3.71x with 8 threads
Multi-core CPU acceleration benchmark
Multi-core comparison: CPU1 = 760s, CPU2 = 433s (1.75x), CPU4 = 279s (2.72x), CPU8 = 213s (3.71x).

Intelligent Result Visualization

Multiple output modes and polished visual rendering make wind analysis results easy to read at a glance.

  • Full: full-grid display
  • Sampled: display by sampling step
  • Smooth: smooth shading display
  • Jet colormap velocity contours
Velocity contour and legend inside Rhino
Results written back to Rhino directly: velocity contours, legend, and compute metadata.
Plans

Choose the plan that fits

From free trials to enterprise deployment, scale with the workflow you need.

Trial

Free Trial

$ 0 / 7 days

Full feature access

  • Full LBM solving workflow
  • AIJ domain generation
  • Basic visualization output
  • Community support
  • Parallel computing
  • Commercial license
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Monthly

Pro Monthly

$ 2.99 / month

Flexible month-to-month billing

  • Full LBM solving workflow
  • AIJ domain generation
  • Advanced visualization output
  • Parallel compute acceleration
  • Email support
  • Priority technical support
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Yearly

Pro Yearly

$ 29.99 / year

Save 16%

  • Everything in Monthly
  • Commercial usage license
  • Priority technical support
  • Early access to new features
  • Ongoing updates
  • Exclusive user community
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Enterprise

Custom Enterprise

Contact Us

Best for teams

  • Everything in Yearly
  • Unlimited concurrent users
  • Dedicated technical advisor
  • Custom development support
  • Training and deployment services
Contact Sales
Use Cases

Where FastWind Fits

From concept design to scheme refinement, FastWind supports every stage.

🏢

Single Building Analysis

Compare the wind performance of different building forms and evaluate options quickly.

🏘️

District Wind Evaluation

Study wind interaction between building clusters and optimize layout and spacing.

🌆

Urban Block Renewal

Assess block-scale wind conditions under different incoming wind directions.

📚

Teaching and Research

Use 2D LBM demonstrations for education, foundational studies, and experiments.

Start faster wind analysis

Join hundreds of designers using FastWind to improve design efficiency.

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