Building wind analysis
Simulate how wind interacts with buildings and structures.
Basic building flow
"Simulate wind at 15 m/s hitting a 30-meter tall rectangular building (20m wide, 15m deep). Show me the pressure distribution on the facades and velocity streamlines around the building."
What SimPilot does: Sets up an incompressible RANS simulation with simpleFoam, k-epsilon turbulence model, appropriate domain size (typically 5H upstream, 15H downstream), and atmospheric boundary layer inlet profile.
Building cluster
"I have three buildings of heights 20m, 35m, and 25m arranged in an L-shape. Simulate wind from the northwest at 20 m/s and identify areas of high wind speed at pedestrian level (2m height)."
What SimPilot does: Creates the multi-building geometry, generates a refined mesh around the buildings, and sets up a pedestrian comfort analysis with velocity probes at 2m height.
Vehicle aerodynamics
Car aerodynamics
"Run an external aerodynamics simulation of a simplified car shape (Ahmed body with 25-degree slant angle) at 30 m/s. Calculate the drag coefficient."
What SimPilot does: Uses simpleFoam with k-omega SST turbulence model, generates a refined mesh around the body with boundary layers, and computes force coefficients.
Drone propeller
"Simulate airflow around a drone propeller blade at 5000 RPM. The blade is 15cm long. Show me the thrust distribution."
What SimPilot does: Sets up a rotating reference frame (MRF) simulation with pimpleFoam, appropriate mesh refinement near the blade tips, and computes thrust and torque.
Airfoil simulations
Basic airfoil
"Simulate airflow over a NACA 0012 airfoil at 10 m/s, 5 degrees angle of attack. Reynolds number about 1 million."
What SimPilot does: Creates a C-type mesh around the airfoil profile, sets up simpleFoam with k-omega SST, and computes lift and drag coefficients.
Airfoil comparison
"Compare the lift-to-drag ratio of NACA 0012 and NACA 4412 airfoils at angles of attack 0, 5, 10, and 15 degrees at Re=500,000."
What SimPilot does: Uses the batch simulation system to run 8 cases in parallel (2 airfoils x 4 angles), then generates a comparison table with Cl, Cd, and L/D ratios.
For real-world geometries, upload a STEP or STL file instead of describing the shape. SimPilot will automatically analyze the geometry and set up appropriate mesh refinement.