03 Outdoor+

Create an air region for the UMF case. OutdoorPlus

Define simulation domain extents and refinement padding. OutdoorPlus

Select a building material from the list and override its properties.

Configure mesh refinement for building regions.

Build a solid building region for the UMF case: from the façade surface meshes, two material wall layers (outer + inner) are extruded inward to model heat and moisture transport through the building envelope.

Creates a STL mesh from geometry using the gmsh application. Useful to create healthy mesh topologies for building elements.

Generate a multi-resolution terrain mesh from input geometry with a solid base. OutdoorPlus

Create a soil-backed grass surface material for the urbanMicroclimateFoam terrain heat, radiation, and evapotranspiration model. OutdoorPlus

Configure mesh settings for terrain and underground regions. OutdoorPlus

Create a terrain region with materials and depth settings. OutdoorPlus

Select a terrain surface material from the list and override its properties. OutdoorPlus

Coupled evaporating water surface for urbanMicroclimateFoam. The water geometry becomes a named air patch that exchanges sensible heat and moisture with the air; water motion and a moving free surface are not solved. Requires an UMF build that includes the simpleWater model.

Configure mesh refinement for vegetation regions. OutdoorPlus

Define vegetation property coefficients for canopy modeling. Shows the recommended coefficients (Leaf Length, rsMin, kc) by default; right-click to show all coefficients (Cd, C, nEvapSides). OutdoorPlus

Create a vegetation region from tree crown solids. Pick a Tree Type preset for a typical leaf area density and foliage drag coefficient, or choose Custom and wire your own LAD. The output drives BOTH the Outdoor+ (OpenFOAM/UMF) case and the LBM Run component's Vegetation input, with consistent canopy drag. Library sources — LAD (crown-average, m²/m³): Sjöman et al. (2021) Arboricult. Urban For. 47(6), plant area index of 64 urban species; Klingberg et al. (2017) Urban For. Urban Green. 26, Gothenburg leaf area mapping; ENVI-met Albero plant database conventions; Zhang et al. (2018) Atmosphere 9(5):198 and Beijing For. Univ. J. (2017) ENVI-met validations for subtropical evergreens. Cd (per frontal leaf area, 0.1–0.3): Katul et al. (2004) Boundary-Layer Meteorol. 113; Mayhead (1973) Agric. Meteorol. 12, conifer wind-tunnel drag; Gillies et al. (2002) J. Geophys. Res. 107(D24), drag vs. wind speed and crown streamlining. Note: NIST TN 2039 (2019) reports Cd ≈ 2.8 against total projected area per volume — a different normalization; do not mix it with the Cd·LAD convention used here. OutdoorPlus

Prepare and run a UMF case. OutdoorPlus

Create, read, and manage an Outdoor+ (UMF microclimate) case. OutdoorPlus

Configure snappyHexMesh settings for the simulation. OutdoorPlus

Configure simulation control settings for UMF. OutdoorPlus

Define simulation timing and optional weather-driven time series. OutdoorPlus

Configure the view-factor discretization for radiation modeling. OutdoorPlus

Tests for buildings and trees for Eddy3D-OutdoorPlus simulation.

Deconstruct a MetaFOAM Region instance.