Wind Profile Calculator
Logarithmic profile · height-dependent wind speed & dynamic pressure
Parameters
Ref. Height
m
Wind Speed
m/s
Roughness Class (z₀)
0 — Water surfaces (0.0002 m)
0.5 — Open flat terrain (0.0024 m)
1 — Open agricultural land (0.03 m)
1.5 — Sparse buildings (0.055 m)
2 — Agricultural w/ buildings (0.1 m)
2.5 — Wooded agricultural land (0.2 m)
3 — Towns, forests (0.4 m)
3.5 — Large cities, tall buildings (0.6 m)
4 — Metropolis w/ skyscrapers (1.6 m)
Air Density
kg/m³
Calculate
v₂ = v₁ · ln(h₂/z₀) / ln(h₁/z₀)
v₁
ref. speed ·
h₁
ref. height ·
h₂
target height ·
z₀
roughness length
⚠ The logarithmic wind profile is valid for flat terrain and neutral atmospheric stratification. For complex topography,
CFD analysis
is recommended.
Contact us →
Roughness Classes
Class
z₀
Land Cover Type
0
0.0002
Water surfaces: seas, lakes
0.5
0.0024
Open flat terrain, concrete, runways
1
0.03
Open agricultural land, no fences
1.5
0.055
Agricultural land w/ sparse buildings
2
0.1
Agricultural land w/ buildings & hedges
2.5
0.2
Wooded agricultural land, many trees
3
0.4
Towns, villages, forests, rough terrain
3.5
0.6
Large cities with tall buildings
4
1.6
Metropolis with skyscrapers
150m Speed
—
m/s
100m Speed
—
m/s
150m Pressure
—
Pa
Vertical Wind Profile
Detailed Results
Height
Speed
Pressure
kg/m²
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Alkazar Engineering
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