Wind Engineering

Power-Law Wind Profile Hub-Height Wind Speed Extrapolator calculator

Power-Law Wind Profile Hub-Height Wind Speed Extrapolator engineering calculator.

Runnable This tool can run, but independent engineering verification has not been established.

Quick Answer

The power-law wind profile hub-height wind speed extrapolator calculator computes hub-height wind speed from the input values you provide.

Calculator

Hub-Height Wind Speed (m⁄s)
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Result Interpretation

Power-Law Wind Profile Hub-Height Wind Speed Extrapolator calculator computes Hub-Height Wind Speed in m/s using the defined engineering formula and the input values provided. Hub-Height Wind Speed is expressed in m/s. No universal acceptance threshold is defined by this calculator.

Worked Example

Verified calculation

Given:

  • Reference Wind Speed = 5
  • Turbine Hub Height = 80
  • Reference Height = 10
  • Wind Shear Exponent = 0.143

Expected Result:

  • Hub-Height Wind Speed = 6.7315003463839

Engineering Interpretation:

Under the given input conditions, the calculated result is: Hub-Height Wind Speed = 6.7315003463839 m/s.

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from deterministically validated test cases.

Formula / Method

hub-height wind speed = reference wind speed * pow(turbine hub height / reference height, wind shear exponent)

Hub-Height Wind Speed.

Variables

SymbolLabelRoleDescription
reference_wind_speed Reference Wind Speed INPUT Reference Wind Speed
hub_height Turbine Hub Height INPUT Turbine Hub Height
reference_height Reference Height INPUT Reference Height
shear_exponent Wind Shear Exponent INPUT Wind Shear Exponent
wind_speed Hub-Height Wind Speed OUTPUT Hub-Height Wind Speed

Calculation Steps

  1. Enter the reference wind speed in m/s.
  2. Enter the turbine hub height in m.
  3. Enter the reference height in m.
  4. Enter the wind shear exponent in dimensionless.
  5. Step 1: Compute hub-height wind speed.
  6. Read the hub-height wind speed (m/s) from the results.

Frequently Asked Questions

What does this calculator calculate?

The Power-Law Wind Profile Hub-Height Wind Speed Extrapolator calculator estimates Hub-Height Wind Speed based on the input parameters you provide

Why is reference wind speed important in this calculation?

reference wind speed is directly proportional to hub-height wind speed. When you enter reference wind speed in m/s, the calculator uses it in the engineering formula to compute the output

How should I interpret the result hub-height wind speed?

The calculator outputs hub-height wind speed in m/s. To convert to km/h, multiply the result by 3.6. The result is computed directly from the input values using the defined engineering formula

What units should I use for the inputs?

Enter each value in the units shown next to the input field: Reference Wind Speed (m/s), Turbine Hub Height (m), Reference Height (m), Wind Shear Exponent (dimensionless). Make sure all inputs use the specified units for consistent results

What assumptions does this calculator use?

This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment

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