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Wind Speed at Height of 10 m is the ten-meter wind speed measured ten meters above the top of the datum of consideration. It's a standard reference height for wind measurements in meteorology and engineering applications.
The calculator uses the formula:
Where:
Explanation: This formula calculates the wind speed at 10 meters height based on the drag coefficient, which quantifies the drag or resistance of an object in a fluid environment.
Details: Accurate wind speed calculation at standard heights is crucial for various applications including wind energy assessment, structural design, atmospheric studies, and environmental impact assessments.
Tips: Enter the drag coefficient value (dimensionless). The value must be valid and greater than or equal to zero for accurate calculation.
Q1: What is a typical range for drag coefficient?
A: Drag coefficient values vary widely depending on the object shape and flow conditions, typically ranging from about 0.001 for streamlined bodies to over 2.0 for bluff bodies.
Q2: Why is 10 meters a standard height for wind measurement?
A: 10 meters is a standard reference height that minimizes ground effects while being practical for measurement instruments and consistent with international meteorological standards.
Q3: How does wind speed vary with height?
A: Wind speed generally increases with height due to reduced surface friction. This variation is often described by the wind profile power law or logarithmic wind profile.
Q4: What factors affect drag coefficient?
A: Drag coefficient is influenced by object shape, surface roughness, Reynolds number, flow regime (laminar or turbulent), and fluid properties.
Q5: Can this formula be used for all flow conditions?
A: This specific formula is designed for particular applications and may not be universally applicable. Always verify the formula's suitability for your specific use case.