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Basic Wind given Velocity Pressure Formula

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Basic Wind Speed is the wind speed corresponding to a 3-s gust speed at 33 ft above the ground in Exposure C. Check FAQs

V B = \sqrt{\frac{q}{0.00256 \cdot K z \cdot K zt \cdot K d \cdot I}}

V_B - Basic Wind Speed?q - Velocity Pressure?K_z - Velocity Exposure Coefficient?K_zt - Topographic Factor?K_d - Wind Directionality Factor?I - Importance Factor for End Use?

Basic Wind given Velocity Pressure Example

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Here is how the Basic Wind given Velocity Pressure equation looks like with Values.

Here is how the Basic Wind given Velocity Pressure equation looks like with Units.

Here is how the Basic Wind given Velocity Pressure equation looks like.

29.6107 = \sqrt{\frac{20}{0.00256 \cdot 0.85 \cdot 25 \cdot 0.78 \cdot 0.8}}

29.6107m/s = \sqrt{\frac{20pdl/ft²}{0.00256 \cdot 0.85 \cdot 25 \cdot 0.78 \cdot 0.8}}

29.6107 = \sqrt{\frac{20}{0.00256 \cdot 0.85 \cdot 25 \cdot 0.78 \cdot 0.8}}

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Basic Wind given Velocity Pressure Solution

Follow our step by step solution on how to calculate Basic Wind given Velocity Pressure?

FIRST Step Consider the formula

V B = \sqrt{\frac{q}{0.00256 \cdot K z \cdot K zt \cdot K d \cdot I}}

Next Step Substitute values of Variables

∴

V B = \sqrt{\frac{20pdl/ft²}{0.00256 \cdot 0.85 \cdot 25 \cdot 0.78 \cdot 0.8}}

Next Step Convert Units

∴

V B = \sqrt{\frac{29.7633Pa}{0.00256 \cdot 0.85 \cdot 25 \cdot 0.78 \cdot 0.8}}

Next Step Prepare to Evaluate

∴

V B = \sqrt{\frac{29.7633}{0.00256 \cdot 0.85 \cdot 25 \cdot 0.78 \cdot 0.8}}

Next Step Evaluate

∴

V B = 29.6106978052379m/s

LAST Step Rounding Answer

∴

V B = 29.6107m/s

Basic Wind given Velocity Pressure Formula Elements

Variables

Functions

Basic Wind Speed

Basic Wind Speed is the wind speed corresponding to a 3-s gust speed at 33 ft above the ground in Exposure C.

Symbol: V_B

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Basic Wind Speed

Velocity Pressure

Velocity Pressure is the pressure required to accelerate air from zero velocity to some velocity and is proportional to the kinetic energy of the air stream.

Symbol: q

Measurement: PressureUnit: pdl/ft²

Note: Value should be greater than 0.

Formulas to find Velocity Pressure

Velocity Exposure Coefficient

Velocity Exposure Coefficient is evaluated at some height z.

Symbol: K_z

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Velocity Exposure Coefficient

Topographic Factor

Topographic Factor are also called indirect factors as they influence the growth and development of organisms by bringing variations in climatic factors.

Symbol: K_zt

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Topographic Factor

Wind Directionality Factor

Wind Directionality Factor reflects the fact that the climatologically and aerodynamically or dynamically most unfavourable wind directions typically do not coincide.

Symbol: K_d

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Wind Directionality Factor

Importance Factor for End Use

Importance Factor for End Use is the factor whose value lies in range 0.8 to 1.2.

Symbol: I

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Importance Factor for End Use

sqrt

A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.

Syntax: sqrt(Number)

Other formulas in Wind Loads category

Go Equivalent Static Design Wind Pressure

p = q \cdot G \cdot C p

Go Velocity Pressure using Wind Pressure

q = \frac{p}{G \cdot C p}

Go Gust Response Factor using Wind Pressure

G = \frac{p}{q \cdot C p}

Go Pressure Coefficient using Wind Pressure

C p = \frac{p}{q \cdot G}

How to Evaluate Basic Wind given Velocity Pressure?

Basic Wind given Velocity Pressure evaluator uses Basic Wind Speed = sqrt(Velocity Pressure/(0.00256*Velocity Exposure Coefficient*Topographic Factor*Wind Directionality Factor*Importance Factor for End Use)) to evaluate the Basic Wind Speed, The Basic Wind given Velocity Pressure is defined as the basic wind when we have a prior info velocity pressure and other factors affecting it like topographic factor, importance factor etc. Basic Wind Speed is denoted by V_B symbol.

How to evaluate Basic Wind given Velocity Pressure using this online evaluator? To use this online evaluator for Basic Wind given Velocity Pressure, enter Velocity Pressure (q), Velocity Exposure Coefficient (K_z), Topographic Factor (K_zt), Wind Directionality Factor (K_d) & Importance Factor for End Use (I) and hit the calculate button.

FAQs on Basic Wind given Velocity Pressure

What is the formula to find Basic Wind given Velocity Pressure?

The formula of Basic Wind given Velocity Pressure is expressed as Basic Wind Speed = sqrt(Velocity Pressure/(0.00256*Velocity Exposure Coefficient*Topographic Factor*Wind Directionality Factor*Importance Factor for End Use)). Here is an example- 29.6107 = sqrt(29.7632788711526/(0.00256*0.85*25*0.78*0.8)).

How to calculate Basic Wind given Velocity Pressure?

With Velocity Pressure (q), Velocity Exposure Coefficient (K_z), Topographic Factor (K_zt), Wind Directionality Factor (K_d) & Importance Factor for End Use (I) we can find Basic Wind given Velocity Pressure using the formula - Basic Wind Speed = sqrt(Velocity Pressure/(0.00256*Velocity Exposure Coefficient*Topographic Factor*Wind Directionality Factor*Importance Factor for End Use)). This formula also uses Square Root (sqrt) function(s).

Can the Basic Wind given Velocity Pressure be negative?

No, the Basic Wind given Velocity Pressure, measured in Speed cannot be negative.

Which unit is used to measure Basic Wind given Velocity Pressure?

Basic Wind given Velocity Pressure is usually measured using the Meter per Second[m/s] for Speed. Meter per Minute[m/s], Meter per Hour[m/s], Kilometer per Hour[m/s] are the few other units in which Basic Wind given Velocity Pressure can be measured.

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Basic Wind given Velocity Pressure Formula

Basic Wind given Velocity Pressure Example

Basic Wind given Velocity Pressure Solution

Basic Wind given Velocity Pressure Formula Elements

Other formulas in Wind Loads category

How to Evaluate Basic Wind given Velocity Pressure?

FAQs on Basic Wind given Velocity Pressure

Variable Name