Freestream Velocity for given total drag force Calculator

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Lift and Drag Requirements

Thrust and Power Requirements

✖Power is defined as the product of thrust force and velocity of aircraft.ⓘ Power [P]			+10% -10%
✖Drag Force is the resisting force experienced by an object moving through a fluid.ⓘ Drag Force [F_D]			+10% -10%

✖The Freestream Velocity is the velocity of air far upstream of an aerodynamic body, that is before the body has a chance to deflect, slow down or compress the air.ⓘ Freestream Velocity for given total drag force [V_∞]

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Formula

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Freestream Velocity for given total drag force

Formula

`"V"_{"∞"} = "P"/"F"_{"D"}`

Example

`"30.003m/s"="3000W"/"99.99N"`

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Freestream Velocity for given total drag force Solution

STEP 0: Pre-Calculation Summary

Formula Used

Freestream Velocity = Power/Drag Force
V_∞ = P/F_D
This formula uses 3 Variables

Variables Used

Freestream Velocity - (Measured in Meter per Second) - The Freestream Velocity is the velocity of air far upstream of an aerodynamic body, that is before the body has a chance to deflect, slow down or compress the air.
Power - (Measured in Watt) - Power is defined as the product of thrust force and velocity of aircraft.
Drag Force - (Measured in Newton) - Drag Force is the resisting force experienced by an object moving through a fluid.

STEP 1: Convert Input(s) to Base Unit

Power: 3000 Watt --> 3000 Watt No Conversion Required
Drag Force: 99.99 Newton --> 99.99 Newton No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V_∞ = P/F_D --> 3000/99.99

Evaluating ... ...

V_∞ = 30.00300030003

STEP 3: Convert Result to Output's Unit

30.00300030003 Meter per Second --> No Conversion Required

FINAL ANSWER

30.00300030003 ≈ 30.003 Meter per Second <-- Freestream Velocity

(Calculation completed in 00.004 seconds)

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Created by Vinay Mishra

Indian Institute for Aeronautical Engineering and Information Technology (IIAEIT), Pune

Vinay Mishra has created this Calculator and 300+ more calculators!

Verified by Sai Venkata Phanindra Chary Arendra

Vallurupalli Nageswara Rao Vignana Jyothi Institute of Engineering and Technology (VNRVJIET), Hyderabad

Sai Venkata Phanindra Chary Arendra has verified this Calculator and 300+ more calculators!

< 19 Lift and Drag Requirements Calculators

Lift coefficient for given minimum required thrust

Go Lift Coefficient = sqrt(pi*Oswald Efficiency Factor*Aspect Ratio of a wing*((Thrust/(Dynamic Pressure*Area))-Zero Lift Drag Coefficient))

Zero-lift drag coefficient for given lift coefficient

Go Zero Lift Drag Coefficient = (Thrust/(Dynamic Pressure*Area))-((Lift Coefficient^2)/(pi*Oswald Efficiency Factor*Aspect Ratio of a wing))

Zero-lift drag coefficient at minimum required thrust

Go Zero Lift Drag Coefficient = (Lift Coefficient^2)/(pi*Oswald Efficiency Factor*Aspect Ratio of a wing)

Lift-induced drag coefficient for given required thrust

Go Coefficient Of Drag Due to Lift = (Thrust/(Dynamic Pressure*Reference Area))-Zero Lift Drag Coefficient

Zero-lift drag coefficient for given required thrust

Go Zero Lift Drag Coefficient = (Thrust/(Dynamic Pressure*Reference Area))-Coefficient Of Drag Due to Lift

Lift for Unaccelerated Flight

Go Lift Force = Weight of Body-Thrust*sin(Thrust angle)

Coefficient of Drag for given thrust and weight

Go Drag Coefficient = Thrust*Lift Coefficient/Weight of Body

Coefficient of Lift for given thrust and weight

Go Lift Coefficient = Weight of Body*Drag Coefficient/Thrust

Drag for Level and Unaccelerated Flight at Negligible Thrust Angle

Go Drag Force = Dynamic Pressure*Area*Drag Coefficient

Lift for Level and Unaccelerated Flight at Negligible Thrust Angle

Go Lift Force = Dynamic Pressure*Area*Lift Coefficient

Drag for Level and Unaccelerated Flight

Go Drag Force = Thrust*(cos(Thrust angle))

Coefficient of Drag for given thrust-to-weight ratio

Go Drag Coefficient = Lift Coefficient*Thrust-to-Weight Ratio

Coefficient of Lift for given thrust-to-weight ratio

Go Lift Coefficient = Drag Coefficient/Thrust-to-Weight Ratio

Lift-to-drag ratio for given required thrust of aircraft

Go Lift-to-drag Ratio = Weight of Body/Thrust

Freestream Velocity for given total drag force

Go Freestream Velocity = Power/Drag Force

Total drag force for given required power

Go Drag Force = Power/Freestream Velocity

Freestream velocity for given required power

Go Freestream Velocity = Power/Thrust

Coefficient of Drag due to lift for minimum power required

Go Coefficient Of Drag Due to Lift = 3*Zero Lift Drag Coefficient

Zero-lift drag coefficient for minimum power required

Go Zero Lift Drag Coefficient = Coefficient Of Drag Due to Lift/3

Freestream Velocity for given total drag force Formula

Freestream Velocity = Power/Drag Force
V_∞ = P/F_D

How is freestream velocity measured?

In real-time measurements, the freestream velocity is measured through Pitot tubes. They are usually located either under the wing or right after the cabin of the airplane.

How to Calculate Freestream Velocity for given total drag force?

Freestream Velocity for given total drag force calculator uses Freestream Velocity = Power/Drag Force to calculate the Freestream Velocity, The Freestream Velocity for given total drag force in a steady, level flight is equal to the ratio of required power and total drag force of an aircraft. Freestream Velocity is denoted by V_∞ symbol.

How to calculate Freestream Velocity for given total drag force using this online calculator? To use this online calculator for Freestream Velocity for given total drag force, enter Power (P) & Drag Force (F_D) and hit the calculate button. Here is how the Freestream Velocity for given total drag force calculation can be explained with given input values -> 1.70017 = power__/99.99.

FAQ

What is Freestream Velocity for given total drag force?

The Freestream Velocity for given total drag force in a steady, level flight is equal to the ratio of required power and total drag force of an aircraft and is represented as V_∞ = P/F_D or Freestream Velocity = Power/Drag Force. Power is defined as the product of thrust force and velocity of aircraft & Drag Force is the resisting force experienced by an object moving through a fluid.

How to calculate Freestream Velocity for given total drag force?

The Freestream Velocity for given total drag force in a steady, level flight is equal to the ratio of required power and total drag force of an aircraft is calculated using Freestream Velocity = Power/Drag Force. To calculate Freestream Velocity for given total drag force, you need Power (P) & Drag Force (F_D). With our tool, you need to enter the respective value for Power & Drag Force and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Freestream Velocity?

In this formula, Freestream Velocity uses Power & Drag Force. We can use 1 other way(s) to calculate the same, which is/are as follows -

Freestream Velocity = Power/Thrust

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