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Flow Velocity given Theoretical Propulsive efficiency Formula

GoFlow Velocity given Thrust on Propeller Formula

GoFlow Velocity given Rate of Flow through Propeller Formula

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Flow Velocity is the velocity of the flow of any fluid. Check FAQs

V f = \frac{V}{\frac{2}{η} - 1}

V_f - Flow Velocity?V - Absolute Velocity of Issuing Jet?η - Efficiency of Jet?

Flow Velocity given Theoretical Propulsive efficiency Example

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Here is how the Flow Velocity given Theoretical Propulsive efficiency equation looks like with Values.

Here is how the Flow Velocity given Theoretical Propulsive efficiency equation looks like with Units.

Here is how the Flow Velocity given Theoretical Propulsive efficiency equation looks like.

4 = \frac{6}{\frac{2}{0.8} - 1}

4m/s = \frac{6m/s}{\frac{2}{0.8} - 1}

4 = \frac{6}{\frac{2}{0.8} - 1}

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Flow Velocity given Theoretical Propulsive efficiency Solution

Follow our step by step solution on how to calculate Flow Velocity given Theoretical Propulsive efficiency?

FIRST Step Consider the formula

V f = \frac{V}{\frac{2}{η} - 1}

Next Step Substitute values of Variables

∴

V f = \frac{6m/s}{\frac{2}{0.8} - 1}

Next Step Prepare to Evaluate

∴

V f = \frac{6}{\frac{2}{0.8} - 1}

LAST Step Evaluate

∴

V f = 4m/s

Flow Velocity given Theoretical Propulsive efficiency Formula Elements

Variables

Flow Velocity

Flow Velocity is the velocity of the flow of any fluid.

Symbol: V_f

Measurement: SpeedUnit: m/s

Note: Value can be positive or negative.

Formulas to find Flow Velocity

Absolute Velocity of Issuing Jet

Absolute Velocity of Issuing Jet is actual velocity of jet used in propeller.

Symbol: V

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Absolute Velocity of Issuing Jet

Efficiency of Jet

Efficiency of Jet is an electric motor is defined as the ratio of usable shaft power to electric input power.

Symbol: η

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Efficiency of Jet

Other Formulas to find Flow Velocity

Go Flow Velocity given Thrust on Propeller

V f = - (\frac{Ft}{ρ Water \cdot q flow}) + V

Go Flow Velocity given Rate of Flow through Propeller

V f = (8 \cdot \frac{q flow}{π \cdot D^{2}}) - V

Go Flow Velocity given Power Lost

V f = V - \sqrt{(\frac{P loss}{ρ Fluid \cdot q flow \cdot 0.5})}

Other formulas in Momentum Theory of Propellers category

Go Thrust on Propeller

Ft = (\frac{π}{4}) \cdot (D^{2}) \cdot dP

Go Diameter of Propeller given Thrust on Propeller

D = \sqrt{(\frac{4}{π}) \cdot \frac{Ft}{dP}}

Go Rate of Flow through Propeller

Q = (\frac{π}{8}) \cdot (D^{2}) \cdot (V + V f)

Go Output Power given Rate of Flow through Propeller

P out = ρ Water \cdot q flow \cdot V f \cdot (V - V f)

How to Evaluate Flow Velocity given Theoretical Propulsive efficiency?

Flow Velocity given Theoretical Propulsive efficiency evaluator uses Flow Velocity = Absolute Velocity of Issuing Jet/(2/Efficiency of Jet-1) to evaluate the Flow Velocity, The Flow Velocity given Theoretical Propulsive Efficiency is defined as flow velocity of the stream at jet point. Flow Velocity is denoted by V_f symbol.

How to evaluate Flow Velocity given Theoretical Propulsive efficiency using this online evaluator? To use this online evaluator for Flow Velocity given Theoretical Propulsive efficiency, enter Absolute Velocity of Issuing Jet (V) & Efficiency of Jet (η) and hit the calculate button.

FAQs on Flow Velocity given Theoretical Propulsive efficiency

What is the formula to find Flow Velocity given Theoretical Propulsive efficiency?

The formula of Flow Velocity given Theoretical Propulsive efficiency is expressed as Flow Velocity = Absolute Velocity of Issuing Jet/(2/Efficiency of Jet-1). Here is an example- 5.333333 = 6/(2/0.8-1).

How to calculate Flow Velocity given Theoretical Propulsive efficiency?

With Absolute Velocity of Issuing Jet (V) & Efficiency of Jet (η) we can find Flow Velocity given Theoretical Propulsive efficiency using the formula - Flow Velocity = Absolute Velocity of Issuing Jet/(2/Efficiency of Jet-1).

What are the other ways to Calculate Flow Velocity?

Here are the different ways to Calculate Flow Velocity-

Flow Velocity=-(Thrust Force/(Water Density*Rate of Flow))+Absolute Velocity of Issuing Jet
Flow Velocity=(8*Rate of Flow/(pi*Diameter of Turbine^2))-Absolute Velocity of Issuing Jet
Flow Velocity=Absolute Velocity of Issuing Jet-sqrt((Power Loss/(Density of Fluid*Rate of Flow*0.5)))

Can the Flow Velocity given Theoretical Propulsive efficiency be negative?

Yes, the Flow Velocity given Theoretical Propulsive efficiency, measured in Speed can be negative.

Which unit is used to measure Flow Velocity given Theoretical Propulsive efficiency?

Flow Velocity given Theoretical Propulsive efficiency 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 Flow Velocity given Theoretical Propulsive efficiency can be measured.

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