Speed of Sound Downstream of Sound Wave Formula

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Sound Speed Downstream refers to the speed of sound in a medium after passing through a sound wave or disturbance. Check FAQs
a2=(γ-1)(u12-u222+a12γ-1)
a2 - Sound Speed Downstream?γ - Specific Heat Ratio?u1 - Flow Velocity Upstream of Sound?u2 - Flow Velocity Downstream of Sound?a1 - Sound Speed Upstream?

Speed of Sound Downstream of Sound Wave Example

With values
With units
Only example

Here is how the Speed of Sound Downstream of Sound Wave equation looks like with Values.

Here is how the Speed of Sound Downstream of Sound Wave equation looks like with Units.

Here is how the Speed of Sound Downstream of Sound Wave equation looks like.

31.9218Edit=(1.4Edit-1)(80Edit2-45Edit22+12Edit21.4Edit-1)
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Speed of Sound Downstream of Sound Wave Solution

Follow our step by step solution on how to calculate Speed of Sound Downstream of Sound Wave?

FIRST Step Consider the formula
a2=(γ-1)(u12-u222+a12γ-1)
Next Step Substitute values of Variables
a2=(1.4-1)(80m/s2-45m/s22+12m/s21.4-1)
Next Step Prepare to Evaluate
a2=(1.4-1)(802-4522+1221.4-1)
Next Step Evaluate
a2=31.9217793990247m/s
LAST Step Rounding Answer
a2=31.9218m/s

Speed of Sound Downstream of Sound Wave Formula Elements

Variables
Functions
Sound Speed Downstream
Sound Speed Downstream refers to the speed of sound in a medium after passing through a sound wave or disturbance.
Symbol: a2
Measurement: SpeedUnit: m/s
Note: Value can be positive or negative.
Specific Heat Ratio
The Specific Heat Ratio is the ratio of the heat capacity at constant pressure to heat capacity at constant volume of the flowing fluid for non-viscous and compressible flow.
Symbol: γ
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Flow Velocity Upstream of Sound
Flow Velocity Upstream of Sound represents the velocity of a fluid flow or airflow before being influenced by a sound wave.
Symbol: u1
Measurement: SpeedUnit: m/s
Note: Value can be positive or negative.
Flow Velocity Downstream of Sound
Flow Velocity Downstream of Sound represents the velocity of a fluid flow or airflow after being influenced by a sound wave.
Symbol: u2
Measurement: SpeedUnit: m/s
Note: Value should be greater than 0.
Sound Speed Upstream
Sound Speed Upstream refers to the speed of sound in a medium before passing through a sound wave.
Symbol: a1
Measurement: SpeedUnit: m/s
Note: Value can be positive or negative.
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 Governing Equations and Sound Wave category

​Go Speed of Sound
a=γ[R-Dry-Air]Ts
​Go Mach Number
M=Vba
​Go Mach Angle
μ=asin(1M)
​Go Mayer's Formula
R=Cp-Cv

How to Evaluate Speed of Sound Downstream of Sound Wave?

Speed of Sound Downstream of Sound Wave evaluator uses Sound Speed Downstream = sqrt((Specific Heat Ratio-1)*((Flow Velocity Upstream of Sound^2-Flow Velocity Downstream of Sound^2)/2+Sound Speed Upstream^2/(Specific Heat Ratio-1))) to evaluate the Sound Speed Downstream, The Speed of Sound Downstream of Sound Wave formula calculates the flow velocity downstream of the sound wave by using the relationship between the Mach number and the speed of sound, considering that the flow is isentropic. It indicates how the flow velocity behind the sound wave relates to the speed of sound in the medium. Sound Speed Downstream is denoted by a2 symbol.

How to evaluate Speed of Sound Downstream of Sound Wave using this online evaluator? To use this online evaluator for Speed of Sound Downstream of Sound Wave, enter Specific Heat Ratio (γ), Flow Velocity Upstream of Sound (u1), Flow Velocity Downstream of Sound (u2) & Sound Speed Upstream (a1) and hit the calculate button.

FAQs on Speed of Sound Downstream of Sound Wave

What is the formula to find Speed of Sound Downstream of Sound Wave?
The formula of Speed of Sound Downstream of Sound Wave is expressed as Sound Speed Downstream = sqrt((Specific Heat Ratio-1)*((Flow Velocity Upstream of Sound^2-Flow Velocity Downstream of Sound^2)/2+Sound Speed Upstream^2/(Specific Heat Ratio-1))). Here is an example- 31.92178 = sqrt((1.4-1)*((80^2-45^2)/2+12^2/(1.4-1))).
How to calculate Speed of Sound Downstream of Sound Wave?
With Specific Heat Ratio (γ), Flow Velocity Upstream of Sound (u1), Flow Velocity Downstream of Sound (u2) & Sound Speed Upstream (a1) we can find Speed of Sound Downstream of Sound Wave using the formula - Sound Speed Downstream = sqrt((Specific Heat Ratio-1)*((Flow Velocity Upstream of Sound^2-Flow Velocity Downstream of Sound^2)/2+Sound Speed Upstream^2/(Specific Heat Ratio-1))). This formula also uses Square Root (sqrt) function(s).
Can the Speed of Sound Downstream of Sound Wave be negative?
Yes, the Speed of Sound Downstream of Sound Wave, measured in Speed can be negative.
Which unit is used to measure Speed of Sound Downstream of Sound Wave?
Speed of Sound Downstream of Sound Wave 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 Speed of Sound Downstream of Sound Wave can be measured.
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