- #1
kkk
- 2
- 0
Hello. Just wondering how to calculate the sound speed in the atmosphere if I have temperature and pressure from the surface and all the way up to thermosphere?
How to calculate sound speed in atmosphere?
- Thread starter kkk
- Start date
-
- Tags
- Atmosphere Sound Speed
Click For Summary
Discussion Overview
The discussion revolves around calculating the speed of sound in the atmosphere using temperature and pressure data from the surface to the thermosphere. Participants explore various methods and resources to find the appropriate formulas and considerations involved in the calculation.
Discussion Character
- Exploratory, Technical explanation, Homework-related
Main Points Raised
- One participant inquires about the formula for calculating sound speed based on atmospheric temperature and pressure.
- Another participant suggests that density is a significant factor in determining sound speed, implying that it should be considered in calculations.
- A different participant mentions having read various articles but struggles to find a formula that specifically relates sound speed to pressure and temperature.
- Several participants provide links to interactive tools and engineering resources that may assist in calculating sound speed, indicating that practical limits are often imposed in such calculations.
- One participant emphasizes the need to understand concepts like the 'standard atmosphere' when using certain resources.
Areas of Agreement / Disagreement
Participants do not reach a consensus on a specific formula or method for calculating sound speed, and multiple viewpoints and resources are presented without resolution.
Contextual Notes
Participants express uncertainty regarding the relationship between sound speed, temperature, pressure, and density, and there are references to practical limits and the need for understanding specific atmospheric models.
- #2
davenn
Science Advisor
Gold Member
- 9,715
- 11,761
kkk said:
hi there
welcome to PF
what reading have you done so far to find the formula to use ?
- #3
kkk
- 2
- 0
hello, and thank you for answering me.
I have read different articles, but can't find formula depending on pressure and temperature? I know how to calculate the effective sound speed, but not the the just the sound speed.
I have read different articles, but can't find formula depending on pressure and temperature? I know how to calculate the effective sound speed, but not the the just the sound speed.
- #4
davenn
Science Advisor
Gold Member
- 9,715
- 11,761
I googled ... calculating speed of sound in the atmosphere ... which is what your Q was
got lots of hits and formula
Hint ... density plays a big part
got lots of hits and formula
Hint ... density plays a big part
- #5
jim mcnamara
Mentor
- 4,789
- 3,852
Play with this interactive site: https://www.digitaldutch.com/atmoscalc/
AFAIK practical limits are usually imposed - examples: max meters above and max meters below sea level.
This app will create a table for you.
This: https://www.engineeringtoolbox.com/speed-sound-d_82.html
directly answers your question, but you need to understand a bit about it, like a 'standard atmosphere'. This is an engineering site and has lots of good links
AFAIK practical limits are usually imposed - examples: max meters above and max meters below sea level.
This app will create a table for you.
This: https://www.engineeringtoolbox.com/speed-sound-d_82.html
directly answers your question, but you need to understand a bit about it, like a 'standard atmosphere'. This is an engineering site and has lots of good links