File:Speed of sound in water.svg
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Original file (SVG file, nominally 720 × 540 pixels, file size: 36 KB)
Summary
| Description |
English: Graph of the speed of sound in water vs temperature. Tabulated values (circle markers) from "The Engineering Toolbox" [1].
Smooth continuous line is a 3rd degree polynomial fit (see below) calculated on the tabulated data, accurate within 0.1%.
Español: Gráfico de la rapidez del sonido en el agua versus temperatura. Los datos tabulados (círculos) se obtuvieron de "The Egineering Toolbox" [2].
La línea continua es un ajuste polinomial de orden 3 (ver abajo) calculado a partir de los datos tabulados, la precisión es del 0.1%.
C(T) = a0 + a1T + a2T2 + a3T3 (m/s) """
Plot of the speed of sound versus temperature in water
The data is obtained from "The Engineering Toolbox" [1]_
References
----------
.. [1] The Engineering Toolbox. Water - Speed of Sound.
Accesed: April 27, 2015.
http://www.engineeringtoolbox.com/sound-speed-water-d_598.html
"""
import numpy as np
import matplotlib.pyplot as plt
from matplotlib import rcParams
rcParams['font.family'] = 'serif'
rcParams['font.size'] = 16
data = np.array([
[ 0., 1403.],
[ 5., 1427.],
[ 10., 1447.],
[ 20., 1481.],
[ 30., 1507.],
[ 40., 1526.],
[ 50., 1541.],
[ 60., 1552.],
[ 70., 1555.],
[ 80., 1555.],
[ 90., 1550.],
[ 100., 1543.]])
temp = data[:, 0]
vel = data[:, 1]
a3, a2, a1, a0 = np.polyfit(temp, vel, 3)
temp_fit = np.linspace(0,100)
vel_fit = a0 + a1*temp_fit + a2*temp_fit**2 + a3*temp_fit**3
plt.plot(temp, vel, 'o')
plt.plot(temp_fit, vel_fit, 'k')
plt.grid(True)
plt.xlabel(r"Temperature ($^\circ$C)")
plt.ylabel(r"Speed (m/s)")
plt.savefig("Speed_of_sound_in_water.svg")
|
| Date | |
| Source | Own work |
| Author | K. Krallis, SV1XV |
Licensing
This file is licensed under the Creative Commons Attribution 1.0 Generic license.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:16, 27 April 2015 | | 720 × 540 (36 KB) | Nicoguaro | Similar formatting to other plots in the article. Added Python code (and data) for the automatic generation of the file. |
| 15:24, 26 August 2014 |  | 757 × 591 (52 KB) | Sv1xv | {{Information |Description ={{en|1=Graph of the velocity of sound in water vs temperature. Original values and 3rd degree polynomial fit on data from "The Engineering Toolbox" [http://www.engineeringtoolbox.com/sound-speed-water-d_598.html]. Smoothe... |
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