Speed of sound

physics/speed_of_sound.py

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+"""
+Title : Calculating the speed of sound
+
+Description :
+    The speed of sound (c) is the speed that a sound wave travels
+    per unit time (m/s). During propagation, the sound wave propagates
+    through an elastic medium. Its SI unit is meter per second (m/s).
+
+    Only longitudinal waves can propagate in liquids and gas other then
+    solid where they also travel in  transverse wave. The following Algo-
+    rithem calculates the speed of sound in fluid depanding on the bulk
+    module and the density of the fluid.
+
+    Equation for calculating speed od sound in fluid:
+    c_fluid = (K_s*p)**0.5
+
+    c_fluid: speed of sound in fluid
+    K_s: isentropic bulk modulus
+    p: density of fluid
+
+
+
+Source : https://en.wikipedia.org/wiki/Speed_of_sound
+"""
+
+
+class SpeedOfSound:
+    @staticmethod
+    def fluid(fluid_density: float, bulk_modulus: float) -> float:
+        """
+        This method calculates the speed of sound in fluid -
+        This is calculated from the other two provided values
+        Examples:
+        Example 1 --> Water 20°C: bulk_moduls= 2.15MPa, fluid_density=998kg/m³
+        Example 2 --> Murcery 20°: bulk_moduls= 28.5MPa, fluid_density=13600kg/m³
+
+        >>> SpeedOfSound.fluid(bulk_modulus=2.15*10**9, fluid_density=998)
+        1467.7563207952705
+        >>> SpeedOfSound.fluid(bulk_modulus=28.5*10**9, fluid_density=13600)
+        1447.614670861731
+        """
+
+        if fluid_density <= 0:
+            raise ValueError("Impossible fluid density")
+        if bulk_modulus <= 0:
+            raise ValueError("Impossible bulk modulus")
+
+        speed_of_sound = (bulk_modulus / fluid_density) ** 0.5
+
+        return speed_of_sound
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod()