The phrase "acoustic speed" is correct and usable in written English.
It can be used in contexts related to sound propagation, particularly in physics or engineering discussions about how sound travels through different mediums.
Example: "The acoustic speed in water is significantly higher than in air, which affects how we perceive sound underwater."
Alternatives: "speed of sound" or "sound velocity".
Finally, the gas leakage is located by the TDOA and the frequency-dependant acoustic speed of real-time determination instead of constant acoustic speed.
Consequently, for the proposed scheme, the constant acoustic speed is no longer a prerequisite.
The dust velocity (tilde{U}= u,v,w)) is normalized to dust acoustic speed (C_s=sqrt{frac{T_i}{m}}) and plasma potential (phi ) is normalized to (T_i/e).
This plasma tidal wave propagated into the plasma at the ion acoustic speed and its amplitude decreased exponentially with distance from the target.
In practice, the acoustic speed is frequency-varying due to the dispersions of gas-leak-induced acoustic waves, and thus the assumption is not supported.
The correlation-based location methods are widely used in leak detection of the pipelines assuming that the acoustic speed has been known and constant.
The model accounts for finite acoustic speeds in the constituent phases, which typically lead to transonic/supersonic flow and associated compressibility phenomena such as shock formation in the mixture region.
Along with the analysis of the hydrodynamic patterns it is also demonstrated that when one is concerned with the highest pressure attained inside the shell, the most dangerous combination of the parameters occurs when the ratio of the internal and external acoustic speeds is close to 0.48, with the respective pressure exceeding the maximum incident pressure by more than 110percentt.
It is also observed that the maximum tensile stress is very sensitive to the change of the ratio of the acoustic speeds in the internal and external fluids, with as little an increase of the latter as 13percentt resulting in more than doubling of the former in some cases.
This velocity is close to the mean ion-acoustic speed in the decaying plasma.
The spectrum related with the type-1 irregularities shows a narrow spectral width, with its center of distribution close to the ion-acoustic speed (≈360 m/s).
