PROJECT TITLE :
Influence of Temperature on Acoustic Sound Speed and Attenuation of Seafloor Sand Sediment
The temperature dependence of the parameters at intervals an efficient density fluid model that includes the effects of granularity is employed to examine sound speed and attenuation of sand at intervals the temperature vary of one °C-30 °C. Analysis of the behavior of attenuation as a function of frequency and permeability over the above temperature vary offer some new insights. In specific, the attenuation coefficient will either increase or decrease with temperature relying on the physical parameters and the frequency range being examined. A relaxation frequency is defined that separates frequency ranges where attenuation temperature dependence changes. Below the relief frequency, attenuation will increase with temperature, and higher than this frequency, attenuation decreases with temperature. The analysis of the result of sand sediment physical parameters on acoustic properties versus temperature also reveals the distinctive role of permeability. An “attenuation transition permeability” is additionally defined. As temperature will increase, attenuation will increase if the static permeability is but the attenuation transition permeability and decreases if the static permeability is bigger than the attenuation transition permeability. The comparison of experimental knowledge sets with calculations using the temperature-dependent effective density fluid model indicates the dominant role of pore water both on the temperature-dependent sound speed and attenuation of sand sediment and offers support to use of a good-density-based mostly model.
Did you like this research project?
To get this research project Guidelines, Training and Code... Click Here