Regarding slide at around 32 min.: Sea water density increase with decreasing temperature. Effect of elasticity is missing.Otherwise great presentation, specially slide at around 47min.
Yeah, think of it this way. A denser object also means the particles are closer to one another. Sound is just a wave propagating through various mediums. So the closer the particles are then the faster it travels through a medium.
The relationship isn't that direct. In simple terms sound speed is proportional to sqrt(compressibility/density), same formula for a mass on a spring. Compressibility typically changes along with density, and sound speed changes depending on this ratio.
As pressure increases, the molecules of a substance come closer resulting in a higher density. On the other hand, when pressure decreases, the molecules become distant. Due to this, the density reduces. This occurs with water also.
Sorry for the dumb question..But why is it that increased depth that there is an increase in sound speed?
Regarding slide at around 32 min.: Sea water density increase with decreasing temperature. Effect of elasticity is missing.Otherwise great presentation, specially slide at around 47min.
does increase in density actually increase sound speed? I thought its the other way around 31:20
Yeah, think of it this way. A denser object also means the particles are closer to one another. Sound is just a wave propagating through various mediums. So the closer the particles are then the faster it travels through a medium.
The relationship isn't that direct. In simple terms sound speed is proportional to sqrt(compressibility/density), same formula for a mass on a spring. Compressibility typically changes along with density, and sound speed changes depending on this ratio.
18:15 The basics.
Great presentation
How can pressure increase cause an increase in density? Water is incompressible.
Refraction is shown exaggerated it can't bend backwards
As pressure increases, the molecules of a substance come closer resulting in a higher density. On the other hand, when pressure decreases, the molecules become distant. Due to this, the density reduces. This occurs with water also.
WOSC-44020 provides deep underwater communications with excellent immunity for external ambient light
Sir Can you please send this ppt?