Acoustics: Sound Waves and Propagation
Learn about sound propagation in fluids, discuss sound power, sound intensity and boundaries in this free online course.Publisher: NPTEL
CertificationView course modules
This free online course on Sound Waves and Propagation will introduce you to the world of sound and its many uses and laws that govern it. You will study the propagation of sound waves in fluids and how they interact with various mediums. You will study harmonic plane waves and learn the equations and calculations of particle velocity and wave numbers.
Next, you will study the intensity and power of sound and how to manipulate them, as well as manipulating sound fields and how they interact with surface boundaries. This course will also deal with the basic terminology of sound waves and concentrates particularly on the transmission of standing waves.
Finally, you will study Snell's Law and wave refraction, which is a major part of all wave study, from the electromagnetic spectrum to sound waves. Snell's Law allows you to calculate angles of refraction with different mediums and the angle of incident of the waves. Undergraduates and post graduates alike, with a passion for acoustics will enjoy this course.Start Course Now
An Introduction to Sound Waves
An Introduction to Sound Waves - Learning Outcomes
Sound Wave Propagation in Fluids
Harmonic Plane Acoustic Waves
Sound Waves: Problems, Power and Intensity
An Introduction to Sound Waves - Lesson Summary
Sound Propagation at Medium Boundaries
Sound Propagation at Medium Boundaries - Learning Outcomes
Sound Field at Boundary Surfaces
Sound Field at Boundary Surfaces - Special Cases
Standing Waves and Modes
Sound Propagation at Medium Boundaries - Lesson Summary
On completion of this course, you will be able to:
- Explain the fundamentals of acoustic and sound wave propagation in fluids.
- Define the difference in terminologies such as acoustics, waves and sound waves.
- Describe the various types of waves you get in matter.
- Explain what happens when a sound wave propagates through a fluid medium.
- Solve acoustic wave equations for a fluid medium.
- Discuss what happens when a wave encounters a boundary in two different fluid media.
- Recall the difference between sound intensity and sound power.
- Explain terminologies such as reflection, transmission, absorption and impedance.
- Explain Snell's Law for Wave Refraction.
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