Authors: Alberto Grande, Francisco Martinez, Keivan Karimi
History:
Definition:As an object moves through a gas, the gas molecules are deflected around the object. If the speed of the object is much less than the speed of sound of the gas, the density of the gas remains constant and the flow of gas can be described by conserving momentum and energy. As the speed of the object increases towards the speed of sound, we must consider compressibility effects on the gas. The density of the gas varies locally as the gas is compressed by the object
Applications:
Extracorporeal shock wave lithotripsy (ESWL) is one of the well-known applications of shock waves. In addition to this success, , shock waves are applied to treat cancer, orthopaedic surgery in recent years. In brain neuro-surgery a revasculariztion of cerebral thrombosis is going to be established. Many interesting problems remained unresolved and its further improvements are required in order to achieve successful clinical applications
Example:
Photos:
http://edgerton-digital-collections.org/?s=hee-sc-09001#hee-sc-09001
Why?
Formulas:
Mach Number:
http://www.grc.nasa.gov/WWW/k-12/airplane/mach.html
Video:
References:
DRAFT:
http://videos.howstuffworks.com/discovery/29379-assignment-discovery-shock-wave-video.htm