Shock / Detonation Comparison 
 
 
Shock:
- Is Supersonic wrt Gases in Front
 - Is Subsonic wrt Gases in Back
 - Overtakes Disturbances in Front
 - Is Overtaken by Disturbances Behind 
 
Detonation (Chapman Jouget):
- Is Supersonic wrt Gases in Front
 - Is Followed by Combustion
 - Is Sonic wrt Gases in Back 
 - Overtakes Disturbances in Front
 - Is Not Overtaken by Disturbances Behind