Chapman–Jouguet condition
（重定向自Chapman Jouguet condition）
![](/Images/godic/202501/04/Chapman_Jouguet.svg2226.png")
The Chapman–Jouguet condition holds approximately in detonation waves in high explosives. It states that the detonation propagates at a velocity at which the reacting gases just reach sonic velocity (in the frame of the leading shock wave) as the reaction ceases.