combustion shock

[kəm′bəs·chən ‚shäk]

(engineering)

Shock resulting from abnormal burning of fuel in an internal combustion engine, caused by preignition or fuel-air detonation; or in a diesel engine, the uncontrolled burning of fuel accumulated in the combustion chamber.

References in periodicals archive ?

The blue area on the right indicates that the original premixed gas has not yet started to burn and is only affected by the disturbance of the left-side explosion combustion shock wave, and the temperature is relatively low.

Due to the impacts of the combustion shock wave and wall surface, it clearly shows that, as the flame continues to propagate backwards in the pipeline, its speed of propagation continues to decrease, and the curvature of the flame front is still decreasing in Figure 7, especially for the time points 23 and 25.

Numerical Study of Flame Propagation Morphology for Deflagration in the Pipeline Using Proper Orthogonal Decomposition

In addition, it can be found that the ration of propellant combustion in the total event is increasing with frequency, which is in accord with the characteristics of combustion shock wave.