Zeldovich–von Neumann–Döring detonation model

Summary

The Zeldovich–von Neumann–Döring model, or ZND model, describes the structure of a steady planar detonation. A non-reacting shock wave compresses the fresh gas to a high-pressure state, the von Neumann spike, and a reaction zone of finite length follows it. Through the reaction zone the pressure falls and the heat release accelerates the gas until the burnt state is reached. The model was proposed independently by Zeldovich, von Neumann and Döring in the early 1940s. It refines the Chapman–Jouguet theory, which treats the detonation as a single jump. See the definition.