A Model for Reactions in Turbulent Jets: Effects of Reynolds, Schmidt, and Damköhler Numbers

Data from several recent experiments on mixing and chemical reactions in turbulent shear layers and jets is discussed in detail and used to formulate a picture of the path from the freestream to the molecularly mixed State. A model is proposed which incorporates the essential steps in this path and which appears to provide a framework for understanding the major effects of Reynolds, Schmidt, and Damköhler numbers on the chemical reaction. A simplified version of the model reproduces the observed Reynolds number dependence of nitric oxide production in turbulent fuel jets