High-Enthalpy Inlet Experiment and Critical Fuel-Flux Model

4 HIGH-ENTHALPY INLET EXPERIMENT AND CRITICAL FUEL-FLUX MODEL 

The high-enthalpy inlet experiments were conducted using the NAWC combustor shown in Fig. 16.1c. The characteristic features are similar to the UMD 

The essence of the critical fuel-flux model is based on the balance between acoustic energy contained in the oscillation cycle and the attenuation of acoustic energy using properly timed heat release from active control. Using this model, the change in critical fuel flux for sustaining control authority was derived as 

The results from heated inlet experiments were in good agreement with the model prediction (Fig. 16.11). 

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