Improvement methodology of predicting engine jet noise in engineering application

Abstract The typical methods for predicting rocket engine noise were comprehensively illustrated. Simultaneously including some modification, implement environmental prediction of any number, position via programming. For instance, in a liquid engine, field the double was predicted, results which compared with experimental data. We then evaluated advantages and disadvantages different analyzed source error. Finally, methodology jet proposed, can be applied to multiple engines. Given high accuracy on overall acoustic pressure spectrum, this method is great importance engineering application.