(ANOPP2v1.4.0) Aircraft NOise Prediction Program (ANOPP2)(LAR-18567-1)

The next generation Aircraft NOise Prediction Program (ANOPP), called ANOPP2, provides the capability and a framework to integrate acoustic approaches for aircraft noise component prediction, propulsion system installation effects, and overall sound propagation to the far-field. The predictions from ANOPP2 include the fidelity and flexibility required to predict outside the current experience base. A focal point of ANOPP2 is a combination of acoustic approaches; that is, to offer several options depending on requested fidelity and execution speed. This allows ANOPP2 to include fast prediction methods for design optimization while including the fidelity required for understanding and provide insight into controlling noise physics. In addition, ANOPP2 facilitates design by including complex differentiated versions of the library and peripheral software and, in some cases, algorithmic differentiation of prediction and derived metric capability. While ANOPP is not required to run ANOPP2, it is strongly recommended. In addition, ANOPP2 is also designed to run on large computing systems, such as clusters, and takes advantage of Message Passing Interface (MPI) in many applications.