Overview

Actran TM is a cutting-edge acoustic Computer-Aided Engineering (CAE) software designed to predict and analyze noise generated by turbomachinery. Developed by Hexagon, it enables engineers to model and optimize the acoustic performance of a variety of turbomachines, including aircraft engines, cooling systems, and turbines. Widely used in aerospace and other industries, Actran TM provides precise simulations of sound radiation, propagation, and interaction with acoustic treatments, helping to enhance performance and reduce noise levels.

Features and Capabilities:

• Advanced Modeling for Turbomachinery Noise: Actran TM encompasses comprehensive modeling features essential for turbomachinery noise analysis, facilitating accurate simulations of complex acoustic phenomena.
• Non-Uniform Background Mean Flow Handling: The software accounts for convection and refraction effects by allowing sound wave propagation over a non-uniform background mean flow, which can be computed within Actran or imported from Computational Fluid Dynamics (CFD) simulations.
• Boundary Layer Effects on Acoustic Liners: Actran TM incorporates the Myers boundary condition to accurately model the influence of boundary layers on the performance of acoustic liners, enhancing the precision of simulations involving lined ducts.
• Flexible Acoustic Source Definition: Users can define acoustic sources in terms of incident acoustic duct modes, with amplitudes specified through various methods, including normalized amplitude, intensity, or equal energy distribution among propagating modes.
• Integration with CFD Data: The iTM utility enables the extraction of duct modal amplitudes from unsteady CFD results, facilitating the translation of CFD pressure and velocity fields into duct modes while filtering out spurious data.
• Versatile Geometrical Modeling: Actran TM supports full 3D, semi-3D, 3D angular sector, 2D axisymmetric, and 2D models, providing flexibility in simulating various geometrical configurations.
• Efficient Solver Technology: The software addresses the challenges of large models associated with high wave numbers and complex geometries through efficient solver technologies, including advanced parallel processing capabilities.
• Multiple Load Handling: Actran TM allows for the computation of acoustic responses for several independent acoustic duct mode excitations within a single computation, streamlining the analysis process.
• Complementary Integration with Actran DGM: For problems involving complex shear layers and flow gradients, particularly at engine exhausts, Actran TM can be complemented by Actran DGM to enhance simulation accuracy.