FastBEM Acoustics(R) V.7
(C) All Rights Reserved, 2007-2024, Advanced CAE Research, LLC (ACR)


V.7, Released 2024-01-02

1. Improved computational efficiencies

2. Improved numerical stabilities (avoid the NaN issues in some models with FMM solver option)



V.6, Release 2, Updated 2022-10-28

Fixed a bug that can cause slowdown of the solution in a 
frequency sweep analysis using the FMM solver option



V.6, Released 2020-01-20

1. A new design of the graphical-user interface FastBEM View 

2. Added the case of pressure given boundary condition in ATM calculation

3. Added the case of ATM calculation for scattering problems

4. Combined the file output_ATM.dat with output_ATM_Saved.dat

5. Performance improvement for the solver




V.5, Release 4, Updated 2019-06-20

Major bug fix in FastBEM Acoustics solver which computes wrong results 
when mixed BCs or presure/impedance BCs are specified in a frequency sweep analysis



V.5, Release 3, Updated 2019-01-30

1. Rebuild for latest Intel CPUs

2. Bug fixes in FastBEM Acoustics solver



V.5, Release 2, Updated 2017-11-30

1. FastBEM View updated to V.3.0

2. Bug fixes in FastBEM Acoustics solver



V.5, Released 2017-05-01

1. Improved the performance of the FMM, ACA, and fast direct solvers for latest multicore CPUs

2. Removed the limitation on the number of acoustic sources (number of plane waves, point sources, etc.)

2. Added output of both total wave and scattered wave for scattering problems

3. Fixed a bug in the FMM solver with HBIE for half-space problems

4. Updated the ANSYS to BEM translator code for the latest versions of ANSYS

5. Other improvements of the code and bug fixes



V.4.0 R3, Released 2016-09-30

Updated the ANSYS to BEM translator code for the latest versions of ANSYS; Added reporting the MAC address of the host computer; Recompiled the solver program with the new parallel compiler.



V.4.0, Updated 2015-01-11

Fixed the bug of reporting negative wall-clock time when program runs overnight.



V.4.0, Released 2014-01-05

1. Released the OpenMP parallel version, where users can specify the number of threads of the CPU(s) to be used; Added output of the total wall-clock time, along with the total CPU time for all threads

2. Added the feature of computing/storing/using the acoustic transfer matrix (ATM) or vector for optimization of the sound field

3. Added the solver type of the high-frequency BEM (HFBEM) for fast approximate solutions of exterior radiation problems

4. Added the option for acoustic panel contribution analysis

5. Other improvements of the code




V.3.0.0, Release 4, 2013-05-27

1. Fixed a bug that can cause errors when a part of the boundary is applied with an impedance BC.

2. Fixed a bug so that users can now specify field points only, without the need to define a field surface (that is, can have the number of field points > 0, while the number of field cells = 0).



V.3.0.0, Release 3, 2013-03-18

1. Updated the ANSYS to BEM translator code (Program ansys_bem_acoustics.exe) which can now handle new format in the ANSYS cdb files.

2. Updated FastBEM View (The GUI) which is now compatible with Java JRE 7.



V.3.0.0, Release 2, 2012-07-30

Corrected errors in setup files for FastBEM View (The GUI).



V.3.0.0, Released 2012-04-15

New Features and Bug Fixes:

FastBEM Acoustics (The BEM Solver) V.3.0.0:

1. Addition of dipole point sources.

2. Introduction of complex wavenumber k (new parameter k ratio) to model the damping effect of the acoustic medium.

3. Option for users to save results in Tecplot format at all frequencies.

4. Improved efficiencies for both the fast multipole BEM and ACA BEM solvers.


FastBEM View (The GUI) V.2.0.0:

1. Added the animation function.

2. Improved performance and fixed bugs.