Main Functional Enhancements of WAON Version 4.0
Implementation of LF-FMBEM (Low Frequency FMBEM) solver
Previous version of FMBEM (HF-FMBEM = High Frequency FMBEM) solvers characteristically have reduced efficiency in low frequency ranges. The disadvantage has been removed by the LF-FMBEM solver, which demonstrates high efficiency in such ranges. Combined use of the HF-FMBEM and LF-FMBEM enables large-scale problems to be efficiently computed over all frequency ranges.
Fig1:Comparison of memory used and CPU time
between LF-FMBEM and HF-FMBEM at a concert hall (Sogakudo, Tokyo). elements: 142,358
Fig2:Sogakudo: Analyzed model and WAON Version 4.0 GUI
Implementation of two parallel computation functions
The latest version provides two different parallel computation functions: shared memory parallel-processing (SMP) and frequency level parallel-processing (FLP).
SMP parallel processes a frequency step using multi-core of central processing unit (CPU), thereby contributing to high-speed computation of large-scale problems. In contrast, FLP simultaneously processes different frequency steps after assigning them to multi-core of CPU, thus allowing effective computation of many steps. SMP and FLP can be used in combination.
These parallel computation functions are released generally as optional modules, except for parallel computing with up to two CPUs of single-core processor (= two cores of multi-core processor), which can be used as a standard function.
Fig3:Benchmark Results of Parallel Computation Functions
Analysis models:
- Number of elements: 931,416 / DOF: 1,862,832
Machine environment:
- HP ProLiant BL460G6 Xeon 2-CPU-mounted blade server (Total 8 cores)
- CPU: X5570 2.93 GHz
- Memory: 96 GB mounted
Change in License Manager
The license management system has been changed to FLEXnet.
The license of the solver (computing part) and interface (WAON operation part using GUI or NoGUI) has been separated. One solver and up to two interfaces can be started with one license. This, for instance, enables another GUI to be started during the anals of one problem to enable operations other than analysis to be carried out.
Enhancement of other functions
Computation
- GUI operations can be performed while executing analysis
Processing of analysis results
- Addition of coordinate output function to results file
Setting of analysis conditions
- Definition of density complex numbers
- Definition of frequency dependence of media
- Compatibility with input file formats of ANSYS Workbench
- Uncoupled BEM can be defined on symmetrical (baffle) surfaces
