DeltaEC
-- Current version is 6.1b3 -- 1-April-08
Platforms:
Design Environment for Low-amplitude ThermoAcoustic Energy Conversion.
This is the central access point for the information related to our program DeltaEC (Design Environment for Low-amplitude ThermoAcoustic Energy Conversion).
DeltaEC can predict how a given thermoacoustic apparatus will perform, or can allow the user to design an apparatus to achieve desired performance. DeltaEC is useful to researchers in physical acoustics and especially thermoacoustics.
The code numerically integrates a one-dimensional wave equation appropriate to a user-defined geometry in a user-selected gas or liquid. DeltaEC is capable of handling complex geometric configurations and specialized acoustic elements including resonators, duct networks, and complete thermoacoustic engines, electroacoustically driven thermoacoustic refrigerators, and thermoacoustic mixture separators.
Source code for DeltaEC is not available to the public. We have instead made executable code available for common computers. Compiled DeltaEC executable files, example files, and release notes are available for the platforms listed in the column to the left.
A two-page introduction to DeltaEC's decade-old core capabilities is available. Experienced users can examine a two-page summary of features that have been added in the transition from DeltaE version 5 to DeltaEC version 6, or proceed directly to the Users Guide, which is also included in the installation package.
The final version of the now-obsolete DeltaE, version 5.5b6, is available here. It has no known bugs, so there is no need to upgrade from DeltaE to DeltaEC if you are satisfied with DeltaE 5.5b6's limited user interface and capabilities.
DeltaEC can read almost all previous DeltaE files, although some cases require a little user intervention and double-checking. However, DeltaE cannot read DeltaEC files, so a user's transition from DeltaE to DeltaEC is rather irreversible. The members of the Los Alamos thermoacoustics team made this transition in early September 2007.
DeltaEC's modern user interface still employs the original, time-tested DeltaE Fortran calculational software. Thus, we are confident of calculated results. However, we are still debugging the new user interface. Please help us by reporting difficulties to the email address at the bottom of this web page. Describe the problem, the DeltaEC version number, and whether you are running it on a pc or a Mac. Attach a minimal test file demonstrating the problem, if possible. If DeltaEC gave you a message about the problem, please send it to us. Most such messages are recorded in DeltaEC.exe.log, which you can find in DeltaEC's installation folder.
Operated by LANS for the US Department of Energy's National Nuclear Security Administration
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Last Modified: <2 April 2008>