We released the alpha version of GasDynCalc. The code is based on 1D calculation and fully free to use. Please, use it carefully as it is the alpha version. Let us know if you have any questions or ideas how to improve it. You might download it here.
GasDynCalc is still on developing stage. We integrated GUI for two modes: stand alone and network. The stand alone mode is designed to calculate separate parts, such as duct, diffuser, heat exchanger, etc. The network mode is created to model the network of different devices.
Currently, we are developing two codes: CFxD and GasDynCalc. We do not actively develop GTECalc. It has been tested and released. The basic functions are integrated and it is free to use. Since there is no any comments from users we do not have the plans to integrate advanced features.
After a long thought we decide to develop CAD engine ourselves to avoid a dependence on 3rd party. Now, we are busy with selection module as the mathematical way is not convenient. So, we are trying to use OpenGL features.