**Titan2d-mod** (titan 3.1.1, 2016) is a free open source code to simulate dry granular avalanche flows over natural terrain, modified from an early version (titan 3.0.0, 2011) of ** TITAN2D ** code. It is available in the contributor's home page http://lsec.cc.ac.cn/~lyuan/code.html, or searchable in the Sourceforge website.

The code allows for several variants of the shallow granular flow model,^{ [1] } and the governing equations are discretized on Cartesian meshes and solved with the Davis predictor-corrector Godunov type method. The code structures and usage are the same as earlier TITAN2D versions (see user's manual ^{ [2] }), but some bugs and errors occurring in titan 3.0.0 are corrected, and stopping criteria are added. A non-hydrostatic Savage-Hutter model ^{ [3] } is implemented as the default.

- TITAN2D (open source geoflow simulation software)

The **International Obfuscated C Code Contest** is a computer programming contest for the most creatively obfuscated C code. Held annually in the years 1984–1996, 1998, 2000, 2001, 2004–2006, 2011–2015 and then in 2018, it is described as "celebrating [C's] syntactical opaqueness". The winning code for the 25th contest, held in 2018, was released in May 2018.

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**TITAN2D** is a geoflow simulation software application, intended for geological researchers. It is distributed as free software.

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- ↑ A.K. Patra, A.C. Bauer, C.C. Nichita, E.B. Pitman, M.F. Sheridan, M. Bursik, B. Rupp, A. Webber, A. Stinton, L. Namikawa, and C. Renschler,
*Journal of Volcanology and Geophysical Research*, 139 (2005) 1-21. - ↑ titan2d_ userguide.pdf, Release 2.0.0, 2007.07.09
- ↑ L. Yuan, W. Liu, J. Zhai, S.F. Wu, A.K. Patra, E.B. Pitman, Refinement on non-hydrostatic shallow granular flow model in a global Cartesian coordinate system, arXiv : 1602.03299, 2016

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