The Vulcan code is developed in the Hypersonic Air Breathing Propulsion Branch at NASA Langley for RANS, LES, and hybrid LES/RANS computations. It is a finite-volume code with (in LES-mode) minimally dissipative numerics. The code is described at https://vulcan-cfd.larc.nasa.gov.
![](https://wmles.umd.edu/wp-content/uploads/sites/9/2019/02/fig_Vulcan-IDDES_ar1_allgrids-1024x428.png)
![](https://wmles.umd.edu/wp-content/uploads/sites/9/2019/02/fig_Vulcan-IDDES_ar2_allgrids-1024x428.png)
![](https://wmles.umd.edu/wp-content/uploads/sites/9/2019/02/fig_Vulcan-IDDES_ar2-ar1_allgrids-1024x428.png)