A multidimensional hydrodynamic code for structure evolution in   cosmology
  A cosmological multidimensional hydrodynamic code is described and tested. This code is based on modern high-resolution shock-capturing techniques. It can make use of a linear or a parabolic cell reconstruction as well as an approximate Riemann solver. The code has been specifically designed for cosmological applications. Two tests including shocks have been considered: the first one is a standard shock tube and the second test involves a spherically symmetric shock. Various additional cosmological tests are also presented. In this way, the performance of the code is proved. The usefulness of the code is discussed; in particular, this powerful tool is expected to be useful in order to study the evolution of the hot gas component located inside nonsymmetric cosmological structures. 
Vicent Quilis, Jose Ma. Ibanez and Diego Saez (Departament   d'Astronomia i Astrof\'isica, Universitat de Val\`encia, Val\`e...