author = "Leite, Paulo Henrique Mineiro and Santos, Wilson Fernando Nogueira 
                title = "Computational analysis of a rarefied hypersonic flow over combined 
                         gap/step geometries",
            booktitle = "Progress in Flight Physics",
            publisher = "EDP Sciences",
                 year = "2015",
                pages = "369--394",
             keywords = "Computational analysis, hypersonic flow.",
             abstract = "This work describes a computational analysis of a hypersonic §ow 
                         over a combined gap/step con¦guration at zero degree angle of 
                         attack, in chemical equilibrium and thermal nonequilibrium. E¨ects 
                         on the §ow- ¦eld structure due to changes on the step frontal-face 
                         height have been investigated by employing the Direct Simulation 
                         Monte Carlo (DSMC) method. The work focuses the attention of 
                         designers of hypersonic con- ¦gurations on the fundamental 
                         parameter of surface discontinuity, which can have an important 
                         impact on even initial designs. The results high- light the 
                         sensitivity of the primary §ow¦eld properties, velocity, density, 
                         pressure, and temperature due to changes on the step frontal-face 
                         height. The analysis showed that the upstream disturbance in the 
                         gap/step con- ¦guration increased with increasing the frontal-face 
                         height. In addition, it was observed that the separation region 
                         for the gap/step con¦gura- tion increased with increasing the step 
                         frontal-face height. It was found that density and pressure for 
                         the gap/step con¦guration dramatically increased inside the gap as 
                         compared to those observed for the gap con- ¦guration, i. e., a 
                         gap without a step.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                  doi = "10.1051/eucass/201507369",
                  url = "http://dx.doi.org/10.1051/eucass/201507369",
             language = "en",
        urlaccessdate = "20 jan. 2021"