@InProceedings{LeiteSant:2009:DiSiCa,
               author = "Leite, Paulo Henrique Mineiro and Santos, Wilson Fernando 
                         Nogueira",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Direct simulation calculations of the rarefied hypersonic flow 
                         past a backward-facing step",
            booktitle = "Proceedings...",
                 year = "2009",
         organization = "Brazilian Symposium on Aerospace Engineering and Applications, 
                         2009; CTA-DLR Workshop on Data Analysis and Flight Control, 3.",
            publisher = "ITA",
              address = "S{\~a}o Jos{\'e} dos Campos",
             keywords = "hypersonic flow, rarefied flow, dsmc, backward-facing step.",
             abstract = "Abstract. This work deals with a numerical study on 
                         backward-facing steps situated in a rarefied hypersonic flow. The 
                         work is motivated by the interest in investigating the step height 
                         on the flowfield structure. The primary aim of this paper is to 
                         examine the sensitivity of the velocity, density, pressure and 
                         temperature due to step-height variations of such backwardfacing 
                         steps. Effects on the flowfield structure due to variations on the 
                         step height have been investigated by employing the Direct 
                         Simulation Monte Carlo (DSMC) method. The analysis showed that the 
                         flow past a backward-facing step in hypersonic flow is 
                         characterized by a strong expansion around de corner of the step, 
                         which influences the downstream separation region. It was found 
                         that the recirculation region behind of the steps is a function of 
                         the rear-face height. The analysis also showed that changing the 
                         height of the step did not affect the flow upstream of it. 
                         However, disturbances downstream the step depend on changes in the 
                         rear-face height of the steps.",
  conference-location = "S{\~a}o Jos{\'e} dos Campos, SP",
      conference-year = "14-16 sept.",
             language = "en",
         organisation = "ITA/DLR",
           targetfile = "direct.pdf",
        urlaccessdate = "03 maio 2024"
}