@InProceedings{Santos:2005:GaImAe,
               author = "Santos, Wilson Fernando Nogueira",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Gas-surface impact on aerodynamic surface quantities of 
                         low-density hypersonic flow over flat-nose bodies",
            booktitle = "Proceedings...",
                 year = "2005",
         organization = "International Congress of Mechanical Engineering, 18. (COBEM).",
            publisher = "ABCM",
              address = "Rio de Janeiro, RJ",
             keywords = "hypersonic flow, rarefied flow, DSMC, blunt leading edge, 
                         gas-surface accommodation.",
             abstract = "ABSTRACT: The present work performs a computational study on 
                         rarefied hypersonic flow past flat-nose leading edges at zero 
                         incidence. Effects of incomplete surface accommodation on the 
                         aerothermodynamic surface quantities have been investigated by 
                         employing the Direct Simulation Monte Carlo (DSMC) method in 
                         combination with the Cercignani-Lampis-Lord gas surface 
                         interaction model, which incorporates separate accommodation 
                         coefficients for normal and tangential velocity components. The 
                         work also focuses the attention of designers of hypersonic 
                         configurations on the fundamental parameter of bluntness, which 
                         can have an important impact on even initial design. The results 
                         presented highlight the sensitivity of the heat transfer and drag 
                         coefficients to changes on the gas-surface accommodation 
                         coefficients. These are compared to the results for classical 
                         diffuse reflection model. It was found that stagnation point 
                         heating decreased by a reduction on the normal accommodation 
                         coefficient and the total drag decreased by a reduction on the 
                         tangential accommodation coefficient.",
  conference-location = "Ouro Preto, MG",
      conference-year = "06-11 Nov. 2005",
           copyholder = "SID/SCD",
             language = "en",
           targetfile = "gas-surfaceimpa1.pdf",
        urlaccessdate = "10 maio 2024"
}