| タイトル | DSMC calculations for 70-deg blunted cone at 3.2 km/s in nitrogen |
| 本文（外部サイト） | http://hdl.handle.net/2060/19950017976 |
| 著者（英） | Dogra, V. K.; Price, J. M.; Moss, J. N. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1995-01-01 |
| 言語 | eng |
| 内容記述 | Numerical results obtained with the direct simulation Monte Carlo (DSMC) method are presented for Mach 15.6 nitrogen flow about a 70-deg spherically blunted cone at zero incidence. This flow condition is one of several generated in the Large Energy National Shock (LENS) tunnel during tests of a 15.24 cm diameter model with an afterbody sting. The freestream Knudsen number, based on model diameter, is 0.0023. The focus of the DSMC calculations is to characterize the near wake flow under conditions where rarefaction effects may influence afterbody aerothermal loads. This report provides information concerning computational details along with flowfield and surface quantities. Calculations show that the flow enveloping the test model is in thermal nonequilibrium and a sizable vortex develops in the near wake. Along the model baseplane the heating rates are about 0.6 percent of the forebody stagnation value while the maximum heating along the sting is about 4.2 percent of the forebody stagnation value. Comparison of a Navier-Stokes solution with the present calculations show good agreement for surface heating, pressure, and skin friction results. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 95N24396
NASA-TM-109181
NAS 1.15:109181 |
| 権利 | No Copyright |
