| タイトル | Experimental and analytical derivation of arc-heater scaling laws for simulating high-enthalpy environments for Aeroassisted Orbital Transfer Vehicle application |
| 著者（英） | Balakrishnan, A.; Winovich, W.; Balboni, J. |
| 著者所属（英） | Eloret Corp.; NASA Ames Research Center |
| 発行日 | 1985-06-01 |
| 言語 | eng |
| 内容記述 | The computer code ARCFLO II was used as a guide to increase the performance of the Interaction Heating Facility at Ames Research Center. A closed-form scaling law relation was derived that provides an understanding of the factors that affect enthalpy in the constricted-arc heater. From a study of this scaling law, it is concluded that at constant pressure, enthalpy is proportional to current density raised to the 0.60 power for current densities from 80 to 150 A/sq cm. At constant current density, enthalpy is inversely proportional to pressure to the nth power, where n varies from 0.14 to 0.43, depending on the current density. Radiative heat losses are responsible for the falloff in performance at combinations of high current density and high pressure. An analytical, closed form scaling law based on a constant-temperature arc-core model agrees qualitatively with the scaling law deduced from ARCFLO II. |
| NASA分類 | GROUND SUPPORT SYSTEMS AND FACILITIES (SPACE) |
| レポートNO | 85A40802
AIAA PAPER 85-1006 |
| 権利 | Copyright |
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