ISSN:
1741-2765
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Summary During the latter part of 1957 and early 1958, consideration was given by the General Electric Co. toward the development of electric-arc discharge techniques to heat relatively large and continuous mass flows of gas to pressure levels and stagnation enthalpy levels comparable to those encountered in atmospheric flight up to satellite velocities. Such a device is, required for the study of aero-thermodynamic aero-thermoelatic and heat protection problems associated with hypersonic flight conditions. Testing of small models (approximately 1 in. in diameter) with wate-arc and air-arc units (50 to 100 kw dc) is sufficient for mateerials screening purposes, but larger size models (approximately 6 in. in diameter) must be utilized to obtain adequate structural information. Parametric studies were conducted to define facility requirements, model sizes and stagnation propeerties. Two 125,000-kva, 3-phase, 60-cycle a-c flywheel-type generators, located at the Switchger Development Laboratory of the General Electric Co. in South Philadelphia, were utilized to support this program. These generators have the potential of providing a source energy level of 50,000 kw; however, the initial phase of the program concentrated upon development of a unit capable of providing a jet energy level equivalent to 2500 kw. Such a unit can be adapted for use as a low-density wind tunnel capable of simulating free-flight model stagnation properties to Mach 25.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02323887
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