Accession Number : AD0651474


Title :   A THEORETICAL AND EXPERIMENTAL INVESTIGATION OF THE FREE PISTON CYCLE.


Descriptive Note : Final rept., Jun 65-Jul 66,


Corporate Author : FAIRCHILD HILLER CORP FARMINGDALE N Y REPUBLIC AVIATION DIV


Personal Author(s) : Humphrey,Burton G. , Jr. ; Panunzio,Sergio ; Pinkus,Oscar


Report Date : FEB 1967


Pagination or Media Count : 126


Abstract : The report deals with a continuing extension of the free piston gas compressor system as applied to a Longshot type of hypersonic wind tunnel reservoir system. A characteristics calculation in Fortran IV for the IBM 7094 computer was completed for a simple free piston compression with ideal gases, and a parametric study executed. A computer program treating the flow and variation of gas properties between the free piston tube and a reservoir in a Longshot type of check valve system was also developed. Experimentally, the feasibility of operation of a free piston-Longshot system was demonstrated at pressures approaching 200,000 psi and temperatures estimated at 2000-2500K; this represents, so far as is known, the first time such conditions, generated by simple gasdynamic means, have been contained. (Author)


Descriptors :   (*HYPERSONIC WIND TUNNELS, COMPRESSORS), COMPUTER PROGRAMS, FEASIBILITY STUDIES, GAS FLOW, PISTONS, CHECK VALVES, HIGH PRESSURE


Subject Categories : TEST FACILITIES, EQUIPMENT AND METEORS


Distribution Statement : APPROVED FOR PUBLIC RELEASE