Accession Number : AD0429118


Title :   FLUID AMPLIFICATION. 7. A THREE-STAGE DIGITAL AMPLIFIER,


Corporate Author : HARRY DIAMOND LABS WASHINGTON D C


Personal Author(s) : Campagnuolo,Carl J


Report Date : 01 Aug 1963


Pagination or Media Count : 33


Abstract : The design and performance of a three-stage digital amplifier system obtaining a high-power output and flow gain is described. The design of the system was arrived at by taking measurements of single elements and matching the units with respect to input, output, and feedback performance. Flow gain in the system was obtained by increasing the nozzle widths by a factor of ten from stage to stage. Effects of loading on the stability of intermediate units were controlled by positioning the splitters further downstream than would be required for maximum efficiency. The system was operated with a common power-jet supply pressure of 1 to 15 psig. The system was switched with flow at atmospheric pressure. The third-stage output was exhausted to atmosphere through a 12-deg diffuser. Flow gains up to 3000, pressure recovery of 50 to 67%, and power gains up to about 10,000 were obtained. (Author)


Descriptors :   *FLUID FLOW , AMPLIFIERS , DIGITAL SYSTEMS , SUBSONIC FLOW , BOUNDARY LAYER , TURBULENCE , JET FLOW , FLUID MECHANICS , CASCADE STRUCTURES , DIFFUSERS , NOISE , PNEUMATIC EQUIPMENT , COANDA EFFECT


Distribution Statement : APPROVED FOR PUBLIC RELEASE