Accession Number : AD0283039

Title :   RESEARCH ON ANNULAR NOZZLE TYPE GROUND EFFECT MACHINE OPERATING OVER WATER: NONUNIFORMITY OF JET MOMENTUM

Corporate Author : CALIFORNIA UNIV BERKELEY HYDRAULIC ENGINEERING LAB

Personal Author(s) : SIGURDSSON,GUNNAR

Report Date : 31 MAR 1962

Pagination or Media Count : 1

Abstract : A limited number of experiments indicate that the jet momentum is nonuniformly distributed around the periphery of a ground effect machine operating over water. An attempt is made to correlate the distribution of jet momentum with the water surface configuration under the machine and with the wake pattern created by the machine. The theoretical solutions for the wave resistance that acts on a moving pressure area are discussed. The data presented in this paper indicate that this wave resistance does not have to be transmitted to the ground effect machine. (Author)

Descriptors :   *EXHAUST NOZZLES, *FLYING PLATFORMS, AERODYNAMIC CHARACTERISTICS, ANNULAR NOZZLES, FLUID FLOW, GROUND EFFECT, GROUND EFFECT MACHINES, JETS, MODEL TESTS, PRESSURE, RESISTANCE (ELECTRICAL), WATER, WATER WAVES

Distribution Statement : APPROVED FOR PUBLIC RELEASE