Accession Number : AD0613758

Title :   THE NUMBER OF UNSTABLE MODES IN HYDRODYNAMIC STABILITY PROBLEMS,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s) : Howard,Louis N.

Report Date : 12 JUN 1964

Pagination or Media Count : 12

Abstract : It is shown that for an important class of velocity profiles the number of unstable modes cannot exceed the number of inflexion points. The ranges of unstable wave numbers for the various modes are also delimited. (Author)

Descriptors :   (*HYDRODYNAMICS, STABILITY), INCOMPRESSIBLE FLOW, TWO DIMENSIONAL FLOW, PERTURBATION THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE