Accession Number:

AD0257567

Title:

NUMERICAL STUDIES OF TRANSITION FROM LAMINAR TO TURBULENT FLOW OVER A FLAT PLATE

Descriptive Note:

Corporate Author:

NEW YORK UNIV N Y SCHOOL OF ENGINEERING AND SCIENCE

Personal Author(s):

Report Date:

1961-04-01

Pagination or Media Count:

1.0

Abstract:

A finite-difference technique is developed for analyzing the time-dependent two-dimensional flow of an incompressible viscous fluid over a semi-infinite flat plate. The complete nonlinear equations of motion for perturbed Blasius flow are numerically integrated with respect to time, and the propagation of disturbances in the boundary layer is determined. An analysis of the theoretical convergence and stability properties of the difference scheme is carried out. The method developed has been employed in two test calculations, in which slightly unstable oscillatory disturbances have been introduced at some upstream point. The numerical solutions exhibit many of the major theoretical and experimentally observed features associated with transition from laminar to turbulent boundary-layer flow. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE