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On Approximate Calculation of Laminar Boundary Layers Using Polynomials
Author(s) -
Ojha S. K.
Publication year - 1965
Publication title -
zamm ‐ journal of applied mathematics and mechanics / zeitschrift für angewandte mathematik und mechanik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 51
eISSN - 1521-4001
pISSN - 0044-2267
DOI - 10.1002/zamm.19650450502
Subject(s) - laminar flow , degree (music) , polynomial , boundary (topology) , mathematics , simplicity , boundary value problem , mathematical analysis , range (aeronautics) , enhanced data rates for gsm evolution , physics , computer science , materials science , thermodynamics , quantum mechanics , telecommunications , composite material , acoustics
A systematic study of the polymomial approach to the most promising single integral method which retains accuracy and simplicity is made in the approximate calculation of laminar boundary layers. A comparison of various degree polynomial profiles with certain known exact solutions has shown that the common belief of improving Pohlhausen's method by employing higher degree polynomials is, in general, not correct. A combination of fourth and third degree polynomial methods is recommended for the approximate calculation of two‐dimensional laminar boundary layers. It is pointed out that the range of application of positive values of Pohlhausen parameter λ can be increased by satisfying more outer edge boundary conditions.