Analytical Solution of Non-dimensional Turbulent Kinetic Energy Distribution Function in the Turbulnet Wake behind a Submarine

Title & Authors
Analytical Solution of Non-dimensional Turbulent Kinetic Energy Distribution Function in the Turbulnet Wake behind a Submarine
Lee, YongChol;

Abstract
To describe turbulent wake behind a submarine, it is very important to know turbulent kinetic energy distributions in the wake. To get the distribution is to solve the turbulent kinetic energy equation, and to solve the equation, it is needed both information of $\small{{\lambda}}$ and $\small{{\sigma}}$ which define physical characteristics of the wake. This paper gives analytical solution of the equation, which is driven from $\small{8^{th}}$ order polynomial fitting, as a function of given $\small{{\lambda}}$, even though there is no information of $\small{{\sig}$$\small{ma}}$. In comparison between numerical solution(i.e. exact solution) and analytical solution, the relative errors between them are less than to 5% in the range of 0 < $\small{{\xi}}$ < 0.95 in most given $\small{{\lambda}}$.
Keywords
Submarine's Turbulent Wake;Turbulent Kinetic Energy Distribution Fuction;
Language
Korean
Cited by
References
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