Aerodynamic Heating with Turbulent Flow

This paper discusses approximate methods which have been used to calculate turbulent heating rates for a  flat plate case. Simple approximate methods are needed for a practical engineering analysis because of their short computing-time. Although solutions by computational  fluid dynamics (CFD) would give the most precise prediction, CFD is still costly in terms of its long computing-time. The paper especially deals with turbulent flows. The matter of turbulent flows. is critical for aerodynamic heating since the heating rate in turbulent  flows are much higher than that in laminar  flows. As shall be seen, the methods for turbulent heating are...

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A Triangular Grid Generation by Cauchy Riemann Equations

In this article, we present a method that generates a smooth triangular grid around an object. A grid in a two-dimensional physical space will be generated by solving Cauchy-Riemann equations in the physical space by treating the grid as unknown. The method is in principle the same as the elliptic grid generation method. The grid generation by elliptic partial differential equations has been a popular technique for quite sometime. The main advantage of the method is the fact that the resulting grid is smooth and orthogonal which are very important to the accuracy of the numerical solution. The idea...

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I do like CFD

“I do like CFD, VOL.1”  is a book on Computional Fluid Dynamics: the first one in a series to come. It is written by Dr. Katate Masatsuka, bringing those CFD know-how to the public. The first volume can be very useful, for students studying basics of CFD and researchers developing fundamental CFD algorithms, containing Useful formulas and basic facts. Various forms of governing equations and their eigen structure (in all dimensions: 1D, 2D, 3D). General techniques for generating exact solutions. A large collection of exact solutions for code verification. This is a `unique’ book on Computational Fluid Dynamics (CFD). The...

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