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Application of Fourier transforms to periodic heat flow into the ground under a building

✍ Scribed by A.E. Delsante; A.N. Stokes; P.J. Walsh

Book ID
104136143
Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
695 KB
Volume
26
Category
Article
ISSN
0017-9310

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✦ Synopsis

Fourier transforms are used to obtain expressions for the heat flux from a surface region at a given temperature into a 2 or 3 dim. semi-infinite solid, with all quantities assumed to be periodic in time. These expressions are evaluated explicitly in the 2-dim. case and are used to obtain approximate results in 3dim. valid for a wide range of frequencies. An explicit exact expression for the 3-dim. steady-state heat flux from a rectangular surface region is also obtained. Z~ B(z), B, D, F~.,. F~, G(~,~), I (x), Jo (rp), K,,(z), Ki,(x), L(v), P, 0., S, T(x, y, z, T(x,y,z), AT, TI, T2, U~ a, C, d, f(x),

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Applications of hybrid discrete Fourier transform moment method to the fast analysis of large rectangular dipole arrays printed on a thin grounded dielectric substrate
✍ Hsi-Tseng Chou; Hsien-Kwei Ho; O. A. Civi; Vakur B. Erturk 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 177 KB 👁 1 views

## Abstract Recently a discrete Fourier transform–method of moments (DFT‐MoM) scheme was developed for fast analysis of electrically large rectangular planar dipole arrays, which has been shown to be very efficient in terms of number reduction of unknown variables and computational complexity. The