0802 Decomposition of Incompressible Flows into Dipoles
Kazuyuki UENO, Yuko Matsumoto · Ryuutai Kougaku Bumon Kouenkai kouen rombunshuu/Ryutai Kogaku Bumon Koenkai koen ronbunshu · 2010
The impulse density in wavelet space is derived from two-dimensional incompressible flow fields by a continuous wavelet transform. Furthermore, a sequence of dipoles is extracted from the impulse density by a recursive operation. Graphical representation of dipoles illustrates various flow structures. Results of dipole decomposition of two-dimensional turbulent flows include many columns of dipoles which illustrate jets.