Source-related wavefields in fluids and dielectrics: A new way of thinking about medium dynamics

• Autorzy: Lasota H.
• Języki publikacji: EN

Abstrakty

EN

Acoustic and electromagnetic wave phenomena may seem to have a proper formal representation in field theory dating from the 19th century, founded on the mathematics of complex functions. This paper shows, however, that when replacing the classical spectrum-domain approach related to the assumption of harmonic timeform of signals, with a time-domain approach imposing no restriction as to the class of time evolution of source and field signals, it is possible to perform such a description of physical effects and their local, causality-driven mechanisms, that results in new revelations as to the role of both the physical medium and the wave source in initiating and conveying phenomena, otherwise perfectly familiar, that carry energy and preserve signal waveform. It appears that causality and locality are a core of dynamic linear phenomena in physical continua, leading to the creation of doubly-dynamic states that are observed, at the approach, in “frozen” conditions.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2013
• Tom: Vol. 16
• Strony: 145--158
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Lasota H.

• Gdansk University of Technology G. Narutowicza 11/12, 80-233 Gdansk, Poland

Bibliografia

• [1] A. G. Tokaty, “A history and philosophy of fluid mechanics”, Dover, New York 1994.
• [2] J. C.Maxwell, “A Treatise on Electricity and magnetism”, Vol. II of Clarendon Press, Oxford 1873.
• [3] J. C. Maxwell, “Remarks on the mathematical classification of physical quantities”, Proceedings of the London Mathematical Society, 1871 Vol 3, 224–232.
• [4] H. Lasota, “Action-Reaction Based Synthesis of Acoustic Wavefield”, "Hydroacoustics", vol. 14, 2011, p. 111-118.
• [5] H. Lasota, “Scalar and Vector Acoustic Fields and Sources: A New Look”, 4th Int. Conf. Underwater Acoustic Measurements, Kos, Greece, 2011, p. 899-904.
• [6] A. D. Whitehead, “The Principle of Relativity with Applications to Physical Science”, Cambridge Univ. Press 1922, p. 57.