Acoustic propagation in inhomogeneous fluids: regularization via the introduction of fine particles

• Autorzy: Jordan P. M.

Identyfikatory

DOI

10.24423/aom.3370

• Języki publikacji: EN

Abstrakty

EN

It is shown, using analytical methodologies, that the velocity field blow-up suffered by vertically ascending acoustic waves in an isothermal atmosphere can be eliminated via the introduction of fine particles. Assuming the inhomogeneous generalization of the particle-laden flow model known as the (linearized) Marble–Thompson model-1, it is established that bounded, exponentially decreasing, shock amplitudes can be obtained provided the mass fraction of particles exceeds a critical value, for which an exact expression is derived. Lastly, supporting numerical results are presented, special cases are discussed, and possible follow-on studies are noted.

Słowa kluczowe

EN

inhomogeneous fluids; Laplace transform; particle-laden flow; singular surface theory

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Archives of Mechanics
• Rocznik: 2020
• Tom: Vol. 72, nr 1
• Strony: 59--73
• Opis fizyczny: Bibliogr. 25 poz.

Twórcy

autor

Jordan P. M.

• Acoustics Division, U.S. Naval Research Laboratory, Stennis Space Center, MS 39529, USA

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).