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Projection of the K...
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Vasiljeva, O. A.Moscow State Univ., RUS
(author)
Projection of the Khokhlov-Zabolotskaya Equation on the Axis of Wave Beam As a Model of Nonlinear Diffraction
- Article/chapterEnglish2017
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MAIK NAUKA/INTERPERIODICA/SPRINGER,2017
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LIBRIS-ID:oai:DiVA.org:bth-15782
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https://urn.kb.se/resolve?urn=urn:nbn:se:bth-15782URI
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https://doi.org/10.1134/S1064562417060151DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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An equation is obtained that describes the nonlinear diffraction of a focused wave in a half-space starting from the wave source, then through the focus region up to the far zone, where the wave becomes spherically divergent. In contrast to the Khokhlov-Zabolotskaya equation (KZ), which contains two spatial variables, the calculation of the field on the beam axis is reduced to a simpler one-dimensional problem. Integral relations that are useful for numerical calculation are indicated. The profiles of a periodic wave harmonic at the input to the medium are constructed. A comparison with the results of a numerical solution of problems based on KZ is made, which revealed a good accuracy of the approximate model. The passage of a wave through the focus region, accompanied by the formation of shock fronts, diffraction phase shifts and asymmetric distortion of regions of different polarity, is traced.
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Lapshin, E. A.Moscow MV Lomonosov State Univ., RUS
(author)
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Rudenko, OlegBlekinge Tekniska Högskola,Institutionen för maskinteknik(Swepub:bth)oru
(author)
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Moscow State Univ., RUSMoscow MV Lomonosov State Univ., RUS
(creator_code:org_t)
Related titles
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In:Doklady. Mathematics: MAIK NAUKA/INTERPERIODICA/SPRINGER96:3, s. 646-6491064-56241531-8362
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