کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
975995 933070 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Transient dipolar sound wave in a viscous compressible fluid
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Transient dipolar sound wave in a viscous compressible fluid
چکیده انگلیسی

The dipolar sound wave generated by a sudden impulse in an unbounded viscous compressible fluid is studied on the basis of the linearized Navier–Stokes equations. Due to viscosity the spherical wavefront is diffuse with a width which grows with the square root of time. The wavefront is followed by a spherical shell of static potential flow. The shell itself surrounds an expanding spherical region of viscous flow. At long times the energy in each of the three regions is of comparable magnitude, and decays with a t−3/2t−3/2 power law.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 389, Issue 24, 15 December 2010, Pages 5602–5610
نویسندگان
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