Search results for: STANDING WAVES

• Standing Waves in a Rectangular Resonator Containing Acoustically Active Gases

  Publication

  • A. Perelomova

  - Archives of Acoustics - Year 2016

  The distribution of perturbations of pressure and velocity in a rectangular resonator is considered. A resonator contains a gas where thermodynamic processes take place, such as exothermic chemical reaction or excitation of vibrational degrees of a molecule’s freedom. These processes make the gas acoustically active under some conditions. We conclude that the incident and reflected compounds of a sound beam do not interact in the...

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• Interaction of light with standing cylindrical ultrasonic wave in air

  Publication

  • I. Grulkowski
  • D. Jankowski
  • P. Kwiek

  - Year 2007

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• Standing Waves and Acoustic Heating (or Cooling) in Resonators Filled with Chemically Reacting Gas

  Publication

  • A. Perelomova
  • W. Pelc-Garska

  - Archives of Acoustics - Year 2014

  Standing waves and acoustic heating in a one-dimensional resonator filled with chemically reacting gas, is the subject of investigation. The chemical reaction of A ! B type, which takes place in a gas, may be reversible or not. Governing equations for the sound and entropy mode which is generated in the field of sound are derived by use of a special mathematical method. Under some conditions, sound waves propagating in opposite...

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• Standing Acoustic Waves and Relative Nonlinear Phenomena in a Vibrationally Relaxing Gas-Filled Resonator

  Publication

  • A. Perelomova

  - ACTA ACUSTICA UNITED WITH ACUSTICA - Year 2012

  Standing acoustic waves in one-dimensional resonator filled with vibrationally relaxing gas, are studied. Two regimes of excitation of molecular vibrational degrees of freedom are considered, equilibrium and nonequilibrium. The acoustic energy enlarges with time in the non-equilibrium regime and decreases otherwise before formation of discontinuity. After that, it decreases due to nonlinear absorption and tends to zero in equilibrium...

• Extreme waves and wave events in the Baltic Sea

  Publication

  • M. Paprota
  • J. Przewłócki
  • W. Sulisz
  • B. Swerpel

  - Year 2003

  W pracy przedstawiono wyniki pomiarów szeregów czasowych falowania uzyskanych z boi pomiarowych, umieszczonych w kilku miejscach linii brzegowej Morza Bałtyckiego. Rozważano wpływ czasu trwania sztormu i kierunku wiatru na powstawanie pojedynczych oraz grup fal ekstremalnych. Przeprowadzono statystyczną analizę takich fal, zwracając szczególną uwagę na rozkłady ich wysokości. Dla wybranych realizacji przeprowadzono analizę spektralną...

• JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS

  Journals

  ISSN: 0920-5071 , eISSN: 1569-3937

• Standing Waves in One-Dimensional Resonator Contaning an Ideal Isothermal Gas Affected by the Constant Mass Force

  Publication

  • A. Perelomova

  - Archives of Acoustics - Year 2017

  The study is devoted to standing acoustic waves in one-dimensional planar resonator which containing an ideal gas. A gas is affected by the constant mass force. Two types of physically justified boundary conditions are considered: zero velocity or zero excess pressure at both boundaries. The variety of nodal and antinodal points is determined. The conclusion is that the nodes of pressure and antinodes of velocity do not longer...

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• Orthodontic Waves

  Journals

  ISSN: 1344-0241 , eISSN: 1878-1837

• Water Waves

  Journals

  ISSN: 2523-367X , eISSN: 2523-3688

• SHOCK WAVES

  Journals

  ISSN: 0938-1287 , eISSN: 1432-2153