- acoustic equation
- мат.акустическое уравнение
English-Russian scientific dictionary. 2008.
English-Russian scientific dictionary. 2008.
Acoustic theory — is the field relating to mathematical description of sound waves. It is derived from fluid dynamics. See acoustics for the engineering approach.The propagation of sound waves in a fluid (such as air) can be modeled by an equation of motion… … Wikipedia
Acoustic resonance — is the tendency of an acoustic system to absorb more energy when the frequency of its oscillations matches the system s natural frequency of vibration (its resonance frequency ) than it does at other frequencies. A resonant object will probably… … Wikipedia
Acoustic analogy — Acoustic analogies are applied mostly in numerical aeroacoustics to reduce aeroacoustic sound sources to simple emitter types. They are therefore often also referred to as aeroacoustic analogies.In general, aeroacoustic analogies are derived from … Wikipedia
Acoustic wave equation — In physics, the acoustic wave equation governs the propagation of acoustic waves through a material medium. The form of the equation is a second order partial differential equation. The equation describes the evolution of acoustic pressure p or… … Wikipedia
Acoustic transmission lines — An acoustic transmission line is the acoustic analog of the electrical transmission line, typically thought of as a rigid walled tube that is long and thin relative to the wavelength of sound present in it. Pipe organs, woodwinds, and the like… … Wikipedia
Korteweg–de Vries equation — In mathematics, the Korteweg–de Vries equation (KdV equation for short) is a mathematical model of waves on shallow water surfaces. It is particularly notable as the prototypical example of an exactly solvable model, that is, a non linear partial … Wikipedia
Defining equation (physics) — For common nomenclature of base quantities used in this article, see Physical quantity. For 4 vector modifications used in relativity, see Four vector. Very often defining equations are in the form of a constitutive equation, since parameters of… … Wikipedia
Wave equation — Not to be confused with Wave function. The wave equation is an important second order linear partial differential equation for the description of waves – as they occur in physics – such as sound waves, light waves and water waves. It arises in… … Wikipedia
The Human Equation — Infobox Album | Name = The Human Equation Type = studio Artist = Ayreon Released = May 25, 2004 Recorded = 2004 Genre = Progressive metal Length = 1:42:14 Label = InsideOut Music Producer = Arjen Lucassen Reviews = PiercingMetal Rating 10|9 [http … Wikipedia
Ocean acoustic tomography — The western North Atlantic showing the locations of two experiments that employed ocean acoustic tomography. AMODE, the Acoustic Mid Ocean Dynamics Experiment (1990 1), was designed to study ocean dynamics in an area away from the Gulf Stream,… … Wikipedia
Mild-slope equation — Simulation of wave penetration involving diffraction and refraction into Tedious Creek, Maryland, using CGWAVE (which solves the mild slope equation). In fluid dynamics, the mild slope equation describes the combined effects of diffraction and… … Wikipedia