Dynamic Behavior Identification of Cavitating Flow

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MADOLIAT REZA; MOHAMMAD NOURI NOROUZ; Fadaei Roodi Ramin

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Journal: JOURNAL OF MARINE ENGINEERING Year:2017 | Volume:13 | Issue:25 Page(s): 35-46

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Information Journal Paper

Title

Dynamic Behavior Identification of Cavitating Flow

Author(s)

MADOLIAT REZA | MOHAMMAD NOURI NOROUZ | Fadaei Roodi Ramin | Issue Writer Certificate

Keywords

SupercavitationQ1

nearby areaQ1

Proper Orthogonal Decomposition (POD)Q1

spatial modeQ1

spherical harmonicsQ1

Abstract

Studying the behaviour of Supercavitation from the energy aspect can be divided into two sections. Studying the behavior of Supercavitation in the flow field and in vicinity of the flow field. A large portion of field energy is kept in the field, and the rest of it distributed as noise (sound) out of the field. In this paper, harmonious structures of the field which are flowing as energy sources are decomposed by POD method (Proper Orthogonal Decomposition) and presented as spatial modes. The behavior of each mode and therefore behavior of Supercavitation can be estimated by studying behavior of Supercavitation in nearby area by decomposing the spatial modes via Helmholz decomposition to vectorial and Scalar potential function and then modelling of potential section of scalar to spherical harmonics. By investigating spatial modes, the first mode which has the highest energy is known as mean flow and by studying the intensity of spherical harmonic modes it can be shown that dipole source is an appropriate representative for field behavior in the nearby area and as a result Supercavitation behavior in far feild.

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APA: Copy

MADOLIAT, REZA, MOHAMMAD NOURI, NOROUZ, & Fadaei Roodi, Ramin. (2017). Dynamic Behavior Identification of Cavitating Flow. JOURNAL OF MARINE ENGINEERING, 13(25 ), 35-46. SID. https://sid.ir/paper/60978/en

Vancouver: Copy

MADOLIAT REZA, MOHAMMAD NOURI NOROUZ, Fadaei Roodi Ramin. Dynamic Behavior Identification of Cavitating Flow. JOURNAL OF MARINE ENGINEERING[Internet]. 2017;13(25 ):35-46. Available from: https://sid.ir/paper/60978/en

IEEE: Copy

REZA MADOLIAT, NOROUZ MOHAMMAD NOURI, and Ramin Fadaei Roodi, “Dynamic Behavior Identification of Cavitating Flow,” JOURNAL OF MARINE ENGINEERING, vol. 13, no. 25 , pp. 35–46, 2017, [Online]. Available: https://sid.ir/paper/60978/en

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