Velocity Reconstruction of Arbitrary Shaped Incompressible Flow Field with Noises Using Seamless Immersed Boundary Method

In order to reconstruct the arbitrary shaped incompressible velocity field with noises, a new data-processing fluid dynamics (DFD) based upon the seamless immersed boundary method is proposed. The velocity field with noises is reconstructed by the Helmholtz's decomposition. The performance...

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Main Author: Hidetoshi NISHIDA
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2012-07-01
Series:Journal of Thermal Science and Technology
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jtst/7/1/7_249/_pdf/-char/en
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author Hidetoshi NISHIDA
author_facet Hidetoshi NISHIDA
author_sort Hidetoshi NISHIDA
collection DOAJ
description In order to reconstruct the arbitrary shaped incompressible velocity field with noises, a new data-processing fluid dynamics (DFD) based upon the seamless immersed boundary method is proposed. The velocity field with noises is reconstructed by the Helmholtz's decomposition. The performance of DFD is demonstrated first for the reconstruction of velocity with noises and erroneous vectors. Also, the seamless immersed boundary method is incorporated into the velocity reconstruction for complicated flow geometry. Some fundamental flow fields, i.e., the square cavity flows with a circular cylinder and a square cylinder, are considered. As a result, it is concluded that the present DFD based upon the seamless immersed boundary method is very versatile technique for velocity reconstruction of the arbitrary shaped incompressible velocity with noises.
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spelling doaj.art-d24a8f182217427dadd9c2bc4fd5880b2022-12-21T18:11:41ZengThe Japan Society of Mechanical EngineersJournal of Thermal Science and Technology1880-55662012-07-017124926110.1299/jtst.7.249jtstVelocity Reconstruction of Arbitrary Shaped Incompressible Flow Field with Noises Using Seamless Immersed Boundary MethodHidetoshi NISHIDA0Department of Mechanical and System Engineering, Kyoto Institute of TechnologyIn order to reconstruct the arbitrary shaped incompressible velocity field with noises, a new data-processing fluid dynamics (DFD) based upon the seamless immersed boundary method is proposed. The velocity field with noises is reconstructed by the Helmholtz's decomposition. The performance of DFD is demonstrated first for the reconstruction of velocity with noises and erroneous vectors. Also, the seamless immersed boundary method is incorporated into the velocity reconstruction for complicated flow geometry. Some fundamental flow fields, i.e., the square cavity flows with a circular cylinder and a square cylinder, are considered. As a result, it is concluded that the present DFD based upon the seamless immersed boundary method is very versatile technique for velocity reconstruction of the arbitrary shaped incompressible velocity with noises.https://www.jstage.jst.go.jp/article/jtst/7/1/7_249/_pdf/-char/endata-processing fluid dynamicsseamless immersed boundary methodvelocity reconstruction
spellingShingle Hidetoshi NISHIDA
Velocity Reconstruction of Arbitrary Shaped Incompressible Flow Field with Noises Using Seamless Immersed Boundary Method
Journal of Thermal Science and Technology
data-processing fluid dynamics
seamless immersed boundary method
velocity reconstruction
title Velocity Reconstruction of Arbitrary Shaped Incompressible Flow Field with Noises Using Seamless Immersed Boundary Method
title_full Velocity Reconstruction of Arbitrary Shaped Incompressible Flow Field with Noises Using Seamless Immersed Boundary Method
title_fullStr Velocity Reconstruction of Arbitrary Shaped Incompressible Flow Field with Noises Using Seamless Immersed Boundary Method
title_full_unstemmed Velocity Reconstruction of Arbitrary Shaped Incompressible Flow Field with Noises Using Seamless Immersed Boundary Method
title_short Velocity Reconstruction of Arbitrary Shaped Incompressible Flow Field with Noises Using Seamless Immersed Boundary Method
title_sort velocity reconstruction of arbitrary shaped incompressible flow field with noises using seamless immersed boundary method
topic data-processing fluid dynamics
seamless immersed boundary method
velocity reconstruction
url https://www.jstage.jst.go.jp/article/jtst/7/1/7_249/_pdf/-char/en
work_keys_str_mv AT hidetoshinishida velocityreconstructionofarbitraryshapedincompressibleflowfieldwithnoisesusingseamlessimmersedboundarymethod