Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Mikael A. Langthjem"'
Autor:
Mikael A. LANGTHJEM, Masami NAKANO
Publikováno v:
Journal of Fluid Science and Technology, Vol 11, Iss 4, Pp JFST0030-JFST0030 (2016)
The paper is concerned with the generation of sound by the flow through a closed, cylindrical expansion chamber, followed by a long tailpipe. The sound generation is due to self-sustained flow oscillations in the expansion chamber which, in turn, may
Externí odkaz:
https://doaj.org/article/33db2aa172934738b25b0dc5bb8d18ae
Autor:
Tomomichi Nakamura, Shigehiko Kaneko, Fumio Inada, Minoru Kato, Kunihiko Ishihara, Takashi Nishihara, Njuki W Mureithi, Mikael A Langthjem
In many plants, vibration and noise problems occur due to fluid flow, which can greatly disrupt smooth plant operations. These flow-related phenomena are called flow-induced vibration. This book explains how and why such vibrations happen and provide
Publikováno v:
Matsuura, K, Mukai, K & Langthjem, M A 2023, ' Computational and Experimental Study on the Mechanism of Ring Tone ', International Journal of Computational Methods and Experimental Measurements, vol. 11, no. 1, pp. 9-16 . https://doi.org/10.18280/ijcmem.110102
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64d3dd104bf92c6ec4091d39f43e7455
https://doi.org/10.2495/cmem-v11-n1-15-29
https://doi.org/10.2495/cmem-v11-n1-15-29
The paper is concerned with an unbalanced cylindrical rotor containing a small amount of fluid, spun out to form a thin fluid layer on the inner surface of the cylinder. The main interest is in the possibility of this fluid layer to counterbalance an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b06b6db9931d004906ca00bffb7dcd80
https://doi.org/10.21203/rs.3.rs-2013988/v1
https://doi.org/10.21203/rs.3.rs-2013988/v1
Publikováno v:
Langthjem, M A & Jensen, H M 2022, ' Propagating buckles in undersea pipelines – A model problem ', International Journal of Solids and Structures, vol. 257, 111555 . https://doi.org/10.1016/j.ijsolstr.2022.111555
Steady state propagation of a buckle on an elastic beam resting on a non-linear foundation is studied by analytical methods. Besides serving as a prototype model for propagating instabilities in solids and structures, it may be refined with parameter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::201924b568a02c55dd38f2974a378f59
https://doi.org/10.1016/j.ijsolstr.2022.111555
https://doi.org/10.1016/j.ijsolstr.2022.111555
Publikováno v:
Matsuura, K, Mukai, K & Langthjem, M A 2021, Computational and experimental study on ring tone . in S Hernández & A Coruña (eds), Advances in Fluid Dynamics with emphasis on Multiphase and Complex Flow . WIT Press, WIT Transactions on Engineering Sciences, vol. 132, pp. 141-151 .
Aarhus University
Aarhus University
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d047104c8c6a4437885d238f5d050aea
https://doi.org/10.2495/mpf210121
https://doi.org/10.2495/mpf210121
Autor:
Mikael A. Langthjem
Publikováno v:
Acta Mechanica. 230:3759-3781
This paper is concerned with the dynamics and stability of a flapping flag, with emphasis on the onset of flutter instability. The mathematical model is based on the one derived in a paper by Argentina and Mahadevan (Proc Nat Acad Sci 102:1829–1834
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e329e0225e0ce0ceaa8d571f971b9862
https://doi.org/10.1007/s00707-019-02478-9
https://doi.org/10.1007/s00707-019-02478-9
Autor:
Masami Nakano, Mikael. A. Langthjem
Publikováno v:
Langthjem, M A & Nakano, M 2021, ' On the acoustic trapped modes and their symmetry properties in a circular cylindrical waveguide with a cavity ', Journal of Engineering Mathematics, vol. 128, no. 1, 14 . https://doi.org/10.1007/s10665-021-10126-2
The paper is concerned with a partly analytical, partly numerical study of acoustic trapped modes in a cylindrical cavity (expansion chamber), placed in between two semi-infinite pipes acting as a waveguide. Trapped mode solutions are expressed in te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8e3d8ab2c26f854da03288cbd4e10c1
https://doi.org/10.1007/s10665-021-10126-2
https://doi.org/10.1007/s10665-021-10126-2
Autor:
Masami Nakano, Mikael A. Langthjem
Publikováno v:
Theoretical and Computational Fluid Dynamics. 32:451-473
The generation of sound by flow through a closed, cylindrical cavity (expansion chamber) accommodated with a long tailpipe is investigated analytically and numerically. The sound generation is due to self-sustained flow oscillations in the cavity. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1aebb96dae3b5e77fc0ef296a21583d1
https://doi.org/10.1007/s00162-018-0462-4
https://doi.org/10.1007/s00162-018-0462-4
Publikováno v:
Dynamic Stability of Columns under Nonconservative Forces ISBN: 9783030005719
An elastic cantilevered beam subjected to a follower force, the so-called Beck’s column, is an ideal/classical structural model in the theory of nonconservative stability problems. The stability of columns associated with follower forces is a relat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74924897f597289e9a627b45763687b7
https://doi.org/10.1007/978-3-030-00572-6_3
https://doi.org/10.1007/978-3-030-00572-6_3