Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Njuki W. Mureithi"'
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:
Journal of Aircraft. 60:172-189
A flight control concept without movable surfaces using electrofluidic actuators is assessed from low-speed scaled two-dimensional (2-D) rectangular wings up to three-dimensional (3-D) full-scale tapered swept wings at realistic aircraft operating co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be3807d08f3a57f09179b9aa19a9d56f
https://doi.org/10.2514/1.c036702
https://doi.org/10.2514/1.c036702
Autor:
Loay Alyaldin, Njuki W. Mureithi
Publikováno v:
Journal of Sound and Vibration. 561:117752
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccab761b5d00dd4b4de57134af401b68
https://doi.org/10.1016/j.jsv.2023.117752
https://doi.org/10.1016/j.jsv.2023.117752
Autor:
Loay Alyaldin, Njuki W. Mureithi
Publikováno v:
Journal of Pressure Vessel Technology.
Fluidelastic instability (FEI) remains the most important mechanism of flow-induced vibrations that can potentially cause large amplitude vibrations and early failure of nuclear steam generator tubes. In the present work, experimental tests are condu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::236272e0e79c3172a6869e31616f9356
https://doi.org/10.1115/1.4053996
https://doi.org/10.1115/1.4053996
Publikováno v:
Volume 3: Fluid Structure Interaction; High Pressure Technology.
Flow-induced vibration (FIV) is a constant concern in nuclear power plants. Demand for better thermal performance challenges the mechanical and flow characteristics of fuel designs. In the hypothetical case of a loss of coolant (LOCA) event in a reac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a430345d4962cf254c965a206ddc640
https://doi.org/10.1115/pvp2021-65000
https://doi.org/10.1115/pvp2021-65000
Autor:
Njuki W. Mureithi, Abdallah Hadji
Publikováno v:
Shock and Vibration, Vol 2019 (2019)
A hybrid friction model was recently developed by Azizian and Mureithi (2013) to simulate the friction behavior of tube-support interaction. However, identification and validation of the model parameters remains unresolved. In previous work, the fric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca1aa6906dc5b137eaeeb8f3bdba2187
https://doi.org/10.1155/2019/3493052
https://doi.org/10.1155/2019/3493052
Autor:
Njuki W. Mureithi, Negar Nabatian
Publikováno v:
European Journal of Mechanics - B/Fluids. 70:115-129
The dynamics of the cylinder wake subjected to harmonic inline oscillation is investigated in this work. Two-dimensional numerical computations are performed for Re=200 to find the effect of inline sinusoidal oscillation on the flow pattern leading t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54751973ef95418958608c7256d75b7a
https://doi.org/10.1016/j.euromechflu.2018.02.003
https://doi.org/10.1016/j.euromechflu.2018.02.003
Publikováno v:
Extreme Mechanics Letters. 13:91-99
We seek to understand the effect of chirality on the reconfiguration and the self-buckling strength of chiral plants subjected to wind and gravity by experimental and theoretical modeling of their large deformation. Chiral rod and ribbon specimens ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bc60a8dfdb206d2627203e2eb484fe4
https://doi.org/10.1016/j.eml.2017.02.002
https://doi.org/10.1016/j.eml.2017.02.002
Autor:
Njuki W. Mureithi, H. Li
Publikováno v:
Journal of Fluids and Structures. 70:346-359
Tube arrays in industrial components such as heat exchangers and steam generators are susceptible to damage due to fluidelastic instability (FEI). In the present work a new time delay formulation for the quasi-steady FEI model is derived in the frequ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::047468a4fd9e2195852dac3e2bef4732
https://doi.org/10.1016/j.jfluidstructs.2017.01.020
https://doi.org/10.1016/j.jfluidstructs.2017.01.020
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
This paper treats the two-phase flow-induced vibration in pipes. A broad range of two-phase flow conditions, including bubbly, dispersed and slug flow, were tested in a clamped-clamped straight horizontal pipe. The vibration response of both transver
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36a788ea9a5deabd96deee8e1193e851
https://doi.org/10.1016/j.nucengdes.2016.12.020
https://doi.org/10.1016/j.nucengdes.2016.12.020