Zobrazeno 1 - 10
of 263
pro vyhledávání: '"Takahiro KIWATA"'
Publikováno v:
e-Prime: Advances in Electrical Engineering, Electronics and Energy, Vol 9, Iss , Pp 100637- (2024)
This study aimed to experimentally investigate flow-induced vibration of modified circular cylinders for wind-receiving mast of Vibration-Based Power Generator (VBPG). Specifically, it focused on vibration characteristics of tapered and stepped circu
Externí odkaz:
https://doaj.org/article/c6a04c73b46b4c87bf69ee63bf65d66b
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 90, Iss 933, Pp 23-00257-23-00257 (2024)
In order to improve a vibrational power generator using a magnetostrictive material, i.e., Iron-gallium alloy, and flow-induced vibration of a cantilevered cylinder, a fixed splitter plate was installed behind a cantilevered circular cylinder. Effect
Externí odkaz:
https://doaj.org/article/5f674f9dbf5d446f96391c8146ebbfc7
Autor:
Koichi HAYASHIDA, Takahiro KIWATA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 89, Iss 927, Pp 23-00193-23-00193 (2023)
The effect of the nozzle orientation and the nozzle spacing on the flow characteristics of twin rectangular jets were studied experimentally. The nozzle spacing ratio S/de of a rectangular nozzle with an aspect ratio of 2 was varied from 2.75 to 6.87
Externí odkaz:
https://doaj.org/article/6b9f92f109374bc8b093e7fbc5b1adc0
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 88, Iss 913, Pp 22-00084-22-00084 (2022)
An upswept aft section at the underbody in ground effect can improve the aerodynamic downforce of vehicles. In order to clarify the effect of the upswept aft section, a simplified vehicle with the upswept aft section is examined using Large Eddy Simu
Externí odkaz:
https://doaj.org/article/35f5bdb3811f409ca011a5b4fb32d8e1
Autor:
Hiroshi TERAMOTO, Takahiro KIWATA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 88, Iss 912, Pp 22-00131-22-00131 (2022)
The present paper describes the flow characteristics of multiple round air jets with square arrangement at a relatively low-Reynolds number (Re = 4.1×103). The diameter of a round nozzle was d = 6 mm. To investigate the influence of number of nozzle
Externí odkaz:
https://doaj.org/article/a1d5b6f05ca2498fb05e02cac62df3c6
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 88, Iss 905, Pp 21-00275-21-00275 (2021)
The purpose of this study is to clarify the effect of the tapered triangular tubes added to the four corners of a 2:1 rectangular nozzle on the flow characteristics and vortical structures of a rectangular jet. The angles of tapered triangular tubes
Externí odkaz:
https://doaj.org/article/b2ce4d8f37af45fb8e9bf855a139f851
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 87, Iss 903, Pp 21-00229-21-00229 (2021)
To develop the power generation system using iron-gallium alloy, we focus on the transverse low-speed galloping vibration for a D-section prism and a rectangular prism with a critical depth section of less than the side ratio D/H ≈ 0.6 (where D is
Externí odkaz:
https://doaj.org/article/9cfa15333e4e4dcb8e050d71ecb20c39
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 87, Iss 902, Pp 21-00110-21-00110 (2021)
A micro-machined thermal flow sensor called “Flow Vector Sensor (FVS)” can measure an airflow speed and its direction simultaneously. The FVS is extremely small, and hence it does not disturb flowfields around the sensor. In addition, since a res
Externí odkaz:
https://doaj.org/article/0cf6c34d5f1e4b55995dfafec031747e
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 86, Iss 888, Pp 20-00029-20-00029 (2020)
The effect of the installation position of serrated tabs on the flow characteristics of a rectangular jet was studied experimentally. The serrated tabs, i.e. flat tabs of delta configuration, were placed on the short, long or both sides of a 2:1 rect
Externí odkaz:
https://doaj.org/article/cc92ecd378f94eed90f474f9f099acd9
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 86, Iss 887, Pp 20-00132-20-00132 (2020)
The present paper describes the performance of a micro undershot water wheel for the power generation in a snow drainageway with the Froude number of 2 to 3. In order to optimize the installation conditions of the undershot water wheel and its arc bl
Externí odkaz:
https://doaj.org/article/429a4f8b59cf42ef9219fa859d050163