Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Amin Mivehchi"'
Publikováno v:
Fluids, Vol 6, Iss 7, p 233 (2021)
New experiments examine the interactions between a pair of three-dimensional (AR = 2) non-uniformly flexible pitching hydrofoils through force and efficiency measurements. It is discovered that the collective efficiency is improved when the follower
Externí odkaz:
https://doaj.org/article/eb16af053074486499939a28b5fc84ee
Publikováno v:
AIAA Journal. 60:2930-2940
We present new scaling laws for the thrust production and power consumption of three-dimensional combined heaving and pitching hydrofoils by extending the three-dimensional pitching scaling laws introduced by Ayancik et al. (2019). New self-propelled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f9cc8607fc12841f27980ca14b5d1ad
https://doi.org/10.2514/1.j060482
https://doi.org/10.2514/1.j060482
Publikováno v:
Bioinspiration & Biomimetics. 17:065003
We present new measurements of non-uniformly flexible pitching foils fabricated with a rigid leading section joined to a flexible trailing section. This construction enables us to vary the bending pattern and resonance condition of the foils independ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::508daec6cfb148973ae5733686372efc
https://doi.org/10.1088/1748-3190/ac7f70
https://doi.org/10.1088/1748-3190/ac7f70
Publikováno v:
Physical Review Fluids. 6
Inviscid computations are presented of a self-propelled virtual body connected to a combined heaving and pitching foil that uses continuous and intermittent motions. It is determined that intermittent swimming can improve efficiency when the dimensio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8afd9b58325b58c85ae13e3696c285a2
https://doi.org/10.1103/physrevfluids.6.043101
https://doi.org/10.1103/physrevfluids.6.043101
Scaling laws for the thrust production and power consumption of a purely pitching hydrofoil in ground effect are presented. For the first time, ground-effect scaling laws based on physical insights capture the propulsive performance over a wide range
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1b4443c73f4713669421c86232f782a
Autor:
Daniel Quinn, Amin Mivehchi, Jackson Cochran-Carney, Keith W. Moored, Qiang Zhong, Melike Kurt
Publikováno v:
Journal of Fluid Mechanics. 875
Experiments and computations are presented for a foil pitching about its leading edge near a planar, solid boundary. The foil is examined when it is constrained in space and when it is unconstrained or freely swimming in the cross-stream direction. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::947cd56a9b357dff9a661f5658cdc5b5
https://doi.org/10.1017/jfm.2019.540
https://doi.org/10.1017/jfm.2019.540
Publikováno v:
Journal of Fluids and Structures. 63:174-187
A detailed series of experiments is performed to investigate the ‘ground effect’ experienced by propulsive flapping foils operating near a solid boundary. A high aspect ratio foil is towed at constant speed and oscillated in pitch and heave at va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::524fbc33325a9260caeb7d824bb6b4f7
https://doi.org/10.1016/j.jfluidstructs.2016.03.007
https://doi.org/10.1016/j.jfluidstructs.2016.03.007
Publikováno v:
Bioinspiration & Biomimetics. 13:016003
In this paper, we investigate the effect of operating near a solid boundary on the forces produced by harmonically oscillating thrust-generating foils. A rolling and pitching foil was towed in a freshwater tank in a series of experiments with varying
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08fe2f81772634c5763a39b72148d127
https://doi.org/10.1088/1748-3190/aa8a12
https://doi.org/10.1088/1748-3190/aa8a12
Publikováno v:
Bioinspiration & Biomimetics; Jan2018, Vol. 13 Issue 1, p1-1, 1p