Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Eric Limacher"'
Autor:
Eric Limacher
Publikováno v:
Journal of Fluid Mechanics. 926
Herein, exact algebraic expressions for the non-circulatory (added-mass) forces on elliptic airfoils are derived for any two-dimensional motion – including simultaneous rectilinear acceleration and rotation – embedded in a steady free-stream flow
Autor:
Alexander Smits, Eric Limacher, Marcus Hultmark, Liuyang Ding, Ian E. Gunady, Alexander Pique
Publikováno v:
14th International Symposium on Particle Image Velocimetry. 1
Herein, we describe the design and testing of a stereoscopic PIV system uniquely adapted for the high pressure environment of the Princeton Superpipe. The Superpipe is a recirculating pipe facility that utilizes compressed air as the working fluid to
Autor:
David Wood, Eric Limacher
Publikováno v:
Wind Energy Science, Vol 6, Pp 1413-1425 (2021)
Upwind of an energy-extracting horizontal-axis wind turbine, the flow expands as it approaches the rotor, and the expansion continues in the vorticity-bearing wake behind the rotor. The upwind expansion has long been known to influence the axial mome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef118a204721dbef9ac7bd75773b4a42
https://wes.copernicus.org/preprints/wes-2021-52/
https://wes.copernicus.org/preprints/wes-2021-52/
Autor:
David Wood, Eric Limacher
Publikováno v:
Wind Energy Science, Vol 6, Pp 191-201 (2021)
Using the concept of impulse in control volume analysis, we derive general expressions for wind turbine thrust in a constant, spatially uniform wind. The absence of pressure in the impulse equations allows for their application in the near wake, wher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b1a81326c9aa09e9877487c21fb0a09
https://wes.copernicus.org/articles/6/191/2021/
https://wes.copernicus.org/articles/6/191/2021/
Autor:
David Wood, Eric Limacher
Using the concept of impulse in control volume (CV) analysis, we derive a new equation for steady wind turbine thrust in a constant, spatially uniform wind. This equation contains the circumferential velocity and tip speed ratio. We determine the con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c480aba43e129ff8fe4924c667affe1c
https://doi.org/10.5194/wes-2019-93
https://doi.org/10.5194/wes-2019-93
Autor:
Thiago Junqueira Rezek, Ramiro Gustavo Ramirez Camacho, Jerson Rogério Pinheiro Vaz, Eric Limacher
Publikováno v:
Ocean Engineering. 240:109940
The effect of hub length and axial location on the performance of shrouded hydrokinetic turbines has been investigated using axisymmetric actuator disk simulations. Five systems with different hubs (or without a hub, for reference) are considered wit
Publikováno v:
Experiments in Fluids. 60
To understand the forces generated on an accelerating body in a fluid flow, it is useful to have the same framework for theory and experiment. A candidate for this purpose is the decomposition of fluid-dynamic force into added-mass and circulatory co
Publikováno v:
Applied Ocean Research. 107:102484
This work presents an optimization study for designing a shrouded turbine diffuser. The goal of the study was to obtain the geometry of the hydrofoil shaped diffuser which maximizes the hydraulic power of a turbine with a given set of constraints. Th
Publikováno v:
Journal of Wind Engineering and Industrial Aerodynamics. 204:104228
The use of a diffuser enhances turbine performance by augmenting the mass flow rate through the rotor. The use of large annular flanges at the exit of the diffuser has been studied extensively, but the present study shows that large exit flanges lead
Publikováno v:
Measurement Science and Technology. 31:054001