Using copper-foil explosions to generate underwater focusing shocks of different geometries [0.03%]
利用铜箔爆炸生成不同形状的水下聚焦冲击波
Sebastián Rojas Mata,Francesc Hernández Garcia,Michael Liverts
Sebastián Rojas Mata
Focusing shocks are created underwater by exploding 10- μ m-thick copper foils with circular and polygonal geometries. Their symmetry and trajectory are characterized to assess this technique's potential contributions to fundamental an...
Passive scalar transport in a cross-ventilating flow with upstream source: wind and water tunnel measurements [0.03%]
上游释放的交错通风流动中的被动标量传输:风洞和水洞实验研究
Subhajit Biswas,Paul Hayden,Matteo Carpentieri et al.
Subhajit Biswas et al.
In urban environments, pollutant ingress from outdoor sources poses a significant challenge to indoor air quality. Cross-ventilation, while essential for passive cooling and natural airflow, can also facilitate the entry of outdoor contamin...
An accelerating wind tunnel for testing untethered bodies in transverse gusts [0.03%]
一种用于测试横向阵风中自由悬浮体的加速风洞
Ignazio Maria Viola,Aditya Potnis,Soumarup Bhattacharyya et al.
Ignazio Maria Viola et al.
Understanding the gust response of free-falling bodies such as plant seeds and debris is critical in predicting their dispersal. Furthermore, gusts can significantly affect the performance and survivability of low-inertia aerial vehicles. H...
Junchen Tan,Shūji Ōtomo,Ignazio Maria Viola et al.
Junchen Tan et al.
Abstract: This paper investigates the characteristics and control of tip vortices generated by a finite wing, focusing on the impact of the novel grooved-tip designs. Tip vortices can lead to flow loss, noise, vibration a...
TWISTER (Twente water injection system for turbulence experimental research): a jet array in the Twente water tunnel for generating strong turbulence using four-dimensional gradient noise [0.03%]
TWISTER(恩荷ffen 水筒中的水射流列阵,在四维梯度噪声驱动下产生强湍流的实验研究)
Duco van Buuren,Dennis P M van Gils,Gert-Wim Bruggert et al.
Duco van Buuren et al.
We present a newly constructed jet array with a novel driving scheme for turbulence generation in a vertical water tunnel and measurements of the turbulent flow this jet array establishes. The design of the array allows us to control the me...
Lennart Kira,Jerome Noir
Lennart Kira
Abstract: Using the travel time of sound waves advected by a moving carrier medium, acoustic tomography allows to reconstruct temperature and flow fields in opaque fluids without tracers or scattering particles. Reconstru...
Volumetric study of particle-wake interactions based on free falling finite particles [0.03%]
基于自由下落有限粒子的颗粒尾流相互作用的体积研究
Yi Hui Tee,James R Dawson,R Jason Hearst
Yi Hui Tee
Research on free falling particles has predominantly focused on wake dynamics and vortex shedding of individual particles in quiescent flow. However, when these particles fall collectively, the wakes of neighboring particles alter the flow ...
Volumetric supraglottal jet flow field analysis in synthetic multilayered self-oscillating vocal fold model [0.03%]
合成多层自振声带模型中喉腔容积流场分析
Jacob Michaud-Dorko,Charles Farbos de Luzan,Ephraim Gutmark et al.
Jacob Michaud-Dorko et al.
Recent research highlights the need for comprehensive three-dimensional (3D) analysis of laryngeal flow to better understand voice production, as traditional 2D methods fail to capture the full complexity of supraglottal jet dynamics. This ...
Iacopo Tirelli,Adrian Grille Guerra,Andrea Ianiro et al.
Iacopo Tirelli et al.
A method is proposed to obtain full-domain spatial modes based on proper orthogonal decomposition (POD) of particle image velocimetry (PIV) measurements taken at different (overlapping) spatial locations. This situation occurs when large do...
Complete solid-body rotation rate measurements of micro-plastic curved fibers in turbulence [0.03%]
微塑料弯曲纤维在湍流中的完全刚体旋转速率测量
Giuseppe C A Caridi,Vlad Giurgiu,Marco De Paoli et al.
Giuseppe C A Caridi et al.
Abstract: In this study we quantify the uncertainty relative to a novel Lagrangian tracking technique to measure the complete solid-body rotation rate of anisotropic micro-plastic fibers. By exploiting their geometry-spec...