An accelerating inverted wing with ground effect: downforce measurement and reconstruction [0.03%]
一种地面效应倒立机翼的加速飞行：下压力测量与重建方法研究
Shanwei Zhou,Edwin F J Overmars,Jerry Westerweel
Shanwei Zhou
This paper presents an experiment designed to measure the downforce generated by an inverted wing under ground effect conditions, during both accelerating and steady motion. The flow around the wing is captured using high-speed planar parti...
Gyroid porous inserts as a novel flow control to mitigate tip vortex cavitation [0.03%]
新型流道控制措施用于叶轮叶片 trailing edge 气穴的抑制：gyroid多孔结构插入件
Thomas Berger,Mohamed Farhat
Thomas Berger
Tip vortices generated at the tip of lifting surfaces pose significant challenges in fluid dynamics, causing induced drag, noise, and cavitation erosion risk across aerospace and hydraulic applications. Among the various mitigation strategi...
Time-resolved X-ray radiography of through-thickness liquid transport in partly saturated needle-punched nonwovens [0.03%]
针刺非织造布分段饱和厚度方向输运的瞬态X射线成像
Patrick Wegele,Zisheng Yao,Jonas Tejbo et al.
Patrick Wegele et al.
Nonwoven fibre networks underpin filtration, insulation and geotextiles, where liquid uptake, redistribution and release govern performance. In needle-punched felts, barbed needles mechanically entangle fibres and partially reorient them to...
Experimental study of fluid-thermal-structural interactions in a Mach-10 compression corner using super-ellipse-based photogrammetry [0.03%]
基于超级椭圆的立体测量方法在马赫数为10压缩菱角中流热结构相互作用实验研究
Travis A Duchene,Antonio G Schöneich,Brett F Bathel et al.
Travis A Duchene et al.
An experimental study is conducted of the fluid-thermal-structural interaction of a clamped compliant panel exposed to the intense shock-wave/boundary-layer interaction (SWBLI) induced by a compression ramp at Mach 10. Initial measurements ...
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...