Results 51 to 60 of about 46,839 (349)

Vortex Nucleation Induced Phonon Radiation from a Moving Electron Bubble in Superfluid 4He

, 2010
We construct an efficient zero-temperature semi-local density functional to dynamically simulate an electron bubble passing through superfluid 4He under various pressures and electric fields up to nanosecond timescale. Our simulated drift velocity can be
A. F. Borghesani, Dafei Jin, R. J. Donnelly, W. Guo, Wei Guo   +4 more
core   +1 more source

Jet pumps for thermoacoustic applications: design guidelines based on a numerical parameter study [PDF]

, 2015
The oscillatory flow through tapered cylindrical tube sections (jet pumps) is characterized by a numerical parameter study. The shape of a jet pump results in asymmetric hydrodynamic end effects which cause a time-averaged pressure drop to occur under ...
ANSYS, Douglas Wilcox, Idel'chik I., Joris P. Oosterhuis, Oosterhuis J. P., Schlichting H., Simon Bühler, Swift G. W., Theo H. van der Meer   +8 more
core   +4 more sources

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

Advanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey, Arjen van den Berg, Sandra Ruiz Gomez, Claire Donnelly, Dirk Grundler, Sam Ladak   +5 more
wiley   +1 more source

Dynamic vortex characteristics and their contribution to heat transfer enhancement in the channel of a serrated finned tube heat exchanger

Case Studies in Thermal Engineering
The dynamic vortex characteristics and thermal-hydraulic performance of a serrated finned tube heat exchanger were numerically analyzed under varying Reynolds numbers (Re = 10,000–60,000), fin spacing (Sf = 3.63–6.76 mm), and fin height (hf = 10.7–14.7 ...
Zhi-Min Lin, Rui-Xia Yang, Jun-Chuan Hou, Bo Hou, Liang-Bi Wang   +4 more
doaj   +1 more source

Evaluation the possibility of vortex-induced resonance for a multistage pressure reducing valve.

PLoS ONE, 2022
A multistage pressure reducing valve is presented in this paper. The pressure reducing components are specially designed to not only control the flow rate but also effectively prevent the cavitation vibration.
Dongtao Xu, Changrong Ge, Ying Li, Yuejuan Liu   +3 more
doaj   +1 more source

Effect of compound lean blades on separation structures in high loaded compressor cascades under high subsonic condition

Frontiers in Energy Research, 2022
Three-dimensional separation is an inherent flow feature in the blade-end corner of compressors passage, which is a primary source of entropy generation and loss.
Chuansijia Tao, Xin Du, Xun Zhou, Yizhou Luo, Wenjuan Xu, Songtao Wang, Zhongqi Wang   +6 more
doaj   +1 more source

Lagrangian and spectral analysis of the forced flow past a circular cylinder using pulsed tangential jets [PDF]

, 2012
We numerically investigate the influence of pulsed tangential jets on the flow past a circular cylinder. To this end a spectral-Lagrangian dual approach is completed on the basis of time-series data.
Bury, Yannick, Jardin, Thierry
core   +3 more sources

Crack‐Growing Interlayer Design for Deep Crack Propagation and Ultrahigh Sensitivity Strain Sensing

Advanced Functional Materials, EarlyView.
A crack‐growing semi‐cured polyimide interlayer enabling deep cracks for ultrahigh sensitivity in low‐strain regimes is presented. The sensor achieves a gauge factor of 100 000 at 2% strain and detects subtle deformations such as nasal breathing, highlighting potential for minimally obstructive biomedical and micromechanical sensing applications ...
Minho Kim, Taewi Kim, Jieun Park, Insic Hong, Myungrae Hong, Seonggyeong Park, Beomjin Kim, Sehyuk Ahn, Siwoo Jang, Seungyong Han, Je‐Sung Koh, Daeshik Kang   +11 more
wiley   +1 more source

Numerical simulation of terrain-induced vortex/wave shedding at the Hong Kong International Airport

Meteorologische Zeitschrift, 2013
The present study aims at simulating the shedding of vortex/wave from a mountain nearby the Hong Kong International Airport using a computational fluid dynamics model by employing high resolution terrain data without smoothing.
Li Lei, P.W. Chan, Zhang Li-Jie, Mao Hui
doaj   +1 more source

Adjoint-Based Aerodynamic Design Optimization and Drag Reduction Analysis of a Military Transport Aircraft Afterbody

Aerospace, 2023
Based on the adjoint method, the afterbody of a military transport aircraft was optimized and designed to meet engineering constraints under real flight conditions.
Hanyue Rao, Yifu Chen, Yayun Shi, Tihao Yang, Hongyang Liu   +4 more
doaj   +1 more source