Results 1 to 10 of about 110,195 (165)

Numerical Validation of a Multi-Dimensional Similarity Law for Scaled STOVL Aircraft Models

Aerospace
The complex jet-ground interactions of Short Take-off and Vertical Landing (STOVL) aircraft are critical to flight safety and performance, yet studying them with traditional full-scale wind tunnel tests is prohibitively expensive and time-consuming ...
Shengguan Xu, Mingyu Li, Xiance Wang, Yanting Song, Bingbing Tang, Lianhe Zhang, Shuai Yin, Jianfeng Tan   +7 more
doaj   +1 more source

Laminar-to-Turbulence Transition Revealed Through a Reynolds Number Equivalence

Engineering, 2019
Flow transition from laminar to turbulent mode (and vice versa)—that is, the initiation of turbulence—is one of the most important research subjects in the history of engineering.
Xiao Dong Chen
doaj   +1 more source

Optimal Strokes of Low Reynolds Number Linked-Sphere Swimmers

Applied Sciences, 2019
Optimal gait design is important for micro-organisms and micro-robots that propel themselves in a fluid environment in the absence of external force or torque.
Qixuan Wang
doaj   +1 more source

Steady flow over triangular extended solid attached to square cylinder – A method to reduce drag

Ain Shams Engineering Journal, 2015
Numerical analysis of two dimensional steady flows over a triangular extended solid (thorn) attached to square cylinder positioned at front stagnation point and at rear stagnation point separately is reported at low Reynolds number (Re = 40).
Prasenjit Dey, Ajoy Kr. Das
doaj   +1 more source

Investigating the experimental parameters of a rib triple pipe heat exchanger

Case Studies in Thermal Engineering, 2023
In the current research, the triple concentric-pipe heat exchanger is experimentally inspected with regard to the double concentric-pipe heat exchanger.
Kafel Azeez, Zain Alabdeen H. Obaid, Khamis Musdif Their   +2 more
doaj   +1 more source

Influence of Chemical Kinetics on Tulip Flame Formation in Highly Reactive (H₂/Air) and Low Reactive (CH₄/Air) Mixtures

Energies
The early stages of hydrogen–air and methane–air flame dynamics and the development and evolution of tulip flames in closed tubes of various aspect ratios and in a semi-open tube are studied by solving the fully compressible reactive Navier–Stokes ...
Chengeng Qian, Mikhail A. Liberman
doaj   +1 more source

Strouhal number analysis for the swimming of little penguin (Eudyptula minor): Proof of efficient underwater propulsion

Results in Engineering, 2023
Penguins are the utmost specialized wing-propelled divers as their flapping action is accountable for the entire underwater propulsion. However, numerical evidence of how efficient their underwater propulsion is has not been studied to date.
Mahadi Hasan Masud, Peter Dabnichki
doaj   +1 more source

Wing Efficiency Enhancement at Low Reynolds Number

Aerospace
The aerodynamic performance of wings degrades severely at low Reynolds number; lift often becomes non-linear, while drag increases significantly, caused by large extents of separation.
Lance W. Traub
doaj   +1 more source

Influence of the Reynolds Number on Transonic Tip Flow

International Journal of Aerospace Engineering, 2020
The tip flows in modern gas turbines are primarily transonic under realistic conditions and significantly impact the overall thrust performance and safety of the turbines.
Wuheng Feng, Yuxin Zhao, Qiancheng Wang, Chenglong Wang   +3 more
doaj   +1 more source

Rotational Maneuvers of Copepod Nauplii at Low Reynolds Number

Fluids, 2020
Copepods are agile microcrustaceans that are capable of maneuvering freely in water. However, the physical mechanisms driving their rotational motion are not entirely clear in small larvae (nauplii).
Kacie T. M. Niimoto, Kyleigh J. Kuball, Lauren N. Block, Petra H. Lenz, Daisuke Takagi   +4 more
doaj   +1 more source