Results 91 to 100 of about 950,297 (340)
Continuous breakdown of Purcell's scallop theorem with inertia
, 2007 Purcell's scallop theorem defines the type of motions of a solid body - reciprocal motions - which cannot propel the body in a viscous fluid with zero Reynolds number. For example, the flapping of a wing is reciprocal and, as was recently shown, can lead
Alexander R. M. +3 more
core +1 more source
Soft Robotic Engines with Non‐Reciprocal Motion by Physical Intelligence
Advanced Materials, EarlyView.Movement is vital, and it requires breaking symmetry. This study introduces a hydrogel engine that achieves non‐reciprocal motion through kinetic asymmetry in repeated actuation cycles. This approach for breaststroke‐swimming‐like motion is embedded inside the material and establishes a new paradigm of physical intelligence for soft robotics.
Oliver Skarsetz +10 more
wiley +1 more source
Surfactant Assemblies Directing Chemical Transfer Cascades in Convective Marangoni Flow Pumps
Advanced Materials Interfaces, EarlyView.Convective Marangoni flow pumps allow for chemical transfer cascades amongst droplets that are positioned at the air/water interface. The system comprises of myelins progressing along surface tension gradients, delivering amphiphiles at oil droplets and thereby triggering the emission of emulsified microdroplets, which in turn follow the Marangoni ...
Dimitrios Karagrigoriou +1 more
wiley +1 more source
The transonic Reynolds number problem [PDF]
Problems in modeling the complex interacting flow fields in the transonic speed regime are reviewed. The limitations of wind tunnel test capabilities are identified, and options for resolving the deficiency are examined.
Jones, J. L.
core +1 more source
, 2004 Studies of the relation between the shear parameter S^* and the Reynolds number Re are presented for a nearly homogeneous and statistically stationary turbulent shear flow.
Jörg Schumacher, Kolmogorov A. N.
core +1 more source
Development of a Miniaturized Capillary Rheometer for High Shear Rate Rheology of Dense Suspensions
Advanced Materials Technologies, EarlyView.This research presents a downscaled benchtop, low‐cost capillary rheometer that can characterize high shear rate rheometry of dense suspensions. The device is capable of measuring across a wide range of applicable shear rates using only a limited quantity of material and addresses a need for an accurate and affordable capillary rheometer.
John P. Reynolds +6 more
wiley +1 more source
Resolving high Reynolds numbers in SPH simulations of subsonic turbulence
, 2011 Accounting for the Reynolds number is critical in numerical simulations of turbulence, particularly for subsonic flow. For Smoothed Particle Hydrodynamics (SPH) with constant artificial viscosity coefficient alpha, it is shown that the effective Reynolds
Price, Daniel J.
core +1 more source
Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review
Advanced Robotics Research, EarlyView.Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley +1 more source
HeliyonThe rapid advancement of Micro-Electro-Mechanical Systems (MEMS) technology has established microfluidics as a pivotal field. This technology marks the onset of a new era in various applications, including drug testing, cell culture, and disease ...
Hua Dong, Longrun Huang, Liang Zhao
doaj +1 more source
Hard‐Magnetic Soft Millirobots in Underactuated Systems
Advanced Robotics Research, EarlyView.This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang +4 more
wiley +1 more source