Results 211 to 220 of about 75,987 (260)
Some of the next articles are maybe not open access.
Self-Propulsion at Low Reynolds Number
Physical Review Letters, 1987We formulate the problem of self-propulsion at low Reynolds number in terms of a gauge field over the space of shapes. The computation of this field is discussed, and carried out in some examples. We apply our results to determine maximally efficient infinitesimal swimming motions of spheres and circular cylinders.
, Shapere, , Wilczek
openaire +2 more sources
Quiet swimming at low Reynolds number
Physical Review E, 2015The stresslet provides a simple model of the flow created by a small, freely swimming and neutrally buoyant aquatic organism and shows that the far field fluid disturbance created by such an organism in general decays as one over distance squared. Here we discuss a quieter swimming mode that eliminates the stresslet component of the flow and leads to a
Anders, Andersen +2 more
openaire +2 more sources
AIP Conference Proceedings, 1976
E d i t o r’s note: This is a reprint (slightly edited) of a paper of the same title that appeared in the book Physics and Our World: A Symposium in Honor of Victor F. Weisskopf, published by the American Institute of Physics (1976). The personal tone of the original talk has been preserved in the paper, which was itself a slightly edited transcript of
openaire +1 more source
E d i t o r’s note: This is a reprint (slightly edited) of a paper of the same title that appeared in the book Physics and Our World: A Symposium in Honor of Victor F. Weisskopf, published by the American Institute of Physics (1976). The personal tone of the original talk has been preserved in the paper, which was itself a slightly edited transcript of
openaire +1 more source
Optimal Length of Low Reynolds Number Nanopropellers
Nano Letters, 2015Locomotion in fluids at the nanoscale is dominated by viscous drag. One efficient propulsion scheme is to use a weak rotating magnetic field that drives a chiral object. From bacterial flagella to artificial drills, the corkscrew is a universally useful chiral shape for propulsion in viscous environments.
Walker (Schamel), D. +4 more
openaire +4 more sources
2009
Newton’s second law of motion stipulates that the rate of change of momentum of a fluid parcel must be balanced by the body force exerted over the parcel volume and by the surface force exerted on the parcel boundary. Under certain conditions, the rate of change of momentum of the parcel is small compared to the body and surface force, and can be ...
openaire +1 more source
Newton’s second law of motion stipulates that the rate of change of momentum of a fluid parcel must be balanced by the body force exerted over the parcel volume and by the surface force exerted on the parcel boundary. Under certain conditions, the rate of change of momentum of the parcel is small compared to the body and surface force, and can be ...
openaire +1 more source
2001
Newton’s second law of motion requires that the rate of change of momentum of a fluid parcel be balanced by the body force exerted on its volume and the surface force exerted on its boundary. Under certain conditions, the rate of change of momentum is small compared to the body and surface force, and may be neglected without introducing serious error ...
Etienne Guyon +3 more
openaire +2 more sources
Newton’s second law of motion requires that the rate of change of momentum of a fluid parcel be balanced by the body force exerted on its volume and the surface force exerted on its boundary. Under certain conditions, the rate of change of momentum is small compared to the body and surface force, and may be neglected without introducing serious error ...
Etienne Guyon +3 more
openaire +2 more sources
Transonic low-Reynolds number airfoils
Journal of Aircraft, 1991Airfoils operating in the unexplored high-Mach—low-Reynolds number regime are computationally investigated. The motivations are 1) quantificatio n of achievable airfoil performance levels; 2) quantificatio n of parameter sensitivities which impact vehicle sizing; 3) identification of possible shortcomings in the computational methods employed; and 4 ...
openaire +1 more source
Dynamic Coupling at Low Reynolds Number
Angewandte Chemie International Edition, 2019AbstractCollective and emergent behaviors of active colloids provide useful insights into the statistical physics of out‐of‐equilibrium systems. Colloidal suspensions containing microscopic active swimmers have been intensively studied to understand the principles of energy transfer at low Reynolds number conditions.
openaire +2 more sources
Transport at Low Reynolds Numbers
1997As discussed in Chapter 1, fluid dynamics at low Reynolds numbers refers to what is commonly known as creeping flow to chemical engineers, and physically corresponds to motion with little or no inertia. Such motion generally arises in systems involving fluids with high viscosity or interacting particles of small dimension.
S. S. Sadhal +2 more
openaire +1 more source
1977
The Reynolds number — introduced in the last chapter in the context of dynamical similarity — can be given a physical interpretation. This is useful in gaining an understanding of the dynamical processes that are important in different Reynolds number ranges, and in formulating corresponding approximations to the equations of motion.
openaire +1 more source
The Reynolds number — introduced in the last chapter in the context of dynamical similarity — can be given a physical interpretation. This is useful in gaining an understanding of the dynamical processes that are important in different Reynolds number ranges, and in formulating corresponding approximations to the equations of motion.
openaire +1 more source