Results 281 to 290 of about 271,940 (302)
Some of the next articles are maybe not open access.
Mathematical Study on Local Fluid Rotation Axis: Vorticity is Not the Rotation Axis
2021A vortex can be intuitively recognized as the rotational/swirling motion of the fluids. The fascination of the phenomenon brought about many years of research to classify and identify the vortical structure. Vorticity was one of the first theories developed to identify the vortex.
Yifei Yu, Charles Nottage, Chaoqun Liu
openaire +2 more sources
Mathematical Modeling of the Polymer Rotational Molding
Volume 1: Symposia, Parts A and B, 2007We study the rimming flow of a viscoelastic film on the inner surface of a horizontal rotating cylinder. Simple lubrication theory is applied assuming that the Reynolds number is small and the liquid film is thin. For the steady-state flow of the Upper-Convected Maxwell (UCM) fluid the mathematical model reduces to a first order nonlinear ODE for the ...
Tyler Brandenburg +4 more
openaire +2 more sources
Mathematical model of pneumatic multichamber rotational drive [PDF]
Soviet Mining Science, 1986 A mathematical model of a pneumatic rotary drill is described which incorporates the pneumatic and thermodynamic parameters of the drill into a design optimization formulation from the standpoint of rock drilling in the mining industry.
L. N. Afanas'ev +2 more
openaire +1 more source
MATHEMATICAL ROTATION OF ORIENTATION DATA
Geological Society of America Bulletin, 1964Three-dimensional rotation, usually done graphically with a stereographic or equal-area net, may be performed mathematically by means of a 3 by 3 matrix. Digital computer programs based on the matrix should be useful in structural and sedimentation studies.
openaire +2 more sources
A mathematical modeling of rotating waves in axial and radial compressors
Archive of Applied Mechanics, 1996zbMATH Open Web Interface contents unavailable due to conflicting licenses.
P. A. Bois, H. Cornille
openaire +2 more sources
Mathematical model of decolourization in a rotating disc reactor
Biochemical Engineering Journal, 2015Abstract This work presents a mathematical model of the biodegradation of an organic dye in a rotating disc reactor operated in a batch mode with discs coated with a mycelium of a white-rot fungus. The two-dimensional model domain represents the surface of one half of a disc. The disc is considered to be covered with two layers (biofilm, liquid film)
T. Skybová, Michal Přibyl, Pavel Hasal
openaire +2 more sources
Codman's paradox of the arm rotations is not a paradox: mathematical validation
Medical Engineering & Physics, 1998Movement of a straight arm centred at the shoulder joint in three successive 90 degrees rotations, each around the respective orthogonal coordinate axis, leads to an apparently unrelated 90 degrees rotation around the longitudinal arm axis. This empirical fact is known as Codman's paradox, after a Bostonian surgeon who first reported it in 1934 ...
Orlando Bravo +3 more
openaire +3 more sources
A mathematical model of pulse plating on a rotating disk electrode
AIChE Journal, 1990AbstractA galvanostatic pulse plating model is presented for the electrodeposition of an alloy on a rotating disk electrode. This model is used to simulate the electrodeposition of nickel/chrome alloys. The mass transport equations used in the model include the effects of diffusion, migration and convection; and the electrode kinetics are described by ...
Yin, Ken-Ming, White, Ralph E.
openaire +2 more sources
Mathematical model of the cylinder rotations in a viscous medium
AIP Conference Proceedings, 2014In the paper movement of a rotating cylinder in a viscous medium is considered. Control law provides given position of the cylinder at the finite time minimizing the work of the drag forces to rotation is found. In the case when the control force is applied in the direction of the axis of symmetry the problem is singular.
openaire +2 more sources
Some aspects of the mathematical modeling of the earth rotation
Advances in Space Research, 2002Abstract A numerical theory of the rigid Earth's rotation taking into account the most essential relativistic perturbations (geodetic perturbations) is developed using improved initial conditions of the numerical integration. The differential equations of the rigid Earth's rotation are solved using the Rodrigues-Hamilton parameters, which describe ...
openaire +2 more sources