Evaluation of Changing the Structure of Water and Aqueous Solutions by External Influences

2015 ◽  
Vol 22 (2) ◽  
pp. 88-96
Author(s):  
Горленко ◽  
N. Gorlenko ◽  
Антошкин ◽  
L. Antoshkin ◽  
Саркисов ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Boundary Layer ◽  
Aqueous Solutions ◽  
Methodological Approach ◽  
Temperature Influence ◽  
Oscillatory Circuit ◽  
Structure Of Water ◽  
Electric Capacity ◽  
Free Molecules ◽  
Field Influence

With use of the new methodological approach the changes of structure of water and aqueous solutions are investigated at the various influences including change of temperature, influence of magnetic field, influence of a material of a surface in boundary layer and other factors. It is shown, that rising (depression) of electric capacity and (or) Q of an oscillatory circuit at the used influences reflect an ascending (a decrease) of mobility of dipoles of water in a variable electric floor (at usual and (or) resonant regimens of its influence) and, obviously, testify to decrease (augmentation) of structure of water and aqueous solutions. The structure of water and aqueous solutions, evidentiary, depends on the amount of free molecules of water and associate molecules of water, for example, in cluster, hydrated formations and interaction between them, and also from change of concentration of the dissolved gases.

scholarly journals EVALUATION OF THE FEATURES OF THE STRUCTURE OF WATER AND AQUEOUS SOLUTIONS NEAR A SOLID SURFACE

Globus ◽  
2021 ◽  
Vol 7 (6(63)) ◽  
pp. 10-16
Author(s):  
Galina Nikolaevna Sidorenko ◽  
Boris Innokentievich Laptev ◽  
Nikolai Petrovich Gorlenko
Keyword(s):  
Boundary Layer ◽  
Aqueous Solutions ◽  
Solid Surface ◽  
Structural Organization ◽  
Wall Layer ◽  
Electrical Capacitance ◽  
Structure Of Water ◽  
Wall Boundary Layer ◽  
Electric Capacity ◽  
Surface Changes

The paper evaluates changes in the structure of water and aqueous solutions of sodium chloride in the wall layer on the basis of dielectrometry and correlation analysis. It is shown that when the distance to the solid surface decreases, there is a multi-fold nonlinear decrease in the electrical capacitance and a nonlinear change in the Sr parameter, which characterizes the magnitude of the change in the electrical capacitance of the conduction fluid when the distance to the solid surface changes. The parameters used in the work (electric capacity of liquids and Sr ) can be used to evaluate the changes in the structural organization of aqueous solutions in the wall (boundary) layer and to interpret the processes occurring in the liquid layer at the interface of the solid – aqueous solution phases.

Concerning the mechanism of the influence of a magnetic field of aqueous solutions of salts

1969 ◽  
Vol 98 (5) ◽  
pp. 195-199 ◽  
Author(s):  
O.I. Martynova ◽  
B.T. Gusev ◽  
E.A. Leont'ev
Keyword(s):  
Magnetic Field ◽  
Aqueous Solutions

Physical Interpretations of Internal Magnetic Field Influence on Processes in Tribocontact of Textured Dimple Surfaces

2019 ◽  
Vol 11 (5) ◽  
pp. 05013-1-05013-5
Author(s):  
V. Ye. Marchuk ◽  
◽  
M. V. Kindrachuk ◽  
V. I. Mirnenko ◽  
R. G. Mnatsakanov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Internal Magnetic Field ◽  
Field Influence

Magnetic field influence on MQW laser

2008 ◽  
Author(s):  
Amange F. Boya ◽  
Abdulghafoor I. Abdullah
Keyword(s):  
Magnetic Field ◽  
Field Influence

Circulation control in magnetohydrodynamic rotating flows

2017 ◽  
Vol 829 ◽  
pp. 328-344 ◽  
Author(s):  
V. D. Borisevich ◽  
E. P. Potanin ◽  
J. Whichello
Keyword(s):  
Magnetic Field ◽  
Boundary Layer ◽  
Exact Analytical Solution ◽  
External Rotation ◽  
Three Dimensional ◽  
Flow Characteristics ◽  
Rotating Cylinder ◽  
Rotating Disc ◽  
Angular Velocities ◽  
Energy Equations

A model of a laminar viscous conducting flow, near a dielectric disc in a uniform magnetic field and in the presence of external rotation, is considered, where there is a uniform suction and an axial temperature gradient between the flow and the disc’s surface. It is assumed that the parameters of the suction or the magnetohydrodynamic (MHD) interaction are such that the nonlinear inertial terms, related to the circulation flow, are negligible in the differential equations of the MHD boundary layer on a rotating disc. Analysis of the motion and energy equations, taking the dependence of density on temperature into account, is carried out using the Dorodnitsyn transformation. The exact analytical solution for the boundary layer and heat transfer equations is obtained and analysed, neglecting the viscous and Joule dissipation. The dependence of the flow characteristics in the boundary layer on the rate of suction and the magnetic field induction is studied. It is shown that the direction of the radial flow in the boundary layer on a disc can be changed, not only by variation of the ratio between the angular velocities in the external flow and the boundary layer, but also by changing the ratio of the temperatures in these two flows, as well as by varying the hydrodynamic Prandtl number. The approximate calculation of a three-dimensional flow in a rotating cylinder with a braking disc (or lid) is carried out, demonstrating that a magnetic field slows the circulation velocity in a rotating cylinder.

NUMERICAL SIMULATION OF MARANGONI MAGNETOHYDRODYNAMIC BIO-NANOFLUID CONVECTION FROM A NON-ISOTHERMAL SURFACE WITH MAGNETIC INDUCTION EFFECTS: A BIO-NANOMATERIAL MANUFACTURING TRANSPORT MODEL

2014 ◽  
Vol 14 (03) ◽  
pp. 1450039 ◽  
Author(s):  
O. ANWAR BÉG ◽  
M. FERDOWS ◽  
S. SHAMIMA ◽  
M. NAZRUL ISLAM
Keyword(s):  
Magnetic Field ◽  
Boundary Layer ◽  
Prandtl Number ◽  
Stream Function ◽  
Magnetic Induction ◽  
Body Force ◽  
Volume Fraction ◽  
Solid Volume Fraction ◽  
Convection Boundary Layer ◽  
Force Parameter

Laminar magnetohydrodynamic Marangoni-forced convection boundary layer flow of a water-based biopolymer nanofluid containing nanoparticles from a non-isothermal plate is studied. Magnetic induction effects are incorporated. A variety of nanoparticles are studied, specifically, silver, copper, aluminium oxide and titanium oxide. The Tiwari–Das model is utilized for simulating nanofluid effects. The normalized ordinary differential boundary layer equations (mass, magnetic field continuity, momentum, induced magnetic field and energy conservation) are solved subject to appropriate boundary conditions using Maple shooting quadrature. The influence of Prandtl number (Pr), magnetohydrodynamic body force parameter (β), reciprocal of magnetic Prandtl number (α) and nanofluid solid volume fraction (φ) on velocity, temperature and magnetic stream function distributions is investigated in the presence of strong Marangoni effects (ξ i.e., Marangoni parameter is set as unity). Magnetic stream function is accentuated with body force parameter. The flow is considerably decelerated as is magnetic stream function gradient, with increasing nanofluid solid volume fraction, whereas temperatures are significantly enhanced. Interesting features in the flow regime are explored. The study finds applications in the fabrication of complex biomedical nanofluids, biopolymers, etc.

Sign in / Sign up

Export Citation Format

Share Document