ASSESSMENT OF PULSE ELECTRIC DISCHARGE ON THE PROCESS OF TRANSFER OF SUBSTANCE IN PLANT MATERIAL

Проведена оценка выхода внутриклеточной жидкости из модифицированного импульсным электрическим разрядом растительного материала в начальный момент времени. Прослежена связь геометрических параметров, сформированных электрическим разрядом каналов, и внутриклеточного давления, играющих важную роль с точки зрения экспериментального определения количества выходящей внутриклеточной жидкости. Установлено, что количество жидкости на поверхности материала в диапазоне количества каналов 0 < n < 1500 имеет линейную зависимость. An assessment of the release of intracellular fluid from a plant material modified by a pulsed electrical discharge at the initial moment of time was made. The relationship between the geometric parameters of the channels formed by the electric discharge and the intracellular pressure, which play an important role from the point of view of experimental determination of the amount of intracellular fluid leaving, is traced. It is established that the amount of liquid on the material surface in the range of the number of channels 0 < n < 1500 has a linear relationship.

Excitation Of Localized Wave Packet In 3d Supersonic Boundary Layer

The results of experimental study of excitation of localized in time and space controlled disturbances (wave packets) in a supersonic swept-wing boundary layer are presented. The experiments were performed at Mach number M = 2 on the model of wing with a lenticular profile and a 40 degrees sweep angle of the leading edge at zero angle of attack. Wave packets were generated by a pulse electric discharge on the surface of the model. A structure of controlled wave packet was studied. It was found that the wave packet has an asymmetric shape. Comparison with the case of twodimensional boundary layer was done.

Effect of Pulse Electric Discharging on the Directional Solidification Structure of Pure Aluminum

The effect of the pulse electric discharging (PED) on the solidification structure of pure aluminum during the directional solidification was investigated. Experimental results showed that fine microstructures were generated by exerting PED, and the cellular spacing decreased greatly with increasing current density. The effect of pulse electric discharge on the temperature gradient in front of the solid-liquid interface was analyzed, the cellular spacing was measured and expressed as the function of solidification processing parameter by using a nonlinear regression analysis, and the refinement mechanism using the PED treatment was also discussed.