Development and investigation of a new type of Air-Separating apparatus ? A vortex rectifier

Suslov, A. D.; Chizhikov, Yu. V.; Іванов, Сергій Віталійович

doi:10.1007/bf01148196

Cited by 5 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The swirling of flow is used in components of heatengineering equipment for enhancement of processes of heat and mass transfer and improvement of the performance of equipment [1,2]. The results of investigations of various researchers [3][4][5] confirm the effectiveness of employing flow swirling in heat exchangers, thermochemical reactors, combustors, steam generators, condensers, and other units.…”

Section: Introductionmentioning

confidence: 89%

Hydraulic Characteristics of Ranque-Hilsch Energy Separators

Пиралишвили

Fuzeeva

2005

High Temp

View full text Add to dashboard Cite

The hydraulic characteristics of an intensely swirling flow in the energy separation chambers in Ranque-Hilsch vortex tubes are investigated analytically and experimentally. Computer codes are developed and realized numerically for the calculation of the aggregate coefficient of hydraulic drag under conditions of swirling flow in an axisymmetric channel of a vortex tube. The results are treated in the form of criteria equations for the calculation of coefficients of hydraulic drag as functions of the basic process and geometric parameters of the vortex tube. The vortex tube hydraulics are studied experimentally, and the results of calculations performed using our procedure are compared with the data of numerical calculation using the commercially available CFX-TASCFlow package and with experimental data. Adequate agreement is observed between the experimentally obtained and numerical calculation results.

show abstract

Section: Introductionmentioning

confidence: 89%

Hydraulic Characteristics of Ranque-Hilsch Energy Separators

Пиралишвили

Fuzeeva

2005

High Temp

View full text Add to dashboard Cite

show abstract

“…Количество публикаций и материалов по исследованию ВТДП ограничено. Резуль-таты экспериментов, поставленных на ВТДП, представлены в монографиях [1][2][3]. Публикации по численному моделирова-нию рабочего процесса ВТДП отсутству-ют, поэтому представляет интерес чис-ленное исследование макро-и микро-структуры потока в ВТДП с определени-ем интегральных характеристик и воз-можности улучшения показателей эффек-тивности работы устройства.…”

Section: Introductionunclassified

Numerical study of the characteristics of a double-circuit vortex tube in a stationary and a nonstationary settings

Александрович

Александровна

2015

VESTNIK of Samara University. Aerospace and Mechanical Engineer

View full text Add to dashboard Cite

Представлены результаты численного моделирования термодинамики закрученного потока при течении в камере энергоразделения вихревых устройств в стационарной и нестационарной постановках. Результаты расчётов подтвердили наличие прецессионного движения приосевого вихревого жгута, пуль-саций скорости, давления и температуры. Их обработка с позиции термодинамики позволила в P,v-диаграмме построить реализуемый крупномасштабными вихревыми структурами обратный цикл, осу-ществляющий основной энергоперенос от периферийных слоёв к приосевым. Выявлено подмешивание подогретых масс газа к охлаждённому потоку у торцевой поверхности диафрагмы за счёт формирующе-гося уголкового вихря. Предложено сопловой ввод сделать наклонным в виде скоса, выполненного по лемнискате Бернулли, что привело к улучшению характеристик энергоразделения на 1,5-2,0 %. Числен-ное моделирование течения в вихревом энергоразделителе и исследование нестационарных явлений, имеющих место в ВТДП, показали, что источником крупномасштабных периодических колебаний в вих-ревой трубе является прецессия вихревого ядра. Различные области потока: зона рециркуляции, вихре-вое ядро, свободная струя на выходе из щелевого диффузора -являются едиными компонентами одной колебательной системы.Вихревая труба с дополнительным потоком, энергоразделение, прецессия, приосевой и перифе-рийный вихри.

show abstract

“…Thus, the problem of studying the stability of a rotating, heated from below, viscous, incompressible liquid of a cylindrical form with free boundaries is reduced to solving the eigen value problem for the system of equations (3), (8), (9) with boundary conditions (10), (12), (13) [4] and with initial conditions (14), (15).…”

mentioning

confidence: 99%

The Stability of a Rotating and Heated From Below Horizontal Cylindrical Layer of a Viscous, Incompressible Liquid with Free Boundaries

Andreeva

Булавин

Ткаченко

2019

EEJP

View full text Add to dashboard Cite

The stability of a rotating and heated from below horizontal cylindrical layer of a viscous, incompressible liquid with free boundaries was theoretically investigated. Neglecting the centrifugal forces, the equations of motion, thermal conductivity and incompressibility of the liquid were written, from which the well-known dispersion equation was derived in the linear approximation. The stability of a rotating cylindrical volume of a liquid with no heating from below was considered, provided that the temperature difference between the horizontal boundaries of the liquid was fixed and equal to zero. It was demonstrated, that with no heating from below the temperature difference between the horizontal boundaries of the rotating liquid was not fixed and not maintained from the outside, the perturbed liquid temperature would increase, but its final value did not exceed the phase transition temperature. The obtained result was used to explain the heating of water in Ranque – Hilsch vortex tubes. It was concluded that the water heating in Ranque -Hilsch tubes should be considered as the inverse Rayleigh problem, in which the temperature gradient can be determined from the known distribution of velocities inside the volume. The stability of a rotating cylindrical volume of a liquid when heated from below was analyzed. It was demonstrated, that the value of the specified temperature difference at cylinder boundaries, as well as the initial rate of its variation, determine the final heating temperature of the liquid. A comparison of the proposed theory and experimental data for water heating shows their good qualitative and quantitative agreement.

show abstract

Development and investigation of a new type of Air-Separating apparatus ? A vortex rectifier

Cited by 5 publications

References 0 publications

Hydraulic Characteristics of Ranque-Hilsch Energy Separators

Hydraulic Characteristics of Ranque-Hilsch Energy Separators

Numerical study of the characteristics of a double-circuit vortex tube in a stationary and a nonstationary settings

The Stability of a Rotating and Heated From Below Horizontal Cylindrical Layer of a Viscous, Incompressible Liquid with Free Boundaries

Contact Info

Product

Resources

About