Pub Date : 2023-08-01DOI: 10.20537/2076-7633-2023-15-4-845-860
Luka Sergeyevich Volkov, A. A. Firsov
When a supersonic air flow interacts with a transverse secondary jet injected into this flow through an orifice on a flat wall, a special flow structure is formed. This flow takes place during fuel injection into combustion chambers of supersonic aircraft engines; therefore, in recent years, various approaches to intensifying gas mixing in this type of flow have been proposed and studied in several countries. The approach proposed in this work implies using spark discharges for pulsed heating of the gas and generating the instabilities in the shear layer at the boundary of the secondary jet. Using simulation in the software package FlowVision 3.13, the characteristics of this flow were obtained in the absence and presence of pulsed-periodic local heat release on the wall on the windward side of the injector opening. A comparison was made of local characteristics at different periodicities of pulsed heating (corresponding to the values of the Strouhal number 0 . 25 and 0 . 31 ). It is shown that pulsed heating can stimulate the formation of perturbations in the shear layer at the jet boundary. For the case of the absence of heating and for two modes of pulsed heating, the values of an integral criterion for mixing efficiency were calculated. It is shown that pulsed heating can lead both to a decrease in the average mixing efficiency and to its increase (up to 9 % in the considered heating mode). The calculation method used (unsteady Reynolds-averaged Navier – Stokes equations with a modified k - ε turbulence model) was validated by considering a typical case of the secondary transverse jet interaction with a supersonic flow, which was studied by several independent research groups and well documented in the literature. The grid convergence was shown for the simulation of this typical case in FlowVision. A quantitative comparison was made of the results obtained from FlowVision calculations with experimental data and calculations in other programs. The results of this study can be useful for specialists dealing with the problems of gas mixing and combustion in a supersonic flow, as well as the development of engines for supersonic aviation.
{"title":"Modeling the influence of repetitively pulsed heating on the formation of perturbations at the boundary of a transverse jet in a supersonic crossflow","authors":"Luka Sergeyevich Volkov, A. A. Firsov","doi":"10.20537/2076-7633-2023-15-4-845-860","DOIUrl":"https://doi.org/10.20537/2076-7633-2023-15-4-845-860","url":null,"abstract":"When a supersonic air flow interacts with a transverse secondary jet injected into this flow through an orifice on a flat wall, a special flow structure is formed. This flow takes place during fuel injection into combustion chambers of supersonic aircraft engines; therefore, in recent years, various approaches to intensifying gas mixing in this type of flow have been proposed and studied in several countries. The approach proposed in this work implies using spark discharges for pulsed heating of the gas and generating the instabilities in the shear layer at the boundary of the secondary jet. Using simulation in the software package FlowVision 3.13, the characteristics of this flow were obtained in the absence and presence of pulsed-periodic local heat release on the wall on the windward side of the injector opening. A comparison was made of local characteristics at different periodicities of pulsed heating (corresponding to the values of the Strouhal number 0 . 25 and 0 . 31 ). It is shown that pulsed heating can stimulate the formation of perturbations in the shear layer at the jet boundary. For the case of the absence of heating and for two modes of pulsed heating, the values of an integral criterion for mixing efficiency were calculated. It is shown that pulsed heating can lead both to a decrease in the average mixing efficiency and to its increase (up to 9 % in the considered heating mode). The calculation method used (unsteady Reynolds-averaged Navier – Stokes equations with a modified k - ε turbulence model) was validated by considering a typical case of the secondary transverse jet interaction with a supersonic flow, which was studied by several independent research groups and well documented in the literature. The grid convergence was shown for the simulation of this typical case in FlowVision. A quantitative comparison was made of the results obtained from FlowVision calculations with experimental data and calculations in other programs. The results of this study can be useful for specialists dealing with the problems of gas mixing and combustion in a supersonic flow, as well as the development of engines for supersonic aviation.","PeriodicalId":37429,"journal":{"name":"Computer Research and Modeling","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87528443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-01DOI: 10.20537/2076-7633-2023-15-4-1009-1023
Andrey A. Aksenov, S. V. Zhluktov, V. I. Pokhilko, Konstantin Eduardovich Sorokin
{"title":"Implicit algorithm for solving equations of motion of incompressible fluid","authors":"Andrey A. Aksenov, S. V. Zhluktov, V. I. Pokhilko, Konstantin Eduardovich Sorokin","doi":"10.20537/2076-7633-2023-15-4-1009-1023","DOIUrl":"https://doi.org/10.20537/2076-7633-2023-15-4-1009-1023","url":null,"abstract":"","PeriodicalId":37429,"journal":{"name":"Computer Research and Modeling","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78035046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-01DOI: 10.20537/2076-7633-2023-15-4-995-1008
Andrey A. Aksenov, V. I. Pokhilko, Andrey P Moryak
{"title":"Usage of boundary layer grids in numerical simulations of viscous phenomena in of ship hydrodynamics problems","authors":"Andrey A. Aksenov, V. I. Pokhilko, Andrey P Moryak","doi":"10.20537/2076-7633-2023-15-4-995-1008","DOIUrl":"https://doi.org/10.20537/2076-7633-2023-15-4-995-1008","url":null,"abstract":"","PeriodicalId":37429,"journal":{"name":"Computer Research and Modeling","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84911744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-13DOI: 10.37539/230607.2023.42.55.002
Е.П. Лапынина, Анатолий Иванович Касьянов
Определен коэффициент теплопередачи пчелиных сотов. Установлено, что коэффициент передачи тепла светлыми сотами составляет 2,77 Вт/м∙град, темными - 3,05 Вт/м∙град. Таким образом, сложившееся в пчеловодстве мнение о хорошем теплозащитном качестве старых сотов является ошибочным. Старые темные соты с точки зрения теплозащитных свойств никаких преимуществ перед молодыми светлыми не имеют. The heat transfer coefficient of honeycombs is determined. It has been established that the coefficient of heat transfer by light honeycombs is 2,77 W/m∙С°, by dark ones - 3,05 W/m∙С°. Thus, the opinion that has developed in beekeeping about the good heat-shielding quality of old combs is erroneous. Old dark honeycombs in terms of heat-shielding properties do not have any advantages over young light ones.
{"title":"HEAT TRANSFER COEFFICIENTOF HONEYCOMBS","authors":"Е.П. Лапынина, Анатолий Иванович Касьянов","doi":"10.37539/230607.2023.42.55.002","DOIUrl":"https://doi.org/10.37539/230607.2023.42.55.002","url":null,"abstract":"Определен коэффициент теплопередачи пчелиных сотов. Установлено, что коэффициент передачи тепла светлыми сотами составляет 2,77 Вт/м∙град, темными - 3,05 Вт/м∙град. Таким образом, сложившееся в пчеловодстве мнение о хорошем теплозащитном качестве старых сотов является ошибочным. Старые темные соты с точки зрения теплозащитных свойств никаких преимуществ перед молодыми светлыми не имеют.\u0000 The heat transfer coefficient of honeycombs is determined. It has been established that the coefficient of heat transfer by light honeycombs is 2,77 W/m∙С°, by dark ones - 3,05 W/m∙С°. Thus, the opinion that has developed in beekeeping about the good heat-shielding quality of old combs is erroneous. Old dark honeycombs in terms of heat-shielding properties do not have any advantages over young light ones.","PeriodicalId":37429,"journal":{"name":"Computer Research and Modeling","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83796508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-13DOI: 10.37539/230607.2023.60.61.003
София Андреевна Рудая, Наталья Александровна Малишевская
Представленная научно-исследовательская работа посвящена анализу актуальных проблем и перспектив преподавания английского языка в высших учебных заведениях. Автором обозначены и проанализированы наиболее оптимальные модели преподавания зарубежного языка, с учетом факторов лингвистической социализации молодых граждан. Выделены проблемы и предложены рекомендации по совершенствованию преподавательского процесса. Выводом данного исследования стала новая модель мотивации студентов в рамках изучения английского языка в институтах России. The presented research paper is devoted to the analysis of current problems and prospects of teaching English in higher educational institutions. The author identifies and analyzes the most optimal models of teaching a foreign language, taking into account the factors of linguistic socialization of young citizens. The problems are highlighted and recommendations for improving the teaching process are proposed. The conclusion of this study was a new model of motivation of students in the framework of learning English in Russian institutes.
{"title":"CURRENT ISSUES OF HIGHER EDUCATION RELATED TO THE TEACHING OF ENGLISH","authors":"София Андреевна Рудая, Наталья Александровна Малишевская","doi":"10.37539/230607.2023.60.61.003","DOIUrl":"https://doi.org/10.37539/230607.2023.60.61.003","url":null,"abstract":"Представленная научно-исследовательская работа посвящена анализу актуальных проблем и перспектив преподавания английского языка в высших учебных заведениях. Автором обозначены и проанализированы наиболее оптимальные модели преподавания зарубежного языка, с учетом факторов лингвистической социализации молодых граждан. Выделены проблемы и предложены рекомендации по совершенствованию преподавательского процесса. Выводом данного исследования стала новая модель мотивации студентов в рамках изучения английского языка в институтах России.\u0000 The presented research paper is devoted to the analysis of current problems and prospects of teaching English in higher educational institutions. The author identifies and analyzes the most optimal models of teaching a foreign language, taking into account the factors of linguistic socialization of young citizens. The problems are highlighted and recommendations for improving the teaching process are proposed. The conclusion of this study was a new model of motivation of students in the framework of learning English in Russian institutes.","PeriodicalId":37429,"journal":{"name":"Computer Research and Modeling","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90950464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-08DOI: 10.37539/230515.2023.18.53.005
Мария Альбертовна Элинсон, Раиль Данилович Хаидаров, Ильдар Рамилевич Зиннатуллин
В данной статье говорится о том, что прогресс человечества привел к пренебрежению глобального потепления, которое было вызвано увеличением выбросов CO2. Это разрушает атмосферу, вызывая повышение температуры и суровые погодные условия, влияющие на производство воды и продуктов питания. Ископаемое топливо, вырубка лесов, транспорт и животноводство способствуют выбросам парниковых газов. Глобальное потепление вызывает наводнения, голод, вырубку лесов, лесные пожары и засуху, создавая серьезную угрозу человечеству. This article says that the progress of mankind has led to the neglect of global warming, which was caused by an increase in CO2 emissions. This destroys the atmosphere, causing a rise in temperature and severe weather conditions affecting the production of water and food. Fossil fuels, deforestation, transportation and animal husbandry contribute to greenhouse gas emissions. Global warming causes floods, famine, deforestation, forest fires and drought, posing a serious threat to humanity.
{"title":"GLOBAL WARMING","authors":"Мария Альбертовна Элинсон, Раиль Данилович Хаидаров, Ильдар Рамилевич Зиннатуллин","doi":"10.37539/230515.2023.18.53.005","DOIUrl":"https://doi.org/10.37539/230515.2023.18.53.005","url":null,"abstract":"В данной статье говорится о том, что прогресс человечества привел к пренебрежению глобального потепления, которое было вызвано увеличением выбросов CO2. Это разрушает атмосферу, вызывая повышение температуры и суровые погодные условия, влияющие на производство воды и продуктов питания. Ископаемое топливо, вырубка лесов, транспорт и животноводство способствуют выбросам парниковых газов. Глобальное потепление вызывает наводнения, голод, вырубку лесов, лесные пожары и засуху, создавая серьезную угрозу человечеству.\u0000 This article says that the progress of mankind has led to the neglect of global warming, which was caused by an increase in CO2 emissions. This destroys the atmosphere, causing a rise in temperature and severe weather conditions affecting the production of water and food. Fossil fuels, deforestation, transportation and animal husbandry contribute to greenhouse gas emissions. Global warming causes floods, famine, deforestation, forest fires and drought, posing a serious threat to humanity.","PeriodicalId":37429,"journal":{"name":"Computer Research and Modeling","volume":"139 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86695680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-08DOI: 10.37539/230515.2023.65.66.008
Алиса Казбековна Есиева, Людмила Муратовна Кубалова
В работе описаны роль и применение программированного обучения с использованием сервисов Google для повышения мотивации обучающихся к изучению химии. The paper describes the role and application of programmed learning using Google services to increase the motivation of students to study chemistry.
{"title":"USING PROGRAMMED LEARNING TO INCREASE MOTIVATION TO STUDY CHEMISTRY","authors":"Алиса Казбековна Есиева, Людмила Муратовна Кубалова","doi":"10.37539/230515.2023.65.66.008","DOIUrl":"https://doi.org/10.37539/230515.2023.65.66.008","url":null,"abstract":"В работе описаны роль и применение программированного обучения с использованием сервисов Google для повышения мотивации обучающихся к изучению химии.\u0000 The paper describes the role and application of programmed learning using Google services to increase the motivation of students to study chemistry.","PeriodicalId":37429,"journal":{"name":"Computer Research and Modeling","volume":"217 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79667618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
В публикации рассмотрена разработка рецептуры напитка на основе кофе, заваренного в капельной кофеварке. Для составления купажа используются пюре бергамота и фейхоа, эфирное масло сандалового дерева, порошок мескита, порошки фиолетовой кукурузы и лукумы. Изучены физико-химические и органолептические показатели сырья и готовых напитков. Разработана технологическая схема получения напитков с суперфудами. The publication discusses the development of a drink formulation based on coffee brewed in a drip coffee maker. To compose the blend, bergamot and feijoa puree, sandalwood essential oil, mesquite powder, purple corn and lucuma powders are used. The physicochemical and organoleptic characteristics of raw materials and finished drinks have been studied. A technological scheme for obtaining drinks with superfoods has been developed.
{"title":"DEVELOPMENT OF A COFFEE DRINK WITH THE ADDITION OF SUPERFOODS","authors":"Д.А. Клемешов, Алина Салаватовна Назарова, Станислав Геннадьевич Галкин","doi":"10.37539/230515.2023.14.30.003","DOIUrl":"https://doi.org/10.37539/230515.2023.14.30.003","url":null,"abstract":"В публикации рассмотрена разработка рецептуры напитка на основе кофе, заваренного в капельной кофеварке. Для составления купажа используются пюре бергамота и фейхоа, эфирное масло сандалового дерева, порошок мескита, порошки фиолетовой кукурузы и лукумы. Изучены физико-химические и органолептические показатели сырья и готовых напитков. Разработана технологическая схема получения напитков с суперфудами.\u0000 The publication discusses the development of a drink formulation based on coffee brewed in a drip coffee maker. To compose the blend, bergamot and feijoa puree, sandalwood essential oil, mesquite powder, purple corn and lucuma powders are used. The physicochemical and organoleptic characteristics of raw materials and finished drinks have been studied. A technological scheme for obtaining drinks with superfoods has been developed.","PeriodicalId":37429,"journal":{"name":"Computer Research and Modeling","volume":"194 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83497496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-08DOI: 10.37539/230515.2023.26.80.004
А.О. Андрух
В статье рассматриваются эффективные условия применения принципа междисциплинарности при формировании антикризисной коммуникативной компетенции бакалавров-экономистов. The article discusses the effective conditions for the application of the principle of interdisciplinarity in the formation of anti-crisis communicative competence of bachelor economists.
{"title":"FORMATION OF ANTI-CRISIS COMMUNICATIVE COMPETENCE OF BACHELOR ECONOMISTS: THE PRINCIPLE OF INTERDISCIPLINARITY","authors":"А.О. Андрух","doi":"10.37539/230515.2023.26.80.004","DOIUrl":"https://doi.org/10.37539/230515.2023.26.80.004","url":null,"abstract":"В статье рассматриваются эффективные условия применения принципа междисциплинарности при формировании антикризисной коммуникативной компетенции бакалавров-экономистов.\u0000 The article discusses the effective conditions for the application of the principle of interdisciplinarity in the formation of anti-crisis communicative competence of bachelor economists.","PeriodicalId":37429,"journal":{"name":"Computer Research and Modeling","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81209659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-08DOI: 10.37539/230515.2023.22.33.002
Е.В. Фролова
В научной статье рассматривается проблема формирования правовой грамотности студентов неюридических направлений подготовки в процессе правового образования в вузе. Сделан вывод о том, что правовая грамотность - это качество личности, выражающееся в совокупности правовых знаний и способности руководствоваться ими в различных сферах жизнедеятельности. Предложены некоторые пути, способствующие повышению эффективности формирования правовой грамотности студентов неюридических направлений подготовки за счет внедрения в учебные планы элективного курса «Основы правового статуса человека и гражданина» (на примере ФГБОУ ВО «Югорский государственный университет»). Legal education at the university. It is concluded that legal literacy is a quality of personality expressed in the totality of legal knowledge and the ability to be guided by them in various spheres of life. Some ways are proposed that contribute to improving the effectiveness of the formation of legal literacy of students of non-legal areas of training through the introduction of the elective course «Fundamentals of the legal status of a person and a citizen» into the curricula (using the example of the Ugra State University).
{"title":"FEATURES OF THE FORMATION OF LEGAL LITERACY OF STUDENTS OF NON-LEGAL AREAS OF PREPARATION IN THE PROCESS OF MASTERING THE DISCIPLINE «FUNDAMENTALS OF THE LEGAL STATUS OF A PERSON AND A CITIZEN OF THE RUSSIAN FEDERATION»","authors":"Е.В. Фролова","doi":"10.37539/230515.2023.22.33.002","DOIUrl":"https://doi.org/10.37539/230515.2023.22.33.002","url":null,"abstract":"В научной статье рассматривается проблема формирования правовой грамотности студентов неюридических направлений подготовки в процессе правового образования в вузе. Сделан вывод о том, что правовая грамотность - это качество личности, выражающееся в совокупности правовых знаний и способности руководствоваться ими в различных сферах жизнедеятельности. Предложены некоторые пути, способствующие повышению эффективности формирования правовой грамотности студентов неюридических направлений подготовки за счет внедрения в учебные планы элективного курса «Основы правового статуса человека и гражданина» (на примере ФГБОУ ВО «Югорский государственный университет»).\u0000 Legal education at the university. It is concluded that legal literacy is a quality of personality expressed in the totality of legal knowledge and the ability to be guided by them in various spheres of life. Some ways are proposed that contribute to improving the effectiveness of the formation of legal literacy of students of non-legal areas of training through the introduction of the elective course «Fundamentals of the legal status of a person and a citizen» into the curricula (using the example of the Ugra State University).","PeriodicalId":37429,"journal":{"name":"Computer Research and Modeling","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89134382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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