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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">izmertech</journal-id><journal-title-group><journal-title xml:lang="ru">Измерительная техника</journal-title><trans-title-group xml:lang="en"><trans-title>Izmeritel`naya Tekhnika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-1025</issn><issn pub-type="epub">2949-5237</issn><publisher><publisher-name>ФГУП "ВНИИФТРИ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32446/0368-1025it.2025-6-56-68</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-2392</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МЕХАНИЧЕСКИЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MECHANICAL MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Моделирование гидродинамических характеристик потока воды в блоке расходомеров с пассивной закруткой потока в трубопроводной системе поверочной установки</article-title><trans-title-group xml:lang="en"><trans-title>Modeling the hydrodynamic characteristics of water flow in a flow meter block with passive flow swirl in the pipeline system of a verification facility</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6706-0679</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щелчков</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shchelchkov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Валентинович Щелчков</p><p>Казань</p></bio><bio xml:lang="en"><p>Alexey V. Shchelchkov</p><p>Kazan</p></bio><email xlink:type="simple">lexa_kzn@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Александров</surname><given-names>Ю. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Alexandrov</surname><given-names>Yu. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Борисович Александров</p><p>Казань</p></bio><bio xml:lang="en"><p>Yuri B. Alexandrov</p><p>Kazan</p></bio><email xlink:type="simple">alexwischen@rambler.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-3246-1237</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Миннуллин</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Minnullin</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Руслан Раисович Миннуллин</p><p>Казань</p></bio><bio xml:lang="en"><p>Ruslan R. Minnullin</p><p>Kazan</p></bio><email xlink:type="simple">rous.06@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7250-3246</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тухватуллин</surname><given-names>А. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Tukhvatullin</surname><given-names>A. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Альберт Рашидович Тухватуллин</p><p>Казань</p></bio><bio xml:lang="en"><p>Albert R. Tukhvatullin</p><p>Kazan</p></bio><email xlink:type="simple">vniir-etalon@bk.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-6487-9315</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корнеев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Korneev</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Александрович Корнеев</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Andrey A. Korneev</p><p>St. Petersburg</p></bio><email xlink:type="simple">yak02@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Казанский национальный исследовательский технический университет им. А. Н. Туполева – КАИ; Всероссийский научно-исследовательский институт расходометрии – филиал Всероссийского научно-исследовательского института метрологии им. Д. И. Менделеева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan National Research Technical University named after A. N. Tupolev – KAI; VNIIR – Affiliated branch of the D. I. Mendeleyev Institute for Metrology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Казанский национальный исследовательский технический университет им. А. Н. Туполева – КАИ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan National Research Technical University named after A. N. Tupolev – KAI</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Всероссийский научно-исследовательский институт расходометрии – филиал Всероссийского научно-исследовательского института метрологии им. Д. И. Менделеева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>VNIIR – Affiliated branch of the D. I. Mendeleyev Institute for Metrology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ООО «АКТЕК»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russia Limited Liability Company “AKTEK”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>13</day><month>12</month><year>2025</year></pub-date><volume>74</volume><issue>6</issue><fpage>56</fpage><lpage>68</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">ФГУП "ВНИИФТРИ"</copyright-holder><copyright-holder xml:lang="en">ФГУП "ВНИИФТРИ"</copyright-holder><license xlink:href="https://www.izmt.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.izmt.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.izmt.ru/jour/article/view/2392">https://www.izmt.ru/jour/article/view/2392</self-uri><abstract><p>Описаны недостатки геометрии проточной части типовой напорной трубопроводной системы и компоновки блока расходомеров из состава поверочной установки. Важной проблемой при течении потока воды по проточной части сложной геометрической формы напорной трубопроводной системы является отрыв потока на стенках, возникновение кавитации и вибраций трубопроводной системы. Предложен подход, исключающий возникновение кавитации в потоке воды и вибраций стенок участков сложной геометрической формы напорной трубопроводной системы. Это достигается в результате формирования вихревой структуры потока воды в ресиверах блока расходомеров с пассивной закруткой потока. Построены геометрическиемодели проточных частей напорных трубопроводных системи блоков расходомеров (типового и перспективного с пассивной закруткой потока). Сгенерированы адаптированные к расчётам сеточные модели высокого разрешения со сгущениемв пристеночных областях. Определеныбезразмерные координаты (локальные числаРейнольдса в ячейках), которыеможно использовать для расчётовмоделей турбулентности, основанных на осреднении уравнений НавьеСтокса по числуРейнольдса. Верификация результатов численных прогнозов выполнена по результатамэкспериментального исследования потерь давления в блоке расходомеров типовой трубопроводной системы. Выполнено численное моделирование потерь давления в блоке расходомеров с пассивной закруткой потока перспективной трубопроводной системы, по результатам которого данная система спроектирована, создана и экспериментально исследована. Оценены качество турбулентного профиля скорости потока воды в выходном поперечном сечении перспективной трубопроводной системы и влияние парной вихревой структуры в напорном трубопроводе на структуру потока и формирование профиля скорости в измерительной линии. Обоснована гидравлическая эффективность блока расходомеров с пассивной закруткой потока. Реализовано напорное однофазное (безкавитационное) течение потока воды. Представленный подход и полученные результаты можно использовать при разработке новых поверочных установок и модернизации существующих.</p></abstract><trans-abstract xml:lang="en"><p>The article describes the defi ciencies in the fl ow geometry of a typical pressure pipeline system and the layout of a fl owmeter unit used in a verifi cation rig. A signifi cant problem with water fl ow through a complex fl ow section of a pressure pipeline system is fl ow separation at the walls, leading to cavitation and vibrations within the pipeline system. An approach is proposed that eliminates cavitation in the water fl ow and wall vibrations in complex sections of a pressure pipeline system. This is achieved by creating a vortex structure in the water fl ow in the receivers of a fl owmeter unit with passive fl ow swirl. Geometric models of the fl ow sections of pressure pipeline systems and fl owmeter units (typical and prospective with passive fl ow swirl) are constructed. High-resolution grid models with denser near-wall regions adapted for calculations are generated. Dimensionless coordinates (local Reynolds numbers in cells) are determined, which can be used to calculate turbulence models based on averaging the Navier-Stokes equations over the Reynolds number. The results of numerical predictions are verifi ed based on the results of an experimental study of pressure losses in a fl ow meter unit of a typical pipeline system. Numerical modeling of pressure losses in a fl ow meter unit with passive fl ow swirl in a prospective pipeline system was performed, based on which this system was designed, created, and experimentally studied. The quality of the turbulent water fl ow velocity profi le in the outlet cross-section of the prospective pipeline system and the effect of the paired vortex structure in the pressure pipeline on the fl ow structure and the formation of the velocity profi le in the measuring line are assessed. The hydraulic effi ciency of the fl ow meter unit with passive fl ow swirl is substantiated. A pressure single-phase (cavitation-free) water fl ow is implemented. The presented approach and the obtained results can be used in the development of new verifi cation rigs and the modernization of existing ones. Keywords: verifi cation rig, pressure fl ow, fl ow meter block, passive fl ow swirl, velocity profi le, hydraulic effi ciency.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>поверочная установка</kwd><kwd>напорное течение</kwd><kwd>блок расходомеров</kwd><kwd>пассивная закрутка потока</kwd><kwd>профиль скорости</kwd><kwd>гидравлическая эффективность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>verifi cation rig</kwd><kwd>pressure fl ow</kwd><kwd>fl ow meter block</kwd><kwd>passive fl ow swirl</kwd><kwd>velocity profi le</kwd><kwd>hydraulic effi ciency</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Menter F. R., Kuntz M., Langtry R. Ten years of industrial experience with the SST turbulence model. In Turbulence, Heat and Mass Transfer 4. Ed. K. Hajalic, Y. Nogano, M. Tummers. 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