Coherent structures in an impinging jet with swirl and combustion

R. V. Tolstoguzov, D. K. Sharaborin

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

Аннотация

The present paper reports on an experimental study of flow structure and coherent structures in impinging jets with strong swirl and combustion of lean propane/air mixture by a combined application of OH, HCHO PLIF and PIV. The equivalence ratio of the mixture was 0.7, the Reynolds number of the jet was 5000. Thru to the use of modern panoramic optical methods PIV, OH and HCHO PLIF (these methods are based on anemometry on particle images and registration of plane laser-induced fluorescence of formaldehyde, respectively), the velocity distributions and the position of the flame front in the axial section of the flow were measured. For the flame, a significant increase in the fluorescence intensity of formaldehyde and other organic compounds were detected upon excitation at a wavelength of 355 nm in the near-wall region at a distance of three calibers from the nozzle to the surface. To reveal coherent structures, the experimental data were processed by proper orthogonal decomposition (POD). It is expected that this effect is caused by the cooling of the combustion products due to heat exchange with a surface, lowering the temperature inside the recirculation zone and reducing the completeness of fuel combustion.

Язык оригиналаанглийский
Название основной публикацииHeat and Mass Transfer and Hydrodynamics in Swirling Flows, HMTHSF 2019
Подзаголовок основной публикацииProceedings of the 7th International Conference
РедакторыAlexander I. Leontiev, Yuriy A. Kuzma-Kichta, Shota A. Piralishvili, Sergey V. Veretennikov, Oleg A. Evdokimov
ИздательAmerican Institute of Physics Inc.
ISBN (электронное издание)9780735419629
DOI
СостояниеОпубликовано - 31 мар 2020
Событие7th International Conference on Heat and Mass Transfer and Hydrodynamics in Swirling Flows, HMTHSF 2019 - Rybinsk, Российская Федерация
Продолжительность: 16 окт 201918 окт 2019

Серия публикаций

НазваниеAIP Conference Proceedings
Том2211
ISSN (печатное издание)0094-243X
ISSN (электронное издание)1551-7616

Конференция

Конференция7th International Conference on Heat and Mass Transfer and Hydrodynamics in Swirling Flows, HMTHSF 2019
СтранаРоссийская Федерация
ГородRybinsk
Период16.10.201918.10.2019

Fingerprint Подробные сведения о темах исследования «Coherent structures in an impinging jet with swirl and combustion». Вместе они формируют уникальный семантический отпечаток (fingerprint).

Цитировать