Numerical analysis of the flow rig for UWS spray examination in exhaust system-relevant conditions

• Autorzy: Górka Krzysztof , Kaźmierski Bartosz , Kapusta Łukasz Jan

Identyfikatory

DOI

10.19206/CE-141182

• Języki publikacji: EN

Abstrakty

EN

In the present study, a flow rig with optical access intended for spray investigations in exhaust system-relevant conditions was analysed in terms of flow and temperature in the spray area using numerical simulations. The operation of the rig was examined for a wide range of exhaust mass flow rates, temperatures and various forms of UWS (urea-water solution) spray plumes. The locations of the injector and thermocouple were verified. Both conventional and flash-boiling injections were considered to assess the effect of the interaction of sprays with a gas flow. The results showed a highly uniform flow in the visualisation area, with only minor fluctuations near the walls. A similar observation was carried out for the temperature distribution. It was found that the extreme operating conditions caused substantial deformations of the spray plumes. However, the selected injector location allowed us to properly observe the spray formation regardless of the flow conditions. The study showed that the examined test rig enabled reliable spray investigations for a wide range of operating points.

Słowa kluczowe

EN

CFD; spray; injection; crossflow; flow rig

PL

CFD; rozprysk; wtrysk; przepływ krzyżowy

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2021
• Tom: R. 60, nr 3
• Strony: 103--112
• Opis fizyczny: Bibliogr. 20 poz., il. kolor., wykr.

Twórcy

autor

Górka Krzysztof

• Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, Poland

• https://orcid.org/0000-0002-6450-4916

autor

Kaźmierski Bartosz

• Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, Poland

• https://orcid.org/0000-0001-5633-0226

autor

Kapusta Łukasz Jan

• Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, Poland

• https://orcid.org/0000-0001-9233-3643

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).