Measurement and calculating of supersonic ejectors

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dc.contributor.authorVojta, Lukáš
dc.contributor.authorDvořák, Václav
dc.date.accessioned2020-01-10T08:15:03Z
dc.date.available2020-01-10T08:15:03Z
dc.date.issued2019
dc.description.abstractThis paper deals with numerical and experimental investigation of the flow in an air to air supersonic ejector with constant area mixing chamber. The mixing chamber of previous ejector was completely repaired since a scratch from previous turning had been found. As a result, a new geometry of the mixing chamber was created. Several measurements were conducted with different nozzle position (NP): 1 mm, 2 mm and 3 mm. Furthermore, for a given NP, two different values of stagnation pressure of 200 kPa and 300 kPa at the primary air inlet were investigated in more detail. All numerical simulations were performed in the ANSYS Fluent software. It was found that the influence of the position of the nozzle influences the ejection factor only to a certain extent. For the other parameters of the ejector is also a need to find the optimum position of the nozzle. Repair of the mixing chamber has contributed to reduce the pressure difference at the wall of the mixing chamber.cs
dc.format.extent7 strancs
dc.identifier.doi10.1051/epjconf/201921302097
dc.identifier.urihttps://dspace.tul.cz/handle/15240/154340
dc.identifier.urihttps://www.epj-conferences.org/articles/epjconf/pdf/2019/18/epjconf_efm18_02097.pdf
dc.language.isocscs
dc.publisherE D P SCIENCES, 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE
dc.relation.ispartofEXPERIMENTAL FLUID MECHANICS 2018 (EFM18)
dc.relation.ispartofseriesEPJ Web of Conferences
dc.titleMeasurement and calculating of supersonic ejectorscs
dc.typeProceedings Paper
local.article.numberUNSP 02097
local.event.edate2018-11-16
local.event.locationPlanetarium & Stefaniks Observ, Prague, CZECH REPUBLIC
local.event.sdate2018-11-13
local.event.title13th International Conference on Experimental Fluid Mechanics (EFM)
local.identifier.publikace6656
local.relation.volume213
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