{"dcterms:modified":"2023-12-08","dcterms:creator":"DaRUS","@type":"ore:ResourceMap","@id":"https://nfldevdataverse2.rus.uni-stuttgart.de/api/datasets/export?exporter=OAI_ORE&persistentId=https://doi.org/10.18419/darus-1790","ore:describes":{"publication":{"publicationCitation":"Ruberto, S., Reutzsch, J. and Weigand, B., \"Experimental investigation of the evaporation rate of supercooled water droplets at constant temperature and varying relative humidity\", International Communications in Heat and Mass Transfer 77, 190-194, October 2016","publicationIDType":"doi","publicationIDNumber":"10.1016/j.icheatmasstransfer.2016.08.005","publicationURL":"https://doi.org/10.1016/j.icheatmasstransfer.2016.08.005"},"citation:datasetContact":{"citation:datasetContactName":"Steigerwald, Jonas","citation:datasetContactAffiliation":"Universität Stuttgart"},"author":[{"citation:authorName":"Ruberto, Stefano","citation:authorAffiliation":"Universität Stuttgart"},{"citation:authorName":"Reutzsch, Jonathan","citation:authorAffiliation":"Universität Stuttgart","authorIdentifierScheme":"ORCID","authorIdentifier":"0000-0002-7486-2776"}],"citation:dsDescription":{"citation:dsDescriptionValue":"Die Daten liefern einen Auszug aus einer im Teilprojekt B1 durchgeführten experimentellen Untersuchung der Verdampfung von unterkühlten, levitierten Wassertropfen bei unterschiedlichen Temperaturen und relativen Feuchtegehalten und einer numerischen Simulation zur Verdunstung von unterkühlten, levitierten Tropfen. Die numerischen Rechnungen wurden mit dem Mehrphasen-Code FS3D durchgeführt, der am Institut für Thermodynamik der Luft- und Raumfahrt an der Universität Stuttgart entwickelt wurde. Beide Datensätze eignen sich zur Validierung numerischer Codes oder Experimente. Weitere Informationen zum Experiment finden sich in: doi: 10.1016/j.icheatmasstransfer.2016.08.005\r\n
Beschreibung des experimentellen Setups\r\n
Im Experiment werden einzelne Wassertropfen in einer Beobachtungskammer mit einem Laser (λ=532nm) optisch levitiert. Die eingestellten Kammertemperaturen sind T=-5°C; -10°C; -20°C bei verschiedenen relativen Feuchten. Die Ordnernamen enthalten die eingestellte Temperatur und relative Feuchte, z.B. „ExpData_Temp_-10_RH_47“. Die Aufzeichnung mit der Zeilenkamera (2048 pixel) dauert rund 12 s, was 60.000 Zeilen entspricht. Die Messdaten und Ergebnisse sind für jede Einzelmessung jeweils in einer Matlab Datei gespeichert (siehe Process Metadata).\r\nDer Ordner Position enthält die Daten Messdaten des Oszilloskops zu jeder Einzelmessung. Kanal 1 (CH1) entspricht der Position des Tropfens in Volt. Kanal 2 (CH2) enthält die Intensität des Streulichts unter 90° in Volt. CH_time ist die entsprechende Zeitachse des Oszilloskops.\r\n
Beschreibung des numerischen Setups\r\n
Die Simulation wird auf einem kartesischen, dreidimensionalen Gitter durchgeführt. Die Auflösung des Gitters beträgt 512 x 256 x 256 Zellen. Auf der linken Seite befindet sich ein Einströmrand, auf der rechten Seite ein Ausströmrand mit einer Dämpfungszone und an den lateralen Seiten werden freeslip-Bedingungen gesetzt. Simuliert wird ein Wassertropfen mit einem Durchmesser von 50 μm, welcher in einer Stickstoffatmosphäre levitiert ist. Die Umgebungstemperatur beträgt 268,15 K, der Tropfen wurde bei der Kühlgrenztemperatur 263,15 K initialisiert. Der Umgebungsdruck beträgt 0,965 bar. Der Tropfen wird konstant mit trockenem Stickstoff mit einer Geschwindigkeit von 0,5 cm/s angeströmt. Die Umgebung wird ebenfalls mit einer Luftfeuchte von 0% initialisiert."},"title":"Data for: Experimental investigation of the evaporation rate of supercooled water droplets at constant temperature and varying relative humidity","subject":["Engineering","Physics"],"dateOfDeposit":"2021-04-12","citation:depositor":"Steigerwald, Jonas","process:processMethodsPar":[{"process:processMethodsParName":"abstaende_grad: Mittlerer Abstand zw. zwei Maxima in Grad zum Zeitpunkt t"},{"process:processMethodsParName":"angle: Einbauwinkel der Kamera"},{"process:processMethodsParName":"beta: Ermittelte Verdampfungsrate"},{"process:processMethodsParName":"D: Berechneter Durchmesser zum Zeitpunkt t"},{"process:processMethodsParName":"D0: Extrapolierter Anfangsdurchmesser zum Zeitpunkt t=0s"},{"process:processMethodsParName":"D_D0: Dimensionsloser Durchmesser D/D0 zum Zeitpunkt t"},{"process:processMethodsParName":"ende_corr: Ende des Korrelationsfenster zur Bestimmung von β"},{"process:processMethodsParName":"filterWindowSize: Fensterbreite für Filter (filtfilt)"},{"process:processMethodsParName":"ImageMatrix: Rohdaten der Kamera"},{"process:processMethodsParName":"n: Berechneter Brechungsindex, siehe Veröffentlichung"},{"process:processMethodsParName":"p: Umgebungsdruck","process:processMethodsParUnit":"Pa"},{"process:processMethodsParName":"phi_inf: Relative Feuchte"},{"process:processMethodsParName":"start_corr: Beginn des Korrelationsfenster zur Bestimmung von β"},{"process:processMethodsParName":"t: Zeitpunkt zu dem die Kamera eine Zeile aufgenommen hat"},{"process:processMethodsParName":"t_D0: Zeit t geteilt durch Anfangsdurchmesser im Quadrat, t/D02"},{"process:processMethodsParName":"T_inf: Umgebungstemperatur","process:processMethodsParUnit":"K"},{"process:processMethodsParName":"T_wetbulb: Berechnete Kühlgrenztemperatur","process:processMethodsParUnit":"K"}],"process:processMethods":{"process:processMethodsDescription":"Die experimentellen Messdaten/Ergebnisse sind für jede Einzelmessung jeweils in einer Matlab Datei gespeichert und enthalten die unter Method Parameters aufgelisteten Variablen."},"@id":"https://doi.org/10.18419/darus-1790","@type":["ore:Aggregation","schema:Dataset"],"schema:version":"1.0","schema:name":"Data for: Experimental investigation of the evaporation rate of supercooled water droplets at constant temperature and varying relative humidity","schema:dateModified":"Thu Apr 15 11:47:33 CEST 2021","schema:datePublished":"2021-04-15","schema:license":"http://creativecommons.org/licenses/by/4.0","dvcore:fileTermsOfAccess":{"dvcore:termsOfAccess":"Please request the access to the data set via e-mail (see Contact button).","dvcore:fileRequestAccess":true},"schema:includedInDataCatalog":"DaRUS","schema:isPartOf":{"schema:name":"Subarea B1","@id":"https://nfldevdataverse2.rus.uni-stuttgart.de/dataverse/itlr_trr75_TP-B1","schema:description":"Investigation of the behavior of supercooled droplets concerning evaporation, condensation and freezing at different boundary conditions","schema:isPartOf":{"schema:name":"Collaborative Research Center Transregio 75 (SFB-TRR 75)","@id":"https://nfldevdataverse2.rus.uni-stuttgart.de/dataverse/SFB-TRR75","schema:description":"The fundamental understanding of droplet dynamics is the critical prerequisite to the prediction of natural processes and the optimization of technical systems. 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