17 Kasım 2023 Konferans bildirisi Açık Erişim

Kaçar, Furkan Sencer; Kırca, V. Ş. Özgür; Kohandel Gargari, Mehrnoush

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        "name": "Ka\u00e7ar, Furkan Sencer", 
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        "name": "K\u0131rca, V. \u015e. \u00d6zg\u00fcr", 
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    "description": "<p>Bu &ccedil;al\u0131\u015fman\u0131n amac\u0131, tedrici de\u011fi\u015fken ak\u0131mlar\u0131n alt\u0131nda olu\u015fan s\u0131n\u0131r tabakalar\u0131n\u0131n hidrodinamik karakteristi\u011finin Reynolds Ortalamal\u0131 Navier-Stokes denklemleri kullanan tek boyutlu d&uuml;\u015fey (1DV) bir say\u0131sal model ile incelenmesidir. Reynolds Ortalamal\u0131 Navier-Stokes denkleminin d&uuml;\u015fey do\u011frultuda yatay bile\u015fenini &ccedil;&ouml;zmek i&ccedil;in, Fuhrman vd. (2013) taraf\u0131ndan Wilcox&rsquo;un k-&omega; t&uuml;rb&uuml;lans modeli (2006, 2008) &uuml;zerinden geli\u015ftirilen ak\u0131\u015f &ccedil;&ouml;z&uuml;c&uuml;s&uuml; kullan\u0131lm\u0131\u015ft\u0131r. Yap\u0131lan n&uuml;merik &ccedil;al\u0131\u015fmada, Kohandel Gargari vd. (2021) deneylerindeki hidrolik p&uuml;r&uuml;zs&uuml;z cidar &uuml;zerindeki farkl\u0131 karars\u0131zl\u0131k derecelerine sahip &uuml;&ccedil; ak\u0131m durumu belirtilen ak\u0131\u015f &ccedil;&ouml;z&uuml;c&uuml;s&uuml; kullan\u0131larak modellenmi\u015ftir. Deneyler s\u0131ras\u0131nda &ouml;l&ccedil;&uuml;len bas\u0131n&ccedil; gradyanlar\u0131n\u0131n zamana ba\u011fl\u0131 de\u011fi\u015fimi, modelde maksimum h\u0131z i&ccedil;in girdi parametresi olarak kullan\u0131lm\u0131\u015ft\u0131r. Tedrici de\u011fi\u015fken ak\u0131m\u0131n zamana ba\u011fl\u0131 h\u0131z, kayma gerilmesi ve t&uuml;rb&uuml;lans kinetik enerjisi profilleri deney sonu&ccedil;lar\u0131yla kar\u015f\u0131la\u015ft\u0131r\u0131lm\u0131\u015ft\u0131r. Model ve deneysel veri aras\u0131nda tam bir uyum yakaland\u0131\u011f\u0131 g&ouml;r&uuml;\u015fm&uuml;\u015ft&uuml;r. Ayr\u0131ca, t&uuml;rb&uuml;lans kayma gerilmesinin ve t&uuml;rb&uuml;lans kinetik enerjisinin kesitsel ortalamalar\u0131n\u0131n maksimum h\u0131z ile aras\u0131ndaki histerik ili\u015fkiyi g&ouml;steren grafikler bu &ccedil;al\u0131\u015fmada sunulmu\u015ftur.</p>", 
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