Analysis of Separated Flow over Blocked Surface

Abstract

In this study, the separated flow over flat and blocked surfaces was investigated experimentally. Velocity and turbulence intensity measurements were carried out by a constanttemperature hot wire anemometer and static pressure measurements by a micro-manometer. The flow separations and reattachments were occurred before the first block, on the first block, between blocks and after the last block, and the presence of the blocks significantly increased the turbulent intensity

Keywords

• Blocked surface, Separated flow, Turbulent intensity

Bloklu Yüzey Üzerinde Ayrılmış Akışın İncelenmesi

Abstract

Bu çalışmada; düz ve bloklu yüzeyler üzerinde ayrılmış akış deneysel olarak incelenmiştir. Hız ve türbülans yoğunlukları ölçümleri sabit sıcaklıklı bir kızgın tel anemometresi ile yapılırken statik basınç ölçümleri bir mikro manometre ile yapılmıştır. İlk bloktan önceki yüzeyde, ilk bloğun üstünde, bloklar arasında ve son bloğun arkasındaki yüzeyde ayrılma ve yeniden birleşmeler oluşmuş ve blokların varlığı türbülans yoğunluğunu önemli derecede arttırmıştır

Keywords

• Bloklu yüzey, Ayrılmış akış, Türbülans yoğunluğu

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17. Makale 11.07.2012 tarihinde alınmış, 02.11.2012 tarihinde düzeltilmiş, 09.11.2012 tarihinde kabul edilmiştir.