Pengaruh Pasif Kontrol terhadap Koefisien Hambat
Keywords:
Pasif Kontrol, Silinder Sirkular, Simulasi Numerik, Persamaan Navier-StokesAbstract
Salah satu cara untuk mengurangi koefisien hambat adalah dengan menambahkan obyek kecil yang dinamakan pasif kontrol. Tiga pasif kontrol, terdiri satu pasif kontrol berbentuk silinder tipe-I diletakkan di depan dan dua silinder sirkular diletakkan di belakang silinder sirkular utama. Diameter silinder sirkular utama adalah D dan tiga silinder pasif kontrol berdiameter . Rasio jarak antara pasif kontrol di depan dengan silinder sirkular utama adalah dan dua pasif kontrol di belakang silinder sirkular yaitu dan besar sudut a= 15°, 30°, 45° dan 60°. Bilangan Reynolds yang digunakan adalah Re = 1000. Konfigurasi yang tepat untuk menurunkan koefisien hambat terjadi ketika rasio jarak dan dengan . Koefisien hambat yang diterima silinder sirkular dapat berkurang hingga 42.98%
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References
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