Pengaruh Kendali Turbulensi Aliran terhadap Bidang Aliran Di Sekitar Struktur Persegi

Samhuddin; La Ode Ahmad Barata; Nurjannah Yusman

doi:10.55679/pistonjt.v8i1.42

Penulis

Samhuddin Jurusan Teknik Mesin, Universitas Halu Oleo
La Ode Ahmad Barata Jurusan Teknik Mesin, Universitas Halu Oleo
Nurjannah Yusman Jurusan Teknik Mesin, Universitas Musamus, Papua

DOI:

https://doi.org/10.55679/pistonjt.v8i1.42

Kata Kunci:

Pemisah aliran, Gaya-gaya fluida, Tekanan, Deformasi Aliran, Model turbulen k - ε

Abstrak

Karakteristik aliran yang melewati struktur mempengaruhi stabilitas, desain aerodinamika dan respon struktur terhadap pola aliran yang melewatinya. Penelitian ini mengkaji secara numerik efek penggunaan pemecah aliran (splitter plate) terhadap pola kecepatan, tekanan, gaya aerodinamis dan deformasi aliran pada bilangan Reynolds 10⁴. Penelitian ini menggunakan pemecah aliran tipe ganda 2D di sisi hilir dengan model turbulen k-ε menggunakan perangkat lunak ANSYS FLUENT 18.2. Hasil simulasi numerik menunjukkan bahwa penggunaan spliter plate telah merubah pola aliran yang melewati silinder persegi yang ditandai dengan berkurangnya zona negative aliran, pemulihan tekanan, dan penurunan gaya hambat. Pola deformasi aliran berbeda dengan silinder tanpa splitter plate. Data-data numerik juga ditampilkan dalam bentuk kontur aliran untuk memverikasi data grafis yang ditunjukkan pada studi ini. Studi ini juga menunjukkan bahwa penggunaan splitter plate juga menunjukkan sesintifitas grid yang berbeda dengan silinder persegi biasa, sehingga uji validasi-verifikasi sensitifitas grid silinder dengan splitter plat tidak direkomendasikan pada kasus yang serupa.

Unduhan

Data unduhan belum tersedia.

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