Estimasi Parameter Aerodinamika Model Roket Menggunakan Computational Fluid Dynamics
Submission Date: 2020-08-10 12:12:59
Accepted Date: 2021-01-28 19:23:54
Abstract
Dalam dunia militer, roket adalah sebuah senjata yang dapat dikendalikan secara langsung atau otomatis untuk mengenai targetnya. Untuk memastikan roket tersebut mampu bergerak mengenai target yang telah ditentukan, roket harus mampu dikendalikan untuk selalu mendekati target yang diatur oleh aturan pengendalian dan pemanduan. Pengendalian dan pemanduan sebuah roket membutuhkan sebuah model matematika dari roket tersebut. Semakin akurat model roket dengan keadaan nyata, maka akan semakin akurat pula pengendalian yang akan dicapai. Agar model matematika roket akurat diperlukan parameter-parameter roket untuk membuat model matematika roket. Terdapat parameter terukur yang diperoleh dari hasil pengukuran dimensi fisik roket. Dan terdapat parameter tidak terukur yang diperoleh melalui estimasi. Salah satu parameter yang diperoleh melalui estimasi adalah parameter aerodinamika roket. Agar didapatkan model yang baik parameter terukur dan parameter tidak terukur perlu didapatkan sehingga parameter aerodinamika roket perlu untuk diestimasi. Pada penelitian ini dilakukan estimasi parameter aerodinamika roket. Estimasi dilakukan dengan metode CFD. Dengan parameter hasil estimasi model matematika lengkap roket dapat diperoleh.
Keywords
Roket; Computational Fluid Dynamics; Koefisien Aerodinamik; Reynold-Average Navier-Stokes; Estimasi Parameter.
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