PENGARUH PENAMBAHAN VARIASI GEOMETRI STERN FLAP TERHADAP NILAI HAMBATAN PADA KAPAL PATROLI PERIKANAN

Authors

  • Rosiana Dewi Departemen S1 Teknik Perkapalan Universitas Diponegoro
  • Untung Budiarto Departemen Teknik Perkapalan Universitas Diponegoro
  • Ari Wibawa Budi Santosa Departemen Teknik Perkapalan Universitas Diponegoro
  • Eko Sasmito Hadi Departemen Teknik Perkapalan Universitas Diponegoro
  • Parlindungan Manik Departemen Teknik Perkapalan Universitas Diponegoro
  • Ocid Mursid Departemen Teknik Perkapalan Universitas Diponegoro

DOI:

https://doi.org/10.33556/jstm.v22i1.296

Abstract

Optimalisasi performa hidrodinamika kapal dengan mereduksi hambatan kapal patroli planing hull berkecepatan tinggi merupakan salah satu upaya pencegahan peningkatan khasus illegal fishing, dan instalasi stern flap merupakan upaya sederhana dalam mereduksi nilai hambatan. Menurut sejarah penelitian terdahulu, dibutuhkan studi lebih lanjut dalam pengeksplorasian ragam geometri stern flap. Pada penelitian ini dilakukan analisis pengaruh variasi geometri stern flap untuk mengetahui nilai hambatan dari kapal patroli perikanan dengan pendekatan numerikal CFD. Komputasi diselesaikan dengan persamaan Reynolds-Averaged Navier Stokes (RANS) serta teknik solusi Finite Volume Method (FVM) pada perairan tenang menggunakan model turbulensi k-ε dan model fisika fluida eulerian multiphase yaitu Volume of Fluid (VOF) yang terdiri dari fasa air dan fasa udara untuk merepresentasikan free surface. Meshing geometri menggunakan metode overset mesh dengan konsep donor-acceptor cells. Penelitian dilakukan pada 5 kondisi Froude number dan 9 buah model stern flap. Diperoleh pengurangan nilai hambatan total tertinggi yaitu -26,07% pada Fr 1,00, sedangkan penambahan nilai hambatan tertinggi yaitu 31,71% pada Fr 1,33. Terdapat 2 variasi bentuk stern flap yang mampu mereduksi nilai hambatan pada seluruh nilai Froude number.

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Published

2021-09-28

Issue

Vol. 22 No. 1 (2021): September

Section

JURNAL SAINS DAN TEKNOLOGI MARITIM

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