Aplikasi Metode Beda Hingga Crank-Nicholson Implisit untuk Menentukan Kasus Adveksi-Difusi 2D pada Sebaran Polutan Di Suatu Perairan

Authors

  • Holland Sampera Program Studi Fisika Jurusan Fisika, FMIPA Universitas Tanjungpura
  • . Apriansyah Program Studi Fisika Jurusan Fisika, FMIPA Universitas Tanjungpura

DOI:

https://doi.org/10.26418/pf.v4i2.15851

Abstract

Telah ditentukan pola sebaran konsentrasi polutan pada sungai sintetik dan Sungai Kapuas menggunakan metode beda hingga Crank-Nicholson Implisit. Metode ini digunakan untuk menyelesaikan kasus adveksi-difusi 2D pada sebaran konsentrasi polutan dan membandingkannya dengan metode analitik. Pada sungai sintetik, RMSE yang didapat untuk kasus adveksi-difusi 2D proses sesaat adalah sebesar 8,19 x 10-4 dan 0,11 untuk proses kontinu. Simulasi pola sebaran konsentrasi pada Sungai Kapuas menunjukkan sebaran yang lebih jauh untuk nilai koefisien difusi yang kecil pada saat surut dibandingkan dengan saat pasang.

 

Kata Kunci : Persamaan Adveksi-Difusi, Crank-Nicholson, Sungai Kapuas


References

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Google earth V 7.1.5.1557. (04 April 2015). Sungai Kapuas, Kalimantan Barat. 0°01’10.73†S, 109°20’30.96†T, Ketinggian Mata 3340 meter. CNES/Atrium 2015. http://www.earth.google.com [2 November 2015].

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Published

2016-07-12

Issue

Vol. 4 No. 2 (2016)

Section

Articles

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Date: 24-05-2023

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