The hydrodynamic coefficients for an oscillating 2D rectangular box using weakly compressible smoothed particle hydrodynamics (WCSPH) method

An implementation of the weakly compressible smoothed particle hydrodynamics (WCSPH) method is demonstrated to determine the hydrodynamics coefficients through radiation problem of an oscillating 2D rectangular box. Three possible modes of motion namely swaying, heaving, and rolling are carried out...

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Main Author:	Ramli, Muhammad Zahir
Format:	Article
Language:	English English English
Published:	Kulliyyah of Engineering, International Islamic University Malaysia 2018
Subjects:	VM Naval architecture. Shipbuilding. Marine engineering
Online Access:	http://irep.iium.edu.my/67721/ http://irep.iium.edu.my/67721/ http://irep.iium.edu.my/67721/1/67721_The%20hydrodynamic%20coefficients%20for%20an%20oscillating.pdf http://irep.iium.edu.my/67721/7/67721_The%20hydrodynamic%20coefficients%20for%20an%20oscillating_SCOPUS.pdf http://irep.iium.edu.my/67721/13/67721%20THE%20HYDRODYNAMIC%20COEFFICIENTS%20FOR%20AN%20OSCILLATING%20WOS.pdf

id	iium-67721
recordtype	eprints
spelling	iium-677212019-01-27T07:44:28Z http://irep.iium.edu.my/67721/ The hydrodynamic coefficients for an oscillating 2D rectangular box using weakly compressible smoothed particle hydrodynamics (WCSPH) method Ramli, Muhammad Zahir VM Naval architecture. Shipbuilding. Marine engineering An implementation of the weakly compressible smoothed particle hydrodynamics (WCSPH) method is demonstrated to determine the hydrodynamics coefficients through radiation problem of an oscillating 2D rectangular box. Three possible modes of motion namely swaying, heaving, and rolling are carried out to establish the influence of oscillating motions in predicting the added mass and damping. Both solid boundary and fluid flow are modelled by WCSPH and validated by the potential flow and experimental results. Discrepancies observed at lower frequencies are further investigated using different particle resolutions, different time steps, and extending the domain with longer runtime to demonstrate the performance of WCSPH. Finally, flow separation and vortices are discussed and compared with experimental results. ******************************************************** Bagi fenomena yang melibatkan radiasi dalam air, segiempat kotak 2D diosilasikan dengan menggunakan simulasi WCSPH untuk memperoleh pekali hidrodinamik. Mod osilasi terbahagi kepada 3 iaitu sway, heave dan roll. Osilasi dengan mengguna pakai kotak akan mempengaruhi pergerakan air dalam menentukan nilai penambahan jisim dan rendaman. Keseluruhan domain air dan sempadan telah dimodelkan dengan menggunakan WCSPH. Semua model tersebut kemudiannya akan dibandingkan melalui keputusan eksperimen dan teori. Jika keputusan melalui kaedah WCSPH ini berbeza, terutama pada frekuensi rendah, penyelidikan lanjut akan dilakukan dengan menggunakan zarah resolusi yang berbeza, langkah masa yang berbeza dan menambah masa domain ujikaji bagi menilai keputusan WCSPH. Akhirnya, kriteria aliran dan kadar pusaran yang terhasil di sekeliling kotak akan dibincang dan dibandingkan bersama keputusan eksperimen. Kulliyyah of Engineering, International Islamic University Malaysia 2018-12-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/67721/1/67721_The%20hydrodynamic%20coefficients%20for%20an%20oscillating.pdf application/pdf en http://irep.iium.edu.my/67721/7/67721_The%20hydrodynamic%20coefficients%20for%20an%20oscillating_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/67721/13/67721%20THE%20HYDRODYNAMIC%20COEFFICIENTS%20FOR%20AN%20OSCILLATING%20WOS.pdf Ramli, Muhammad Zahir (2018) The hydrodynamic coefficients for an oscillating 2D rectangular box using weakly compressible smoothed particle hydrodynamics (WCSPH) method. IIUM Engineering Journal, 19 (2). pp. 172-181. ISSN 1511-788X E-ISSN 2289-7860 http://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/889
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	VM Naval architecture. Shipbuilding. Marine engineering
spellingShingle	VM Naval architecture. Shipbuilding. Marine engineering Ramli, Muhammad Zahir The hydrodynamic coefficients for an oscillating 2D rectangular box using weakly compressible smoothed particle hydrodynamics (WCSPH) method
description	An implementation of the weakly compressible smoothed particle hydrodynamics (WCSPH) method is demonstrated to determine the hydrodynamics coefficients through radiation problem of an oscillating 2D rectangular box. Three possible modes of motion namely swaying, heaving, and rolling are carried out to establish the influence of oscillating motions in predicting the added mass and damping. Both solid boundary and fluid flow are modelled by WCSPH and validated by the potential flow and experimental results. Discrepancies observed at lower frequencies are further investigated using different particle resolutions, different time steps, and extending the domain with longer runtime to demonstrate the performance of WCSPH. Finally, flow separation and vortices are discussed and compared with experimental results. ******************************************************** Bagi fenomena yang melibatkan radiasi dalam air, segiempat kotak 2D diosilasikan dengan menggunakan simulasi WCSPH untuk memperoleh pekali hidrodinamik. Mod osilasi terbahagi kepada 3 iaitu sway, heave dan roll. Osilasi dengan mengguna pakai kotak akan mempengaruhi pergerakan air dalam menentukan nilai penambahan jisim dan rendaman. Keseluruhan domain air dan sempadan telah dimodelkan dengan menggunakan WCSPH. Semua model tersebut kemudiannya akan dibandingkan melalui keputusan eksperimen dan teori. Jika keputusan melalui kaedah WCSPH ini berbeza, terutama pada frekuensi rendah, penyelidikan lanjut akan dilakukan dengan menggunakan zarah resolusi yang berbeza, langkah masa yang berbeza dan menambah masa domain ujikaji bagi menilai keputusan WCSPH. Akhirnya, kriteria aliran dan kadar pusaran yang terhasil di sekeliling kotak akan dibincang dan dibandingkan bersama keputusan eksperimen.
format	Article
author	Ramli, Muhammad Zahir
author_facet	Ramli, Muhammad Zahir
author_sort	Ramli, Muhammad Zahir
title	The hydrodynamic coefficients for an oscillating 2D rectangular box using weakly compressible smoothed particle hydrodynamics (WCSPH) method
title_short	The hydrodynamic coefficients for an oscillating 2D rectangular box using weakly compressible smoothed particle hydrodynamics (WCSPH) method
title_full	The hydrodynamic coefficients for an oscillating 2D rectangular box using weakly compressible smoothed particle hydrodynamics (WCSPH) method
title_fullStr	The hydrodynamic coefficients for an oscillating 2D rectangular box using weakly compressible smoothed particle hydrodynamics (WCSPH) method
title_full_unstemmed	The hydrodynamic coefficients for an oscillating 2D rectangular box using weakly compressible smoothed particle hydrodynamics (WCSPH) method
title_sort	hydrodynamic coefficients for an oscillating 2d rectangular box using weakly compressible smoothed particle hydrodynamics (wcsph) method
publisher	Kulliyyah of Engineering, International Islamic University Malaysia
publishDate	2018
url	http://irep.iium.edu.my/67721/ http://irep.iium.edu.my/67721/ http://irep.iium.edu.my/67721/1/67721_The%20hydrodynamic%20coefficients%20for%20an%20oscillating.pdf http://irep.iium.edu.my/67721/7/67721_The%20hydrodynamic%20coefficients%20for%20an%20oscillating_SCOPUS.pdf http://irep.iium.edu.my/67721/13/67721%20THE%20HYDRODYNAMIC%20COEFFICIENTS%20FOR%20AN%20OSCILLATING%20WOS.pdf
first_indexed	2023-09-18T21:36:08Z
last_indexed	2023-09-18T21:36:08Z
_version_	1777412832915095552

The hydrodynamic coefficients for an oscillating 2D rectangular box using weakly compressible smoothed particle hydrodynamics (WCSPH) method

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