Düzenli Dalgalar Üreten Bir Sayısal Dalga Tankının SPH Yöntemi ile Modellenmesi

Yıl 2019, Cilt: 24 Sayı: 2, 551 - 570, 30.08.2019

Murat Özbulut

https://doi.org/10.17482/uumfd.509229

Cited By: 1

Öz

Dalga
üretici tanklar tarafından üretilen dalga sistemlerine, açık deniz yapıları
(petrol çıkarma ve sismik araştırma platformlarının tasarımı) üzerine gelen
yüklerin belirlenmesi, kıyı mühendisliği uygulamaları (liman tasarımı ve kıyı
dalgalarının incelenmesi), gemi hareketlerinin analizleri ve yeni nesil dalga
enerjisi çevirici sistemlerin tasarlanması gibi pek çok mühendislik alanında
ihtiyaç duyulmaktadır. Bu alanlarla sınırlı olmamakla birlikte örnek olarak
sözü edilen mühendislik problemlerinin sayısal analizlerini
gerçekleştirebilecek kararlı ve gerçekçi bir sayısal hesaplama algoritması
oluşturulması bu çalışmanın temel hedefidir. Böylece tasarım aşamasında ihtiyaç
duyulan problem parametrelerinin hesaplamalı olarak elde edebilmesi ve gelecek
araştırma-geliştirme çalışmalarına girdi sağlayacak bir altyapı oluşturulması
amaçlanmaktadır. Bu çalışmada, belirtilen mühendislik problemlerinin çözümüne
özgün bir katkı sunmak için parçacık temelli, hareketin Lagrange denklemleri
aracılığıyla tanımlanmasına dayanan ve ağdan bağımsız bir yöntem olan
İnterpolasyonlu Parçacık Hidrodinamiği (Smoothed Particle Hydrodynamics, SPH)
olarak Türkçe’ye çevirebileceğimiz sayısal yaklaşım ile çözümlemeler
yapılmıştır. Elde edilen sayısal sonuçlar birim dalga boyuna düşen toplam dalga
enerjisi ve beklenen teorik dalga karakteristikleri ile karşılaştırılmıştır. Bu
karşılaştırmalar ışığında, simulasyon sonuçlarının teorik verilerle yüksek
doğruluk ve hassasiyette uyumlu olduğu gözlemlenmiştir.

Anahtar Kelimeler

Sayısal Dalga Üretici Tanklar, Dalga Enerjisi, Düzenli Dalga, Serbest Su Yüzeyi Hidrodinamiği, Parçacık Yöntemleri, SPH

Kaynakça

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