Düzenli Dalgalar Üreten Bir Sayısal Dalga Tankının SPH Yöntemi ile Modellenmesi

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

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