Computational Fluid Dynamics Applications in Food Engineering

Yıl 2016, Cilt: 14 Sayı: 4, 465 - 471, 01.12.2016

Özge Süfer Seher Kumcuoğlu Şebnem Tavman

Öz

Computational fluid dynamics CFD analyses systems including heat transfer, fluid flow and chemical reactions by means of computer based simulations. CFD codes have been developed within the scope of numerical algorithms for solving nonlinear partial differential equations. Experimental data are generally used to validate CFD solutions through comparing magnitudes that are found experimentally and numerically. CFD analysis is completed with drawing images, lines, vectors and/or animations after creating geometry and mesh grid , customizing physical model, determining boundary counditions and increasing the model accuracy by numerical options stages. Today, CFD applications have become indispensable in system design in food industry because of having advantages for both consumers and environment. Various processes e.g. packaging, cold storage, freezing, baking, sterilization, drying and designing and analyses of systems e.g. heat exchanger and agitated vessel have been already benefited from CFD technology

Anahtar Kelimeler

Computational fluid dynamics, Heat transfer, Fluid flow, Food engineering

Gıda Mühendisliğinde Hesaplamalı Akışkanlar Dinamiği Uygulamaları

Öz

Hesaplamalı akışkanlar dinamiği HAD , bilgisayar temelli simülasyonlar sayesinde ısı transferi, akışkan akışı ve kimyasal reaksiyonlar içeren sistemleri analiz eder. HAD kodları lineer olmayan kısmi diferansiyel denklemleri çözen nümerik algoritmalar çerçevesinde geliştirilmiştir. Sayısal ve deneysel olarak bulunan genel büyüklüklerin karşılaştırılması yoluyla HAD çözümlerini doğrulamak için çoğunlukla deneysel veriler kullanılır. Geometri ve meş ağ oluşturma, fiziksel modeli özelleştirme, sınır koşullarını belirleme, nümerik seçeneklerle modelin kesinliğini arttırma aşamalarından sonra çözüme geçilir ve şekil, doğru, vektör çizimi ve/veya animasyonlarla HAD analizi tamamlanmış olur. Günümüzde hem tüketiciler hem de çevre için bilinen yararlarından ötürü HAD uygulamaları, gıda endüstrisinde sistem tasarımında vazgeçilmez hale gelmiştir. Hâlihazırda, gıda maddelerinin ambalajlanması, soğukta depolanması, dondurulması, fırında pişirilmesi, sterilizasyon ve kurutma gibi pek çok proses ile ısı değiştirici, karıştırmalı kazan gibi sistemlerin tasarım ve analizinde hesaplamalı akışkanlar dinamiği teknolojisinden yararlanılmaktadır

Anahtar Kelimeler

Hesaplamalı akışkanlar dinamiği, Isı transferi, Akışkan akışı, Gıda mühendisliği

Kaynakça

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