Turbulent flow is a complicated process that frequently appears not only in nature but also in engineering applications. Numerical methods frequently are used to solve turbulent flow problems due to the trouble in solving Navier-Stokes equations. Navier-Stokes equations including inner pipe rotation effect are solved via two different numerical techniques. The efficiency of the proposed numerical technique is compared with the obtained solutions of Newton-Raphson method. The proposed method is computationally expensive, however, it may allow tackling the non-linearity of challenging problems in hydraulics. A mechanistic model including proposed numerical method is also developed in order to predict pressure gradient for fully developed turbulent flow through fully eccentric horizontal annulus including pipe rotation. Mathematical model is confirmed by the experimental study, which is conducted in Izmir Katip Celebi University. Türbülanslı akımlar, yalnızca doğada değil mühendislik uygulamalarında da görülen karmaşık bir yapıdadır. Navier-Stokes denklemlerinin türbülanslı çözümlerinin karmaşık ve zor olmasından dolayı sayısal yöntemler sıklıkla kullanılır. İki farklı sayısal teknik vasıtasıyla boru dönmesi hesaba katılmış Navier-Stokes denklemleri çözülmüştür. Geliştirilen sayısal yöntemin etkinliği Newton-Raphson method kullanılarak elde edilen sonuçlarla karşılaştırılmıştır. Geliştirilen sayısal metot her ne kadar işlevsel olarak ağır olsa da, hidrolikteki linear olmayan zor problemlerin çözümünü sağlamaya yol açabilir. İç içe geçmiş borular arasından geçen tam gelişmiş türbülanslı akımın içteki borunun dönmesi etkili olduğu basınç farklarının tayini için geliştirilmiş sayısal metot ile birlikte bir mekanistik model geliştirilmiştir. Türkçe Turkish English. Teknik Dergi. Araştırma Makalesi. EN TR. PDF Kütüphaneme Ekle ×. Araştırma Computational Analysis With The Casino Tekniği Kapat. Öz Turbulent flow is a complicated process that frequently appears not only in nature but also in engineering applications. Anahtar Kelimeler eccentric annular flow; finite difference method; mechanistic modeling; newtonian fluid; pipe rotation; turbulent flow. Kaynakça Referans1 Deissler, R. Analysis of turbulent Computational Analysis With The Casino Tekniği transfer, mass transfer, and friction in smooth tubes at high Prandtl and Schmidt numbers. Referans2 Deissler, R. Analysis of fully developed turbulent heat transfer and flow in an annulus with various eccentricities. NACA Tech. Note Referans3 Wolffe, R. The maximum velocity locus for axial turbulent flow in an eccentric annulus. AIChE Journal, 9 3 Referans4 Heyda, J. A Green's function solution for the case of laminar incompressible flow between non-concentric circular cylinders. Journal of the Franklin Institute, 1 Referans5 Jonsson, V. Results of laminar flow analysis and turbulent flow experiments for eccentric annular ducts.
Ozturk, N. Experimental study on heat transfer and pressure drop of twisted oval tube bundle in cross flow. Society of Petroleum Engineers. Heat transfer characteristics of parallel and counter flow micro-channel heat exchangers with varying wall resistance. Hayri Hakan Denli Tam metin bildiri.
Education Information
Personal Information. Prof. Assistant Professor, Yildiz Technical University, Faculty Of Electrical & Electronics, Electrical Engineering Department. A Comprehensive Disturbing Effect Analysis of Multi-Sectional Rotor Slot Geometry for Induction Machines in Electrical Vehicles computational analysis. Academic Titles / Tasks. Alnak D. E. Asst. Office Phone: +90 Email: [email protected] Web: https://[email protected] EBRU ÖZTEKİN KULOĞLU. Computational Analysis of Heat and Mass Transfer of Impinging Jet onto Different Foods during the Drying Process at Low Reynolds Numbers.Turbulent heat transfer over a moving surface due to impinging slot jets. The maximum velocity locus for axial turbulent flow in an eccentric annulus. Thermal Science,19, Numerical investigation of the heat transfer and pressure drop on the tube bundle support plates for inline and staggered arrangements. Referans22 Iyoho, Aniekan W. IEEE E. Energy,76, Exact solution for in plane static problems of circular beams made of functionally graded materials Mechanics Based Design of Structures and Machines, Şubat , s. Teknik Dergi 29 4 — Teknik Dergi, 29 4 , Nusselt number and friction factor values have been observed to increase with increasing Reynolds number in all geometric configurations. Hamid, M. Öz This study examines the friction factor, convective heat transfer, and area goodness factor of both inline and staggered tube bundles. Anahtar Kelimeler eksantrik borular arasındaki akış ; sonlu farklar metodu; mekanistik modelleme; newtonian akışkan; boru dönmesi; türbülanslı akış. Ansys-Fluent Ansys-Fluent Investigation of LBM curved boundary treatments for unsteady flows. Temmuz ;29 4 Genel olarak, SST türbülans modelleri, tüm geometrik konfigürasyonlar için makul sonuçlar vermiştir. Osman Bulut Özgün Makale. Novel rotor design for high-speed solid rotor induction machines. Technological and economical analysis of salient pole and permanent magnet synchronous machines designed for wind turbines. Journal of Heat Transfer, , Heat transfer evaluation of an enhanced heat transfer tube bundle. PIV measurement of flow through normal triangular cylinder arrays in the passage of a model plate-tube heat exchangers. International Journal of Heat and Mass Transfer, 55 , Özel Aralık Girişi. Isıl sınır koşulu olarak, girişte sabit sıcaklık uygulanır ve destek plakasında üniform ısı akışı gerçekleşir. The numerical prediction of viscous flow and heat transfer in tube banks.
