Yazar "RTEÜ, Mühendislik ve Mimarlık Fakültesi, Makine Mühendisliği Bölümü" için Mühendislik Fakültesi listeleme
-
Investigation of the effects of miscible and immiscible binary fluids on thermal performance of pulsating heat pipes
Markal, Burak; Varol, Ramazan (Springer, 2021)Present paper reports and discusses experimental results related to thermal and flow characteristics of asymmetrical designed flat plate closed loop pulsating heat pipe charged with miscible and immiscible binary fluids. ... -
Investigation of the effects of T5 and T6 heat treatments on the structural, mechanical, and tribological properties of Zn-40Al-2Cu-0.1Sr alloy
Hekimoğlu, Ali Paşa; Hacıosmanoğlu, Murat; Tellioğlu, Murat; Savaşkan, Temel (Gazi Üniversitesi, 2024)To assess the effects of T5 and T6 heat treatments on the structural, mechanical, and tribological properties of Zn-40Al-2Cu-0.1Sr alloy several ingots were produced by the permanent mold casting. The structure and properties ... -
Investigation on the fatigue behavior of 7075 aluminum alloy at different aging states
Gong, B. S.; Zhang, Z. J.; Hou, J. P.; Li, R. H.; Liu, R.; Duan, Q. Q.; Wang, X. G.; Liu, H. Z.; Cong, F. G.; Pürçek, Gencay; Yanar, Hande; Demirtaş, Muhammet; Zhang, Z. F. (Elsevier, 2023)To study the effect of the aging state on the low-cycle fatigue (LCF) performance of 7075 Al alloy, LCF experiments with different strain amplitudes (& UDelta;& epsilon;/2 = 0.5%- & UDelta;& epsilon;/2 = 0.9%) were conducted ... -
Kokil kalıba döküm yöntemi ile üretilmiş Al-12Si-(0,02-1)Sr alaşımlarının CVD-TiCN/Al2O3/TiN kaplamalı kesici uç ile tornada işlenmesinde kesme kuvveti ve yüzey pürüzlülüğü üzerine deneysel çalışma
Hekimoğlu, Ali Paşa; Bayraktar, Şenol (Gazi Üniversitesi , Fen Bilimleri Enstitüsü, 2022)In this study, three Al-12Si-Sr alloys containing different ratios (0.02; 0.1 and 1%) strontium (Sr) were manufactured by the permanent mold casting method. The microstructures of the manufactured alloys were determined ... -
LBM curved boundary treatments for pulsatile flow on convective heat transfer and friction factor in corrugated channels
Aslan, Erman; Özsaban, Mert; Kucur, Murad; Koerbahti, Banu; Güven, Hasan Rıza (Sage Publications, 2023)The present research investigates heat transfer and the flow characteristics of periodically corrugated wavy channels numerically under pulsatile flow conditions. The numerical method used here is Lattice Boltzmann Method ... -
Machinability properties of Al-7Si, Al-7Si-4Zn and Al-7Si-4Zn-3Cu alloys
Bayraktar, Şenol; Afyon, Furkan (Springer Heidelberg, 2020)Al-7Si, Al-7Si-4Zn, Al-7Si-4Zn-3Cu alloys were produced by permanent mold casting method to investigate the effects of copper and zinc additions on the machinability properties of Al-7Si alloy. the structural and mechanical ... -
Machine learning driven optimization and parameter selection of multi-surface HTS Maglev
Özkat, Erkan Caner; Abdioğlu, Murat; Öztürk, U. Kemal (Elsevier, 2024)This research aims to tackle the challenges posed by precise force measurement for high temperature superconducting (HTS) Maglev systems, including mechanical constraints, step motor limitations, and sensor resolutions. ... -
Machine learning models to estimate the elastic modulus of weathered magmatic rocks
Ceryan, Nurcihan; Özkat, Erkan Caner; Korkmaz Can, Nuriye; Ceryan, Şener (Springer, 2021)In recent years, several soft computing models have been proposed to estimate the elastic modulus of magmatic rocks. However, there are lacks in models that consider the different weathering degrees in determining the ... -
The mechanical compression performance of ultra-fine grained stainless steel pyramidal lattice core
Kuleyin, Hamdi; Gümrük, Recep; Yanar, Harun; Demirtaş, Muhammet; Pürçek, Gençağa (Taylor & Francis Inc, 2019)Severe plastic deformation (SPD) techniques are prospective ones having ability for desirable high mechanical properties to be achieved without any chemical change in metals. Equal-channel angular pressing (ECAP), one of ... -
Mechanical properties of Al-9Si-0.6Mg-0.1Sr alloy processed by successive hot and cold multi-directional forging
Karabıyık, Sadun; Alemdağ, Yasin; Atmaca, Mustafa; Pürçek, Gençağa; Hekimoğlu, Ali Paşa (Springer, 2023)In this study, the effect of successive hot and cold multi-directional forging (MDF) on the mechanical properties of the Al-9Si-0.6Mg-0.1Sr alloy was explored. The alloy was first homogenized and then forged at 200°C from ... -
A method to classify steel plate faults based on ensemble learning
Özkat, Erkan Caner (2022)With the industrial revolution 4.0, machine learning methods are widely used in all aspects of manufacturing to perform quality prediction, fault diagnosis, or maintenance. In the steel industry, it is important to ... -
Microstructural, mechanical and tribological characterization of Cu-Co-Ni-Be alloy processed via equal channel angular pressing
Demirtaş, Muhammet (Elsevier, 2021)Effects of different processes including various combinations of equal channel angular pressing (ECAP) and aging on the microstructure, mechanical and tribological properties of the quadruple Cu-Co-Ni-Be alloy were ... -
Microstructural, mechanical and tribological properties of ultrafine-grained Cu-Cr-Zr alloy processed by high pressure torsion
Pürçek, Gençağa; Yanar, Harun; Demirtaş, Muhammet; Shangina, Daria V.; Bochvar, Natalia R.; Dobatkin, Sergey V. (Elsevier Science Sa, 2020)The effect of temperature on tribological properties of coarse grained (CG) and ultrafine-grained (UFG) Cu-Cr-Zr alloy processed via high pressure torsion (HPT) was investigated. Dominant wear mechanism depends on both ... -
Mikro pim tipi kanatçıklı ve mikro oyuklu ısı alıcıda doymuş kaynamalı akışın deneysel incelenmesi
Markal, Burak; Kul, Beyzanur (Konya Teknik Üniversitesi, 2023)Mikrokanallarda kaynamalı akış, hava araçlarındaki yüksek kapasiteli elektronik sistemler, bilgisayar işlemcileri ve elektrikli araç bataryaları gibi yüksek yoğunluklu atık ısının açığa çıktığı sistemlerde, sürdürülebilirlik ... -
Non-Newtonian laminar pulsating heat and fluid flow in plane duct
Altunkaya, Ayşe Nur; Aydın, Orhan; Avcı, Mete (Wiley, 2023)In the present study, laminar pulsating power-law momentum and heat transfer in a uniformly heated plane duct is studied analytically. Assuming that fully developed conditions exist both hydrodynamically and thermally, a ... -
A novel fish-drying technique for better environment, quality and sustainability
Kılıç, Aydın; Midilli, Adnan; Dinçer, İbrahim (2010)This study deals with the development of appropriate sustainable strategies for environmental-benign aquatic processing systems. In this regard, the interactions between the aquatic system and its environment are first ... -
A novel latent heat storage unit by introducing jet breakup of phase change material
Tian, Yuchen; Zheng, Mingjie; Fan, Donghao; Zhang, Yanan; Zhao, Jun; Jin, Guang; Wu, Wenfei; Cüce, Erdem; Guo, Shaopeng (Elsevier, 2022)To enhance the heat transfer performance in discharging process, the jet breakup of molten phase change material was introduced into a real scale heat storage unit by numerical method. In order to fully understand its ... -
A numerical analysis of convection heat transfer and friction factor for oscillating corrugated channel flows
Aslan, Erman; Özşaban, Mert; Özçelik, Güven; Güven, Hasan Rıza (Taylor and Francis Ltd., 2019)The aim of this article is to understand numerically the flow and heat transfer characteristics under oscillating flow conditions for periodically corrugated wavy channel. For the same channel, under steady-state flow ... -
Numerical analysis of entropy generation in a square cavity filled with boron-water nanofluid
Şahin, Birol (Springer Heidelberg, 2020)The entropy generation and natural convection in a square cavity filled with boron-water nanofluid is numerically investigated under the influence of different nanoparticle volume fractions and buoyancy forces when heated ... -
The numerical evaluation of crash performance of the pressurized thin-walled tubes
Kuleyin, Hamdi; Gümrük, Recep (Springer, 2022)This paper aims to investigate the energy absorption characteristics of the pressurized thin-walled tubes under axial impact by numerical simulations. The Arbitrary Lagrangian-Eulerian (ALE) model with the Fluid-Structure ...