Department of Mechanical Engineering, Article

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Recent Submissions

Characterization of tars from recycling of PHA bioplastic and synthetic plastics using fast pyrolysis
Akgül, Alican; Palmeiro-Sanchez, Tania; Lange, Heiko; Magalhaes, Duarte; Moore, Sean; Paiva, Alexandre; Kazanç Özerinç, Feyza; Trubetskaya, Anna (2022-10-05)
© 2022 The AuthorsThe aim of this study was to investigate the pyrolysis products of polyhydroxyalkanoates (PHAs), polyethylene terephthalate (PET), carbon fiber reinforced composite (CFRC), and block co-polymers (PS-b-P2V...
Capillary boosting for enhanced heat pipe performance through bifurcation of grooves: Numerical assessment and experimental validation
Saygan, Samet; Akkus, Yigit; Dursunkaya, Zafer; Cetin, Barbaros (2022-10-01)
© 2022 Elsevier LtdIn this study, an enhanced heat pipe performance for grooved heat pipes has been demonstrated through capillary boosting with the introduction of the bifurcation of grooves. Wider grooves regularly branc...
A local discontinuous Galerkin level set reinitialization with subcell stabilization on unstructured meshes[Formula presented]
Karakuş, Ali; Chalmers, N.; Warburton, T. (2022-10-01)
© 2022 Elsevier LtdIn this paper we consider a level set reinitialization technique based on a high-order, local discontinuous Galerkin method on unstructured triangular meshes. A finite volume based subcell stabilization ...
Photonic design for color compatible radiative cooling accelerated by materials informatics
Guo, Jiang; Ju, Shenghong; Lee, Yaerim; Günay, Ahmet Alperen; Shiomi, Junichiro (2022-10-01)
© 2022 Elsevier LtdPassive radiative cooling can dissipate heat load directly through the high transparency atmospheric window (8–13 μm). The conventional strategy for radiative cooling has mainly focused on simultaneously...
Escherichia coli Enumeration in a Capillary-Driven Microfluidic Chip with SERS
Doğan, Üzeyir; Sucularli, Ferah; Yıldırım, Ender; Çetin, Demet; Suludere, Zekiye; Boyaci, Ismail Hakki; Tamer, Uğur (2022-09-01)
Experimental and numerical investigation of a novel pipe-network mini channel heatsink
TOPRAK, Beytullah İsmet; Baghaei Oskouei, Seyedmohsen; Bayer, Özgür; SOLMAZ, İsmail (2022-07-01)
© 2022 Elsevier LtdThermal management of electronics is an essential issue since it affects the components' function and longevity. In this study, a novel mini channel heatsink comprised of 3D networks of cylinders with a ...
Hybrid Force and Motion Control of a Three-Dimensional Flexible Robot Considering Measurement Noises
Kılıçaslan, Sinan; Özgören, Mustafa Kemal; Ider, Sıtkı Kemal (2022-07-01)
This work addresses the end-effector trajectory-tracking force and motion control of a three-dimensional three-link robot considering measurement noises. The last two links of the manipulator are considered as structurally...
Stresses in multi-layer coatings in Hertzian contact with a moving circular punch
Toktaş, Selim Ercihan; Dağ, Serkan (2022-07-01)
© 2022 Elsevier LtdThis article presents analytical solution procedures for moving Hertzian contact problems involving multi-layer and functionally graded coatings. A frictional circular punch is assumed to slide down the ...
A Combined Experimental and Numerical Thermo-Hydrodynamic Investigation of High-Temperature Fluidized-Bed Thermal Energy Storage
Mehrtash, Mehdi; Polat Karadiken, Esra; Tarı, İlker (2022-06-01)
The present research describes the design, analysis, and modeling of an air-granular particle fluidized-bed system with dimensions of 0.08 m × 0.4 m × 0.08 m. The hydrodynamic and thermal experiments are designed to verify...
Alternative experimental methods for machine tool dynamics identification: A review
Iglesias, Alexander; Taner Tunç, L.; Özşahin, Orkun; Franco, Oier; Munoa, Jokin; Budak, Erhan (2022-05-01)
© 2022An accurate machine dynamic characterization is essential to properly describe the dynamic response of the machine or predict its cutting stability. However, it has been demonstrated that current conventional dynamic...
Investigation of double-layered wavy microchannel heatsinks utilizing porous ribs with artificial neural networks
Bayer, Özgür; Baghaei Oskouei, Seyedmohsen; Aradag, Selin (2022-05-01)
© 2022 Elsevier LtdMicrochannel heatsinks with porous media, wavy and multi-layered configurations introduce compact designs and high efficiencies in cooling applications. Current Computational Fluid Dynamics (CFD) based s...
Development of a microfluidic platform to maintain viability of micro-dissected tumor slices in culture
Parsian, Maryam; MUTLU, PELİN; Yıldırım, Ender; Ildiz, Can; Özen, Can; Gündüz, Ufuk (2022-05-01)
© 2022 Author(s).One of the issues limiting the development of personalized medicine is the absence of realistic models that reflect the nature and complexity of tumor tissues. We described a new tissue culture approach th...
Nanoheterogeneous ZrTa metallic glass thin films with high strength and toughness
Behboud, Ali B.; Motallebzadeh, Amir; Özerinç, Sezer (2022-04-25)
This study investigated the mechanical behavior of ZrxTa1−x (x = 21–79 at%) thin films and nanolayered films of ZrTa with modulated composition as model systems to gain insight into the hardness and toughness of metallic g...
Experiment-based optimization of an energy-efficient heat pump integrated water heater for household appliances
Kütük, Erkan; Çetin, Barbaros; Bayer, Özgür (2022-04-15)
Novel experimental-based study aims to determine the extent to which performance parameters of water heater system are altered when the heat pump is integrated and to clarify the optimum values of system variables by means...
A process modeling approach for micro drilling of aerospace alloys with a waterjet guided laser system
Subasi, Levent; Gökler, Mustafa İlhan; Yaman, Ulaş (2022-04-01)
Laser drilling is a preferred method to make cooling holes on gas turbine parts. Although it is a fast process, there are some quality issues. Waterjet guided laser (WJGL) is a hybrid process, in which a laser beam is coup...
AN ACCELERATED NODAL DISCONTINUOUS GALERKIN METHOD FOR THERMAL CONVECTION ON UNSTRUCTURED MESHES: FORMULATION AND VALIDATION
Karakuş, Ali (2022-04-01)
We present a GPU-accelerated method for large scale, coupled incompressible fluid flow and heat transfer problems. A high-order, nodal discontinuous Galerkin method is utilized to discretize governing equations on unstruct...
Multi-layer model for moving contact problems of functionally graded coatings with general variations in physical properties
Toktaş, Selim Ercihan; Dağ, Serkan (2022-04-01)
This paper presents a multi-layer model for moving contact problems of functionally graded coatings whose physical properties have general spatial variations. The coating is assumed to be composed of an arbitrary number of...
IMPLEMENTATION, VERIFICATION AND ASSESSMENT OF VORTEX CAPTURING CAPABILITIES OF k-kL TURBULENCE MODEL
Baran, Özgür Uğraş (2022-04-01)
This study presents the first results of a new turbulence model implementation in our compressible finite volume CFD solver. The k - kL turbulence model is one of the newest two-equation models, and it is based on the idea...
Embedding Information into or onto Additively Manufactured Parts: A Review of QR Codes, Steganography and Watermarking Methods
Usama, Muhammad; Yaman, Ulaş (2022-04-01)
The paper gives a detailed review of the approaches adopted for embedding information into/onto additively manufactured parts. The primary purpose of this paper is to review all the techniques adopted for embedding informa...
Buildings sector from a sustainable carbon constrained energy generation perspective
Cubukcu (Cubukcu), Nilay; Tarı, İlker (2022-03-01)
There is a consensus that climate change, which is about to become a major disaster for humankind, is largely due to anthropogenic activities. CO2 emissions play a dominant role there. Therefore, mitigating CO2 emissions c...
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