Browsing Master's Theses by Author "Başol, Altuğ Melik"
Now showing items 1-20 of 20
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3-D simulation of droplet impact on static and moving walls
Yılmaz, Anıl (2021-01-13)In the present study, the contact angle model and origin of the parasitic current have been studied to provide accurate prediction of droplet surface interactions in Volume of Fluid (VOF) framework. We investigate the ... -
Design and development of torsion spring based series elastic actuator with nested encoders for wearable exoskeleton robot
his thesis proposes a series elastic actuator design to power an assistive exoskele ton for the paraplegic or stroke patient whom incapable to walk or provide any motion at lower extremity portion of the body. Commonly, ... -
Design and processing of multi-phase high entropy alloys
The multi-principal element alloys (MPEAs) known as high- and medium-entropy alloys possess promising properties due to their highly distorted atomic crystal structures. Employing multi-elements as principal elements has ... -
Development of an accelerated Monte Carlo ray tracing based radiation heat transfer solver
Siddiqui, Faizan Pervez (2017-07)The Monte Carlo ray tracing (MCRT) is a semi-analytical stochastic method for the solution of radiative transfer equation (RTE). However, its high computation cost prevents its extensive use. In this study, an accelerated ... -
Effect of different surface treatments on the tensile and wear behavior of Inconel 625 superalloy and aisi 321 stainless steel
AISI 321 stainless steel and Inconel 625 superalloy are utilized in an extensive range of applications such as aircraft engines, nuclear powerplants and industrial furnaces due to their excellent mechanical properties at ... -
Effect of garments on thermophysiological comfort
Tatar, Ebru (2019-11-24)This study investigates the effect of garment on human thermophysiological comfort. In this thesis simplified but effective model of heat transfer from human skin to the environment through clothing is proposed. A comprehensive ... -
Effect of solar radiation in office spaces
Yelekci, Ali Can (2021-06-10)This thesis examines the design components of an office that influences the thermal comfort of the occupants due to solar radiation, such as external solar shades, various window glasses, partitions between desks and floor ... -
An experimental and numerical investigation of immersion cooled blue led combined with yag:ce phosphor for thermal, electrical and optical performance
At the new age of illumination, light emitting diodes (LEDs) have been proven to be the most efficient alternative to conventional light sources. Yet, in comparison to the other lighting systems, LEDs can withstand a lower ... -
Experimental and numerical investigations on compact plate heat exchanger
Peçenek, Erdem (2019-08-15)The objective of this thesis was to understand ow phenomena inside chevron type plate heat exchangers. To reach this goal, several visualization experiments designed and conducted. Also Large eddy ow simulations were ... -
An experimental research on the effects of frost formation on different environmental conditions and surface configurations
Frost formation on finned surfaces is observed on heat exchangers in cooling systems such as refrigerators and air conditioners. Accumulated frost on finned surfaces blocks the air flow in between fins and reduces the ... -
Human body heat exchange mechanism and thermal comfort via visual impact
Tunçel, Elif Gizem (2019-12)Thermal comfort is a combination of several components and can be described in many ways while for all definitions the precedence is human. In this thesis, thermal comfort is examined through the environmental differences ... -
An investigation into mechanical and thermal characteristics of synthetic jet actuators with compact packaging
Işıl, Onuralp (2021-01-05)Cooling systems have been one of the most important elements in packaged electronics due to their inseparable relation with performance. Processors, light emitting diodes (LED), servers, advanced communication systems, ... -
Manufacturing and mechanical behavior of lightweight composites by accumulative roll bonding
Tahir, Furqan (2021-08-18)Severe plastic deformation (SPD) methods have received significant attention in fabricating a combination of similar and dissimilar metal composites. Accumulative roll bonding (ARB) is one of the SPD techniques employed ... -
Mechatronic design and analysis of a solenoid based injector
Yağcı, Ayhan (2019-08-19)Injectors are devices for producing spray, namely, for creating small liquid droplets. In the automotive industry, generally, the injectors are used to inject fuel into the combustion chamber. In recent years, systems are ... -
Numerical and theoretical analysis of external gear pump
İmamoğlu, Deniz (2019-01-28)External gear pumps are one of the mostly used pump types in the uid power applications due to simplicity, low cost and long operation period. However, there are some disadvantages such as internal leakages, noise and ... -
Numerical investigation of the radiant heating performance of a continuous annealing furnace
Annealing as a type of heat treatment process is widely used in the glass manufacturing industry. It is the last stage of the manufacturing process and has a highly dominant effect on the quality of the glass. Especially ... -
Simulations of droplet impacts on hydrophobic moving walls
Heidarifatasmi, Hosein (2017-08)Numerical simulations of water drop impact onto hydrophobic surfaces (Wax, Teflon) are carried out through usage of Eulerian multiphase model. Volume of fluid (VOF) model is used to capture the deformation of the water ... -
Thermal and optical interaction of tightly packaged LEDs in automotive lighting applications
Uras, Umut Zeynep (2018-11-20)This study aims to enhance the thermal management of an LED light engine for automotive exterior lighting with an advanced heat spreader. Although LEDs have many advantages, their applications require an accurate thermal ... -
Thermal underhood analysis of a heavy commercial vehicle using open source CFD package openFOAM
Ayhan, Çağatay Emre (2021-01-13)Underhood thermal design of heavy commercial vehicles has a large influence on the performance and reliability of the vehicles. Thermal design of underhood compartment is a challenging task with many constraints and design ... -
Thermo-mechanical processing and phase transformation behavior of Cu-Al-Mn shape memory alloy
Seyedmohammadi, Seyedveghar (2021-08-18)Thermo-mechanical Processing And Phasetransformation Behavior Of Cu-al-mn Shape Memory Alloy. Cu-Al-Mn shape memory alloys have attracted noticeable interest between copper-based SMAs, due to the high ductility and wide ...
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