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Dissertations/Theses - Department of Mechanical Engineering: Recent submissions

Now showing items 61-80 of 367

Flow behavior through t- and y-junctionsin a model blood vessel

Joy, Md. Saddam Hossain (Department of Mechanical Engineering, 2018-03-04)

In the present work, a numerical computation of shock train phenomena inside a gas dynamic flow passage is studied. The flow passage is of rectangular cross-section with a diverging angle of 1.3°. Reynolds Averaged ...
Effect of additives on rice husk briquette by piston press system

Miah, Manik (Department of Mechanical Engineering, 2017-10-29)

Energy crisis is now a major problem throughout the world. That is why renewable energy has gained much popularity day by day. Recent enormous researches are going on alternative fuel. In this respect, biomass briquette ...
Mixed boundary-value approach to analysis of thick fiber-reinforced composite beams on simple supports

Khan, Md. Faysal (Department of Mechanical Engineering, 2017-08)

This thesis addressess a new analytical scheme for determining the elastic field of thick fiber-reinforced composite beams on simple supports. More specifically, the stress and displacement fields of thick fiber-reinforced ...
Computational study of nanoindentation in aluminium and its alloys

Mojumder, Satyajit (Department of Mechanical Engineering, 2017-12-19)

Nanoindentation is a useful technique to measure mechanical properties of material such as elastic modulus, hardness, etc. It is possible to measure the local properties of homogeneous or heterogeneous material using ...
Performance of water cooled minichannel heat sink with cross flow

Bari, Md. Fazlul (Department of Mechanical Engineering, 2017-01-11)

Minichannels embedded in solid matrix has already been proven as a very efficient way of electronic cooling. Traditional minichannel heat sink consists of a single layer of parallel channels fabricated in silicon or copper ...
Experimental study on aerodynamic characteristics Of NACA 4412 aerofoil with different planforms

Islam, Mohummad Sharifu (Department of Mechanical Engineering, 2017-10-28)

The main function of a wing of an aircraft is to generate lift force to make the flight possible in the air. This force is generated by a special wing cross section which is called areofoil. and the silhouette of the wing ...
Predictions of thermal cycling life of PBGA microprocessor components with variation of mechanical properties of the packaging materials

Shakil, Ahmad Shahedi (2017-06-17)

Plastic Ball Grid Array (PBGA) is one of the most popular microprocessor components used in today’s electronic industries. The primary objective is to transmit electronic signals from the chip to the PCB of the circuit. ...
Latest developments in geographic information systems

Nazmu lHasan, Md. (Department of Mechanical Engineering (ME), 2017-08-17)

The present work is carried out to investigate mixed convection heat transfer characteristic within a ventilated square cavity having a rotating circular conducting solid cylinder. Forced convection flow conditions are ...
Polycrystallinity and grain size effects on tensile and creep behaviour of tungsten nanomaterial

Saha, Sourav (Department of Mechanical Engineering (ME), 2017-11-14)

Though use of Tungsten (W) as nanomaterial has been increasing there is lack of knowledge on its failure behaviour and other mechanical properties at nanoscale. In order to investigate plasticity and creep mechanism at the ...
Molecular dynamics investigation of heat capacity of nanogap confined liquid

Mahmud, Rifat (Department of Mechanical Engineering (ME), 2014-10)

Geometric confinement with characteristic length comparable to the molecular diameter, can induce a dramatic change in the transport properties of fluids which is of great importance from technological point of view like ...
Aerodynamic characteristics of a transonic airfoil cascade

Saha, Sudarshan Chandra (Department of Mechanical Engineering (ME), 2016-12)

The trend towards higher pressure ratio and compact turbomachines with a reduced number of stages leads to a considerable increase of aerodynamic loading of the airfoil cascades. Thereby the velocities relative to the ...
Atomistic multiscale modeling of wavy carbon nanotube reinforced polymer nanocomposites

Paul, Debangshu (Department of Mechanical Engineering (ME), 2016-07)

Carbon nanotube (CNT) is a multifunctional nanostructured material with exceptional mechanical, thermal and electrical properties and one of the strongest materials known to men. CNTs are frequently used as reinforcements ...
Simulation of wetting behavior of liquid droplets on different types of micropatterned surfaces

Goswami, Anjan (Department of Mechanical Engineering (ME), 2016-12)

self-cleaning and anti-icing. Superhydrophobic surfaces have extreme water repellent properties associated with very high static contact angles and low resistance to liquid motion on surfaces. These properties result ...
Energy and exergy analysis of waste heat recovery systems using organic ranking cycle

Saha, Anup (Department of Mechanical Engineering (ME), 2016-08)

Exergy analysis of thermodynamic systems along with the energy analysis is growing rapidly. Exergy quantifies the potential of available energy to do useful work. Exergy analysis is fruitful to identify processes where ...
Explosive Homogeneous nucleation boiling in ethanol

Ashik Hasan (Department of Mechanical Engineering (ME), 2016-01)

The characteristics of homogeneous boiling in ethanol subjected to rapid heating with a linearly increasing boundary temperature condition have been studied by applying a macroscopic model based on analytical solution of ...
Stress analysis of non-uniform guided composite structures of hybrid laminates

Jamil Hossain, Md. (Department of Mechanical Engineering (ME), 2016-06)

The present research addresses a new computational study for the analysis of the elastic field of both uniform as well as non-uniform guided structures of hybrid laminated composites. Laminates composed of different ply ...
Numerical study of forced convection heat transfer over circular and oval tube banks using vortex generators

Rejaul Haque, Md. (Department of Mechanical Engineering (ME), 2016-07)

The present work represents a 2-D and 3-D numerical investigation of forced convection heat transfer over circular and oval tube banks consisting of seven rows of tubes in an inline arrangement with rectangular longitudinal ...
Stress analysis of a sandwich structure having isotropic layers using finite difference method

Khairul Habib Pulok, Md. (Department of Mechanical Engineering (ME), 2016-07)

This thesis deals with the stress analysis of sandwich structured composite materials. Materials under consideration are assumed to be perfectly bonded together. Finite difference method is used for the solution of two ...
Exergetic and power augmentation analyses of gas turbine with air-bottoming combined cycle

Jahidul Hoque, Muhammad (Department of Mechanical Engineering (ME), 2016-02)

Concept of exergy based analysis for the thermodynamic evaluation of energy conversion systems is steadily growing. Exergy analysis efficiently acts as a supplement with energy analysis to identify the origin of losses ...
Experimental investigation of wind effect on square, pentagonal and hexagonal staggered cylinders

Proma Anwar (Department of Mechanical Engineering (ME), 2016-02)

In this research work, an experimental investigation of wind effect on square, pentagonal and hexagonal staggered cylinders was carried out. The study was performed on both the single cylinder and the group consisting ...

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