Bachelor's degree in mechanical engineering/ general from College of engineering in University of Mosul/, 1996

Apr 3, 2025 - Present

Master degree in mechanical engineerong / applied mechanics and design form College of Engineering in Tikrit University 2012

Apr 3, 2025 - Present

PhD studuent / Tikrit University/ College of Engineering/ Mechanical Department

Apr 3, 2025 - Present

A comparative study between analytical and numerical solution of unsteady state one-dimensional heat transfer for different materials

Jun 2, 2015

Journal Kirkuk University Journal /Scientific Studies (KUJSS) Volume

publisher Kirkuk University

DOI 10.32894/kujss.2015.104981

Issue 3

Volume 10

The present investigation includes a comparative study of numerical solution methods with analytical solution for one dimensional transient conduction problems. For this purpose, six different materials were selected and distributed in two groups (metallic and nonmetallic) materials. Group of metallic materials were such as pure copper, pure Aluminum and Iron, whereas a group of nonmetallic materials such as sandstone, concrete and building brick. Four numerical solution methods were selected as (finite difference, thermal capacitance, and finite element) and also Ansys program to compare them with analytical solution. The simulation results showed that the error ratio between numerical solutions and analytical solution would be higher at the transient period in all materials, while this ratio decreased when the case of the materials would reaches steady state, and the results indicated that the materials having high thermal conductivity would give less error ratio in the beginning of simulation than other materials which had low thermal conductivity.

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Theoretical and Experimental Study for Free Vibration for Cantilever Plate Partially or Totally Submerged in Fluid

Oct 1, 2015

Journal Tikrit Journal of Engineering Sciences

publisher Tikrit University

DOI https://doi.org/10.25130/tjes.22.2.07

Issue 2

Volume 22

In this thesis the dynamic characteristics (natural frequency and mode shape) of cantilever plates was studied when they immersed partially or totally in the fluid. The viscosity, density and compressibility of the fluid were taken into account in the theoretical analysis by using the (ANSYS Package) which mainly depends on the (Finite Element Method) in the analysis; by execute interaction between fluid and plate in the interface surface. The (damping analysis) method was used to analyze the new fluid-plate system; this new system is different in its characteristics when compared with the characteristics of the fluid or plate individually. The results were compared with the dry plate characteristics, which were obtained by using the same analyses package, but in this case the (modal analyses) method was used. The natural frequencies and mode shapes for cantilever plates with different aspect ratios immersed in different ratios in fluid were obtained. The effects of submerging ratio and aspect ratio on the plate's dynamic characteristics theoretically and experimentally were investigated. The results showed that, the submerged of cantilever plate in fluid reduce the natural frequency, and this depends on the fluid type, submerged ratio and aspect ratio, and the density is the most influential fluid property on the dynamic characteristics of the plate.

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STUDY MANUFACTURING INSULATING MATERIAL FROM THE PAPER USER TO ISOLATE DOMESTIC WATER TANKS

Jan 1, 2016

Journal مجلة التقني

publisher Medwell Journals

Issue 1

Volume 29

In present study the ability to using the used paper to produce insulation material were studied for transient heat transfer through cylindrical tank containing hot water, and compared with fiber glass insulation. The material of paper insulation produced by changing the gathering used paper to dough by cutting, crumbling and dough it in water, then covering the tank by the produced dough with different thickness layers, and finally drying. The dropping of the temperature with time were obtained experimentally and theoretically by finite Element method (FEM) by using the (ANSYS) software for five different cases, without insulation, insulation by fiber glass, and insulation by paper in three different thicknesses (1, 2 and 3 cm) respectively. The dropping in temperature in certain time were obtained, the results showed that the materials made from used paper give a good ability in insulation, the paper material with (3 cm) thickness have approximately the same insulation behavior of fiber glass insulation with (1 cm) thickness. The different ratios between the numerical results by (FEM) by using the software was very small, and this prove that the dependence ability to use (FEM) by using the software generally in engineering analysis, and especially in thermal analysis.

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Improve the Productivity of Solar Distillation by Iron Fillings

Dec 1, 2018

publisher Medwell Journals

DOI 0.36478/jeasci.2019.5985.5992

Issue 13

Volume 9

The experimental study focused to improve the rate of heat transfer between water and basin solar still that leads to improving the productivity of solar distillate by increase the basin absorber by adding the black stones and iron filings on the basis of the study compares between the conventional solar stil stones and third one black stone covered with iron filings. The Study was done at water depth (30mm). Its observed that maximum productivity was at solar covered with iron filings and it increase the productivity 20.75% at 30mm depth.

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Effect of Gravity, Side Pressure and Direct Force on the Free Vibration Characteristics of Cantilever Plate

Jul 1, 2019

Journal Journal of Engineering and Applied Sciences

publisher Medwell Journals

DOI 10.36478/jeasci.2019.5985.5992

Issue 3

Volume 14

Effect of Gravity, Side Pressure and Direct Force on the Free Vibration Characteristics of Cantilever Plate

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Study on the Circular Perforations Effect in the Rectangular Fins on Convection Heat Transfer

Oct 1, 2019

Journal Journal of Engineering and Applied Sciences

publisher ARPN

DOI 10.36478/jeasci.2019.9066.9072

Issue 5

Volume 14

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Type and number of elements effect on the calculation of cantilever beam free natural frequencies using the finite element method

Apr 23, 2020

Journal IEEE

publisher IEEE

DOI 10.1109/ICECCPCE46549.2019.203747

The free vibration calculation of a rectangular cross-section cantilever beam will be analyzed in this study. Using the finite element method (FEM), the stiffness and mass matrices were created and solving the behavior equation with a general program suitable for any number of a one-dimension element using (MATLAB) program. For the same condition, but with different numbers and types of elements, the (ANSYS) software will be used to simulate the cantilever beam. The first three natural frequencies and mode shapes are investigated for each case, and the results compared with the exact solution. The results showed that the difference between the exact and numerical results are decreases when the number of elements increases and the one-dimension element used with the (MATLAB) is more efficient for beam, one-dimension element (BEAM188 & BEAM189) gives more efficient results with less number of elements in comparing with the two and three-dimensions element (PLANE183 & SOLID186), two and three-dimensions element (PLANE182 & SOLID185) needs high number of elements to give suitable results.

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Effect of Crank Pin Center Offset on the Piston Movement Characteristics

Nov 20, 2020

Journal Solid State Technology

publisher Solid State Technology

Issue 6

Volume 63

The system of the crank, connecting rod and piston, is a critical system of engines and compressors. The main objective of this work is to study the piston movement characteristics (displacement, velocity, and acceleration), with inline and offset types of the piston path concerning the crank pin. The dimensions of the crank and crank-pin offset were assumed as ratios of the connecting rod length. The effect of the offset on the piston behavior was investigated. The piston movement line offset has an apparent effect on the piston movement characteristics, where the displacement, velocity, and acceleration are decreased from IDC to the maximum point, and increase from maximum point to the ODC concerning the inline condition. Similarly, the offset changes the point at which the piston changes the movement direction, and change the point at which have (zero) and (maximum) velocity and acceleration. The angle of the crank at (IDC) and (ODC) are not equal to zero when the piston is at the offset condition. All these offset effects have led to changes in the timing of the patterns of motor and compressor stroke time.

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Using Mechanical Vibration to Enhance Heat Transfer on an Extended Surface: A Review Study

Jul 28, 2023

Journal American Journal of Science, Engineering and Technology

publisher American Journal of Science, Engineering and Technology

DOI 10.11648/j.ajset.20230803.16

Issue 3

Volume 8

Given the significance of improving heat transfer in thermal engineering equipment, researchers in this field have developed numerous methods for heat transfer improvement. These methods are classified as active and passive. Several researchers consider the use of forced vibration in improving heat transfer to be one of the most significant topics in the applied field. This is because some thermal equipment has this feature due to its nature. As a result, the current study emphasizes research dealing with mechanical vibration in enhancing heat transfer in free convection conditions. The results of these studies agreed that heat transfer by free convection and vibration contributed to improving the thermal performance of thermal equipment compared to its at-rest condition. These studies' findings indicate an increased heat transfer coefficient as frequency is raised, particularly in forced convection heat transfer. However, the limited vibration amplitude has an impact on heat transfer. In some studies, the fin slope was studied in addition to vibration. These studies showed that fin tilting reduces heat transfer optimization value with fin tendencies that produce vibrations. Furthermore, while the vibration process does enhance heat transfer capacity, it is accompanied by certain drawbacks. These include the generation of noise, which can disturbance to humans, as well as potential damage to mechanical components of the equipment.

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Number of Tape Twists Effects on Solar Water Heater Performance

Aug 28, 2023

Journal INTERNATIONAL JOURNAL OF INTEGRATED ENGINEERING

publisher UTHM Publisher

DOI https://doi.org/10.30880/ijie.2023.15.04.014

Issue 4

Volume 15

In solar applications, research into appropriate methods to improve the performance of the solar water heater is important. The current work studies improved the performance of the solar water heater by analyzing the effect of the number of added tape twists. A four-pipe solar water heater was built, and four twisted tapes were used, each with a different number of twists (flat, one, three, and five twists), and each tape was inserted into a pipe. The addition of twisted tapes has found that improved the performance of the solar water heater, and this improvement increased with the number of twists. A one, three, and five-twisted tapes achieved a temperature increase of (5.33, 14.09, and 20.27%) respectively, relative to a flat tape, and the instantaneous efficiency of the five twists tape was the highest, where the highest instantaneous efficiency of the four types rates (9.6, 13.4, 13.8, and 15 %) respectively

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