Humam M.salih - Academia.edu (original) (raw)

Uploads

Papers by Humam M.salih

Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 )

The irrigation systems, water supply system, sewage water system ….etc. Dealing with many types o... more The irrigation systems, water supply system, sewage water system ….etc. Dealing with many types of pipes and fittings depending on the applications. The current study was concert on test the polyethylene (PE) and polyvinyl chloride (PVC) pipes experimentally and theoretically under external loads and internal pressure to simulate the application conditions of pipes which are buried under ground used to transit the fluid under pressure such as drink water, sewage water or any other purpose and find out the deformation, stress and strain due to this loads. The tested was carried out for two size (actual and standard) of the two pipes (PE and PVC). The external load represented by a force in range (10-50KN), and the internal loads represented in pressure in range (5-20 bar). In the experiment a hydraulic press was used to supply the external load and hydraulic pump to supply the internal pressure with two adapter on the two end of tested pipe. The results showed that the deformation, s...

Journal of Mechanical Engineering Research and Developments, 2019

A Numerical simulation for the turbulent airflow around a symmetrical airfoil (NACA 0012) adjuste... more A Numerical simulation for the turbulent airflow around a symmetrical airfoil (NACA 0012) adjusted in tandem with circular cylinder, the airfoil were adjusted at variable angle of attack between (5-20°) with positive clockwise inclination setting the cylinder center in front of the leading-edge centroid using the realizable K-ɛ turbulent model in the ANSYS FLUENT 17 package is performed. The effect of changing the adjusted tandem bodies' configuration, gap (0.05-0.1) and the cylinder size variation on the flow pressure distribution and the airfoil drag coefficient were investigated. The simulation considered in free stream uniform velocity of (25 m/sec) at standard atmospheric pressure. The results showed that using a cylinder with diameter equal to leading edge diameter causes more pressure drop as the tandem gap decreased, noticing that this effect becomes more significant at a high angle of attack. A valuable reduction in drag coefficient of this configuration is achieved and it becomes more with a smaller cylinder diameter with respect to gap distance.

IOP Conference Series: Materials Science and Engineering, 2021

Sustainable development is represented the great challenge of meeting the requirements of humans ... more Sustainable development is represented the great challenge of meeting the requirements of humans for the industrial products, transportation and influence of waste materials whereas sustaining and protecting environmental quality. The main purpose of the current research is to assess the physical properties of base and modified asphalt binders with selected percentages of nano and micro size of steel slag material. Significant physical characteristics of the modified asphalt including; ductility value, softening point, penetration index, penetration grade and viscosity values were measured. Three percentages of nano and micro size of iron slag as (1, 2, and 3) % by of the asphalt weight were blended by a shear mixer set at (3,000) rpm and mixing period fixed at 20 min at 145 °C. In general, the results have shown adding nano and micro steel slag powder that increased the viscosity values, softening point temperature, whereas reduced the ductility and penetration values. Concerning p...

Journal of Mechanical Engineering Research and Developments, Jan 22, 2019