هندسة المباني

للكاتبين : A.M. El-Zahaby, A. Khalil, E.A. El-Shenawy and M.I. Amr Department of Mechanical Power Engineering, Tanta University, Egypt ABSTRACT The internal flow structure in a centrifugal pump impeller is investigated using Particle Image Velocimetry (PIV). The measurements are performed in a Perspex model of an industrial centrifugal impeller employing fluorescent seeding particles to give full access to near-wall flows. …

للكاتبين : A. A. Abdel Aziz1, A. E. Zohir2 , and N. S. Berbish3 1 Mech. Eng. Dept., Faculty of Eng. At Shoubra, Benha University, Cairo, Egypt 2 Mech. Eng. Dept., Tabbin Institute for Metallurgical Studies, Cairo, Egypt ABSTRACT Heat transfer characteristics of turbulent pulsating flow through a sudden expansion pipe with different diameter ratios were investigated experimentally. The pulsation …

للكاتبين : M. Moawed1and E. Ibrahim2 1Faculty of Engineering Shoubra, Benha University, Cairo, , Egypt 2Faculty of Engineering, Zagazig University, Zagazig, 44519, Egypt ABSTRACT Free convection heat transfer from the inside surface of the horizontal elliptic tube of different axis ratios and different orientation angles with a uniformly heated surface are investigated experimentally. The axis ratio is changed from 1.5 …

للكاتب : Tawakol A. A. ENAB Production Engineering and Mechanical Design Department Faculty of Engineering, Mansoura University, Egypt ABSTRACT : Different numerical unit cells models using ANSYS® finite element package are developed for unidirectional periodic composites made of piezoelectric (PZT) fibers embedded in a soft nonpiezoelectric matrix. These finite element models are used for prediction of the effective electromechanical coefficients …

للكاتبين : Riffat Asim Pasha, M. Zubair Khan and A.M Hashmi Mechanical Engineering Department University of Engineering & Technology Taxila ABSTRACT In the past two decades many theoretical studies, numerical finite element analyses and modeling conducted the fracture and damage of piezoelectric ceramics under electrical, mechanical, thermal and combined electromechanical loading modes. The properties of these materials degrade due to …

للكاتبين : M. Moawed1and E. Ibrahim2 1Faculty of Engineering Shoubra, Benha University, Cairo, 2Faculty of Engineering, Zagazig University, Zagazig, 44519, Egypt ABSTRACT Experimental investigation of free convection heat transfer from the inside surface of vertical and inclined elliptic tubes of different axis ratios; different orientation angles and different inclination angles with a uniformly heated surface are presented. The axis ratio …

للكاتب : A.M. KOHAIL Mech Eng., Prod. Dept.(R), MTC , Cairo ABSTRACT Laser can cut a wide range of materials including ferrous and nonferrous metals, plastics and ceramics. The process uses an assist gas jet to remove the molten material and/or to react chemically with the material to produce additional thermal energy. The development that have taken place relative to …

للكاتبين : Mehmet Savsar1, Ashraf S. Youssef2 1College of Engineering and Petroleum, Kuwait University 2Faculty of Engineering Fayoum University, Fayoum, Egypt ABSTRACT Efficiency of serial production flow lines is severely affected by equipment unreliability, particularly if the stages of production are rigidly linked and sufficient storage spaces are not provided. However, excessive storage space increases the initial system costs as …

للكاتبين : Wael M. Elwan, Ahmed F. Abdel Gawad, Salem S. Abdel Aziz and Hesham E. Abdel Hameed Mechanical Power Eng. Dept., Faculty of Eng., Zagazig University, Zagazig 44519, Egypt ABSTRACT In the present work, a CFD model was developed to predict the flow characteristics around four different models of uncommon tall buildings. These models simulate typical actual famous tall …

 للكاتبين : M.R. Ramadan§, A. Assar ¶, M.A.S. Mohamed § , and H.A. Risha¶ §Arab Academy for Science & Technology, Alexandria, Egypt ¶ Engineering Faculty, Tanta University, Egypt. ABSTRACT An industrial product is conventionally considered safe as long as its failure effects are unlikely to endanger solely man life and his properties. FMEA (Failure Modes and Effects Analysis) is an …