للكاتبين : M. M. I. Hammouda1 , A. S. Fayed2, I.G. El-Batanony1, M. H. Ata3, and H. E. M. Sallam2 1 Mechanical Eng. Dept., University of Engineering and Technology, Taxila, Pakistan 2 Materials Eng. Dept., Faculty of Eng., Zagazig University, Zagazig, Egypt 3 Mechanical Eng. Dept., Faculty of Eng., Al-Azhar University, Cairo, Egypt ABSTRACT An elastic two dimensional finite element …

للكاتب :  A. R. El-SHAMY Mech. Eng. Dept., Faculty of Eng. (Shoubra), Benha Univ., 108 Shoubra St., Cairo, Egypt ABSTRACT Experiments were conducted to investigate the thermal performance of a turbulent flow of air in a vertical rectangular duct filled with a porous medium (packed or fluidized beds). The test section was a vertical rectangular duct of cross section 360 …

للكاتبين : A. R. EL-SHAMY*, R. Y. SAKR*, N. S. BERBISH*, AND M. H. MESSRA** *Mech. Eng. Dept., Shoubra Faculty of Eng., Benha Univ., Egypt **M.Sc. Student, Mech. Eng. Dept., Shoubra Faculty of Eng., Benha Univ., Egypt ABSTRACT The aim of the present work is an experimental and numerical study of forced convection heat transfer from an inclined heated plate …

للكاتبين : 1-A.EL.BADAWY 2- W.EL.ARNA'OUTY Department Of Mechaincal Engineering Al Azhar University, Cairo, Egypt ABSTRACT: The application of the Herschel-Quincke (HQ) tube concept as a noise reduction device is employed to reduce the noise of an industrial burner-combustor test rig. A computational technique is developed to design the HQ tube dimensions to control the sound field in such system. Transmission …

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 …