1935 yılında İstanbul’da doğdu. Vefa Lisesini bitirdikten sonra, İstanbul Hukuk Fakültesinde okudu (1953-1957). 1957 Fakültesi’nden mezun oldu ve aynı yıl Prof. Dr. Bülent Davran’ın kürsüsüne asistan olarak girdi. Fakültesi’nde konuk öğretim üyesi bulunan Profesör Alfred F. Conard’ın (University of Michigan, School Law, 1957-1958) E. Allan Farnsworth’la (Columbia University Law School) çalıştı....

Abstract This paper concerns a method and test set-up to measure the permeability of plates metal foams sets wire meshes used control flows in fluid filters other flow systems designed yield constant velocity distributions over large cross sections flows. The is based on considerations using Ergun equation describe pressure losses packages mono-dispersed spheres. One correlation suggested for k...

In this work, we develop a self-consistent physical model of bubbles in a gas-solid 1 two-phase flow. Based on PR state equation, and a detailed specific heat ratio equation of bubbles, 2 we self-consistently evaluate kinetic equations of the bubbles on the basis of Ergun equation, 3 thermodynamic equation and kinetic equations. It is found that the specific heat ratio of bubbles in 4 such syst...

-In this paper, the transient forced convective condensing flow of a gas through a packed bed is analyzed. The model developed for this analysis does not employ any local thermal equilibrium assumption between the solid and the fluid phases. Inertial as well as viscous effects are considered in the vapor phase momentum equation by using the Ergun-Forchheimer relation. Thermal charging of the pa...

Typical simulations of packed bed active magnetocaloric regenerators rely on correlations of Nusselt number as a function of Reynolds number. These models are well understood for large ranges of Reynolds number, but experimental data is lacking as Reynolds number approaches zero. Within a typical magnetocaloric refrigeration cycle a zero fluid velocity or dwell condition is present. When a cycl...

In this work, we develop a self-consistent physical model of bubbles in a gas solid two-phase 1 flow. Using the Peng-Robonson state equation and a detailed specific heat ratio equation of bubbles, 2 we obtain the kinetic equations of the bubbles on the basis of the Ergun equation, thermodynamic 3 equations, and kinetic equations. It is found that the specific heat ratio of bubbles in such syste...

Nagihan UĞURLU*, Fatma YÜLEK, Şule Berk ERGUN, Mehmet Doğan AŞIK, Semra IŞIKOĞLU, Emine AKÇAY Department of Ophthalmology, Ankara Atatürk Training and Research Hospital, Yıldırım Beyazıt University, Ankara, Turkey Department of Nanotechnology and Nanomedicine, Institute of Science, Hacettepe University, Ankara, Turkey Department of Biochemistry, Ankara Atatürk Training and Research Hospital, Yı...

In this study, effects of porosity and fiber orientation on the viscous permeability and Forchheimer coefficient of mono-dispersed fibers are investigated. The porous material is represented by a unit cell which is assumed to be repeated throughout the medium. Based on the orientation of the fibers in the space, fibrous media are divided into three categories: 1D, 2D, and 3D structures. Paralle...

A popular equation that is often employed to represent the relationship between pressure loss and fluid flow in fluidized or packed granular beds Ergun equation, which an extension of Darcy’s law. In this paper, method Smoothed Particle Hydrodynamics (SPH) used numerically study field across a rectangular channel partially filled with porous layer both at Representative Elementary Volume (REV) ...