THE PHILOSOPHY OF CONTEMPORARY EDUCATION AND ITS IMPLICATIONS FOR THE DEVELOPMENT OF ISLAMIC EDUCATION

The title of this research is Theoretical Debate over the Philosophical Roots of Contemporary Education and Its Implications for the Development of Islamic Education. The purpose is to disentangle, to explore and to discuss the foundations of theoretical roots of educational philosophy and its relational consequences with Islamic education. The issues raised are: 1). How is the philosophical foundation of education and its relationship to philosophy and education? 2). What are the Philosophical Roots of Educational Theory and Its Implications for Curriculum, Teaching and Learning? 3). What are the implications for the development of Islamic education? The type of research is Library Research which uses philosophical and pedagogical approach, with descriptive method. The findings of this study are: a) the study of the key philosophical ideas that influence thought and development of education are aspects of metaphysics, epistemology and axiology. Without these three philosophical foundations, science and its various disciplines will fail; b) the relationship between philosophy and education are like two sides of one coin that cannot be separated, both give and take in the context of mutualism. So the existence of philosophy in education is a necessity; c) The theoretical debate over the roots of the philosophy of education requires the development of Islamic education.

Numerical Analysis of Flow Charateristics of Multiple Cylinders in Different Staggered Arrangements Using Lattice Boltzmann Method

Computational fluid dynamics (CFD) has become a powerful tool for solving complex fluid flow problems in the last few decades. The relation between the flow regime transformation and its corresponding hydrodynamics forces on the staggered cylinders has not been studied at low Reynolds number (Re), both experimentally and numerically. In order to do so, numerical investigations are conducted to study the unsteady flow past square cylinders arranged in staggered configurations. Six distinct staggered geometries are constructed for which simulations are carried out by using two dimensional single relaxation time lattice Boltzmann method (SRT-LBM). The combined effect of Re and separation ratio (g*) on the flow physics and hydrodynamics forces is systematically studied. For this study, physical parameters of practical importance are chosen in the range of 20 ≤ Re ≤ 160 and 0 ≤ g* ≤ 7. The SRT-LBM was validated by comparing the unsteady flow around an isolated cylinder and two cylinders with available experimental and numerical data. Results are presented in the form of instantaneous vorticity contour visualization, time-histories of drag and lift forces, power spectra of lift signals and hydrodynamic forces. For all chosen geometries critical spacing ratio and Reynolds number are identified. It is observed that with increase in spacing ratios between the cylinders the critical Reynolds number for the onset of vortex shedding phenomena also increases. Different flow regimes are observed for different staggered geometries. Chaotic flow is one of the common flow regime. The transformation of the flow occurs due to the interaction between primary and secondary frequencies; the latter frequency strongly depends on the spacing ratio between cylinders. The effect of jet flows on the wake structure mechanism (shed vortices) behind the cylinders is studied in detail. The results show that both Re and g* have a significant effect on the hydrodynamic forces. The flow regime maps for varying Re and g* are proposed for all considered problems. All these results, most of which have been obtained for the very first time, are of fundamental significance in engineering applications.