تکفیری جماعت داعش: افکارو اثرات: تجزیاتی مطالعہ

Since the past few years, muslims all over the world are being brutally accused of severe extremism. Many muslims now a days condemn terrorism and extremism and are not willing to connect these terms with the religion Islam. However there are a few who are in favour of these things. Terrorism is basically caused by a number of different acts of brutality. Its actually a chain reaction caused by the conspiracies against Islam, double standards of different super powers and injustice to the convicted and oppressed. Killings of the innocent and unarmed in the name of aggression is some thing which is totally against the Islamic teachings. Things become more complicated and dangerous when such acts of vandalism are done in the name of religion. Although many goals of ISIS are Islam based, however these very goals are achieved through non-Islamic ways. They feel no shame and go against all the ethics and moral values to reach their goals. Hence causing much more damage to their own muslim fellows. Even the cemetries are no more safe. They kill their opponents in the worst possible way and disrespect the dead bodies by kicking and hanging them to the trees. If this situation persists, it is inevitable that ISIS might replace the Halaku Khan and Genghiz Khan is brutality.

Investigation of Various Sediment and Flow Parameters upon Three Dimensional Flow Using Numerical Model

The aim of this research work was to investigate and increase the understanding of three dimensional flow behavior under changing conditions of flow and sediments. The goal was achieved by using a 3D Computational Fluid Dynamics model FLUENT. The geometry selected for this study is that of a meandering compound channel. The parameters which were changed in this research work include the width of floodplain along with main channel width, overbank flow depth, incoming discharge, bed slope of the main channel and floodplains and roughness of the channel and floodplains. The research work was conducted by using different turbulence models. Among them are standard k - e , Re-normalization Group (RNG) theory based k - e and k - w turbulence models. These three models were applied for one case. Once the capability of k - e model was established after comparison with results of other models, then only k - e was used in the remaining part of the work. The data obtained from a physical model study in the laboratory was used for the validation of simulated results. The validation was done through a comparison of observed and calculated values of depth averaged velocities, total discharge at a section & point velocities. After validation, the CFD model was used to predict and investigate those aspects of flow which were difficult to get through experiments and for which experimentation was not conducted in the laboratory. These aspects include turbulence intensity, turbulent kinetic energy, pressure distribution on different cross sections of the channel and surface velocity magnitudes. As far as the sediments study is concerned, the Lagrangian particle tracking technique was used to predict the changes in bed levels at apex of the meander wavelength. Sediment particles with different diameters were used for this purpose. A total of eight flow cases were considered for the study of flow field. Each case varies from the other on the basis of (i) geometry or (ii) bed slope or (iii) depth of overbank flow or a combination of these. This work also proved the capability of standard k - e turbulence closure models in prediction of 3D overbank flows. Keywords: Sediment transport, CFD modeling, Flood flows, Numerical techniques, Turbulent kinetic energy.