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Self-consolidating concrete(SCC) application is using in the construction projects more and more because of its advantages include high quality and flow under its own weight without any vibration. The rheological properties of SCC are very important that it has a significant effect on mechanical properties and durability. In this study, using a special concrete rheometer that has made for the first time in Iran, rheological parameters of SCC are determined. For performance evaluation and calibration of device, standard oil with determined viscosity by factory is used. Plastic viscosity value obtained by rheometer was equal 2.208 Pa.S and the oil viscosity provided by the factory was 2.219. Therefore results show that Rheometer performance is according with design plan and rheological parameters can be determined well by this device. Also some experimental SCC mixture contains two kinds of powder as filler is made. The calculated values of plastic viscosity and yield stress of these mixtures show that SCC containing limestone powder to 200 kg/m3 indicating the best performance and with increasing the amount of filler to 300 kg/m3 cause to increase yield stress. Self-consolidating concrete(SCC) application is using in the construction projects more and more because of its advantages include high quality and flow under its own weight without any vibration. The rheological properties of SCC are very important that it has a significant effect on mechanical properties and durability. In this study, using a special concrete rheometer that has made for the first time in Iran, rheological parameters of SCC are determined. For performance evaluation and calibration of device, standard oil with determined viscosity by factory is used. Plastic viscosity value obtained by rheometer was equal 2.208 Pa.S and the oil viscosity provided by the factory was 2.219. Therefore results show that Rheometer performance is according with design plan and rheological parameters can be determined well by this device. Also some experimental SCC mixture contains two kinds of powder as filler is made. The calculated values of plastic viscosity and yield stress of these mixtures show that SCC containing limestone powder to 200 kg/m3 indicating the best performance and with increasing the amount of filler to 300 kg/m3 cause to increase yield stress. Self-consolidating concrete(SCC) application is using in the construction projects more and more because of its advantages include high quality and flow under its own weight without any vibration. The rheological properties of SCC are very important that it has a significant effect on mechanical properties and durability. In this study, using a special concrete rheometer that has made for the first time in Iran, rheological parameters of SCC are determined. For performance evaluation and calibration of device, standard oil with determined viscosity by factory is used. Plastic viscosity value obtained by rheometer was equal 2.208 Pa.S and the oil viscosity provided by the factory was 2.219

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Two incompressible SPH numerical solvers, including a modified explicit method and a new implicit method have been developed to simulate the sediment-laden free surface flow problems. Using, consistent discretization schemes, the proposed explicit method improves somewhat the accuracy of the usual explicit ISPH methods. The implicit method additionally guarantees the incompressibility condition completely. In the presented methods, the liquid phase is modeled using Navier-Stokes equations and to predict the non-Newtonian behavior of the sediment phase, the Bingham plastic rheological model is used. The accuracy and capabilities of the developed incompressible SPH methods is first validated in comparison with available experimental and numerical results of a single-phase water-sediment mixture flow generated by unsteady dam break problem. Then, they are applied to simulate an eroding dam break problem with a two-phase flow sediment transport. Comparing the obtained results with the available results in the literature shows that the developed methods particularly the implicit one, are very powerful tools for simulation of the problems including sediment transport induced by violent free surface flow, with interactions between flow and sediment and morphological changes in bed.

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The cavity problem always has been considered as a classic and fundamental problem. Specific materials like Bingham viscoplastic which is sort of Non-newtonian fluids shows resistance in a certain range of stress, calling yield stress, and almost acts like rigid body in this limited area. In case of increase applied stress, flows like fluid. Considering heat transfer in this type of material and investigate it, yield stress and viscosity variations with temperature as in practice we face will not be far-fetched. In the present work the numerical solution of the problem of Bingham material inside lid-driven cavity, investigating fluid flow and heat transfer in view of the changes in material properties has been done and results have shown with change in dimensionless numbers and parameters of Re=10-1000, Bn=1-2000, Pr=0.01-100 and E=5000-50000. In this study, using the finite volume method to discretize governing equations and the use of collocated grid, effect of viscosity and yield stress dependence to temperature compared with independence mode and then distribution of horizontal and vertical components of velocity, yield areas and flow inside cavity, center of vortex and then heat transfer due to the stream lines next to side walls, have been analyzed.