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| 1 | Parametric study on smoothed particle hydrodynamics for accurate determination of drag coefficient for a circular cylinder显示文摘Simulations of two-dimensional(2D) flow past a circular cylinder with the smoothed particle hydrodynamics(SPH) method were conducted in order to accurately determine the drag coefficient. The fluid was modeled as a viscous liquid with weak compressibility. Boundary conditions,such as a no-slip solid wall, inflow and outflow, and periodic boundaries, were employed to resemble the physical problem. A sensitivity analysis, which has been rarely addressed in previous studies, was conducted on several SPH parameters. Hence, the effects of distinct parameters, such as the kernel choices and the domain dimensions, were investigated with the goal of obtaining highly accurate results. A range of Reynolds numbers(1-500) was simulated, and the results were compared with existing experimental data. It was observed that the domain dimensions and the resolution of SPH particles, in comparison to the obstacle size, affected the obtained drag coefficient significantly. Other parameters, such as the background pressure, influenced the transient condition, but did not influence the steady state at which the drag coefficient was determined. | Maziar Gholami Korzani Sergio A. Galindo-Torres Alexander Scheuermann David J. Williams | 2017 | Water Science and Engineering2017，10，2： | 2 |
| 2 | Seismic performance of flange plate connections between steel beams and box columns显示文摘 | M. Gholami A. Deylami M. Tehranizadeh | 2013 | Journal of Constructional Steel Research2013，，： | 2 |
| 3 | Postbuckling analysis of functionally graded graphene platelet-reinforced polymer composite cylindrical shells using an analytical solution approach显示文摘An analytical approach is proposed to study the postbuckling of circular cylindrical shells subject to axial compression and lateral pressure made of functionally graded graphene platelet-reinforced polymer composite (FG-GPL-RPC). The governing equations are obtained in the context of the classical Donnell shell theory by the von K′arm′an nonlinear relations. Then, based on the Ritz energy method, an analytical solution approach is used to trace the nonlinear postbuckling path of the shell. The effects of several parameters such as the weight fraction of the graphene platelet (GPL), the geometrical properties, and distribution patterns of the GPL on the postbuckling characteristics of the FG-GPL-RPC shell are analyzed. | S. BLOORIYAN R. ANSARI A. DARVIZEH R. GHOLAMI H. ROUHI | 2019 | Applied Mathematics and Mechanics(English Edition)2019，40，7： | 2 |
| 4 | Comparison of Optimal Place and Size of TCSC and SVC for Maximum Available Transfer Capability显示文摘 | M. Modiri A. Gholami A. Kazemi | 2010 | Journal of Energy and Power Engineering2010，4，3： | 0 |
| 5 | Ignition Conditions for Simulated Fuel Pellets in Degenerate Plasma显示文摘A high-density, low-temperature plasma can be obtained during the compression phase in inertial confinement fusion. When high density and low temperature are reached in the plasma in the fast ignition approach, the plasma electrons can be degenerate. The electronic stopping of a slow ion is smaller than that given by the classical formula, because some transitions between the electron states are forbidden. In this case, bremsstrahlung emission is strongly suppressed and the ignition temperature becomes lower than that in classical plasma. The equations that predict the behavior of these plasmas are different from the classical ones, and this is the main factor in the process of decreasing the ignition temperature of the plasma. In this work, physical conditions of ignition are studied by calculating the effect of radiation loss on the ignition temperature for a simulated fuel pellet, (D/T x / 3 He y ), in degenerate plasma. In fast ignition, the energy needed for obtaining high densities is minimized and the gain can be increased considerably. | M. MAHDAVI A. GHOLAMI | 2013 | Plasma Science and Technology2013，15，4： | 0 |
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