How to Set Up the Fluidity Parameter Ī³ of the Hoek-Brown Model with the Softening Model In the framework of numerical analyses of geomaterials, one of the classical problems for modeling the development of shear bands is the pathological mesh-dependence...
In recent years, engine manufacturers have strived to increase engine efficiency to reduce fuel consumption and emissions, for competitiveness and to meet strict government regulations. These advancements have led to highly stressed engine parts, in particular the crankshaft hydrodynamic bearings.
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The animation is a simulation of the flow field when one car passes another in a tunnel. The simulation demonstrates the use of the sliding mesh interface feature, which will be available in version 8.2 of ADINA.
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Narrow gaps are present in rotating and reciprocating machinery such as turbines, compressors, pistons, and gear pumps. These narrow gaps are often essential for the operation of the machinery, as leakage of the working fluid through the narrow gap provides...
We present an analysis of turbulent flow in a straight pipe depicted in the animation and pressure drop diagram above. Although this problem can be solved more efficiently using 2-D axisymmetric elements, we used 3-D elements as a demonstration. The...
In a previous Brief, we presented some structural analysis results of the superconducting coil of the Wendelstein 7-X, the world’s largest plasma fusion experimental device of the stellarator family.
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Each time a neutrophil (cell) pass through the human lungs, it typically crosses over 50 capillary segments. The transit time of the neutrophil depends on its deformability, surface tension, pressure drop across the capillary, and the geometry of the capillary.
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In civil engineering design and analysis, the effects of fluids on the motion of structures can be very important. This is particularly true in seismic analysis of liquid storage tanks. In this class of problems, the fluid and tank motions...
The ADINA-TMC (Thermo-Mechanical Coupling) program is a powerful tool for fully coupled thermo-mechanical analysis of problems in which the thermal solution affects the structural solution and the structural solution in turn affects the thermal solution. ADINA-TMC takes into account such effects...