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RISDifferential Equation-Based Specification of Turbulence Integral Length Scales for Cavity Flows
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new modeling approach has been developed that explicitly accounts for expected turbulent eddy length scales in cavity zones. It uses a hybrid approach with Poisson and Hamilton–Jacobi differential equations. These are ...
Plastic-Damage Model for Interfaces in Cementitious Materials
Publisher: American Society of Civil Engineers
Abstract: A new constitutive model for interfaces in cementitious materials is presented. The model uses a plastic-damage formulation in which the undamaged material component is assumed to remain elastic and plasticity is applied ...
Tripartite Cohesive Crack Model
Publisher: American Society of Civil Engineers
Abstract: A new multicomponent cohesive crack model for concrete is presented. The model, which is directly applicable to interface finite elements, has three main components termed undamaged, bridging, and fully debonded. The ...
Enhanced Delayed Detached Eddy Simulation for Cavities and Labyrinth Seals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A range of popular hybrid Reynolds-averaged Navier–Stokes -large eddy simulation (RANS-LES) methods are tested for a cavity and two labyrinth seal geometries using an in-house high-order computational fluid dynamics (CFD) ...
The Numerical Modeling of Surface Wave Propagation in the Surf Zone
Publisher: American Meteorological Society
Abstract: A numerical model is used to simulate the shoreward propagation of a train of periodic borelike surface disturbances in the surf zone over a sloping beach. Turbulence production is included both in the shear layer at the ...
Experimental Studies and Comparison of Centrifugally Cast Cu/SiC and Cu/Si3N4 Functionally Graded Composites on Mechanical and Wear Behavior
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The objective of this research work is to synthesize functionally graded Cu-11Ni-4Si/10 wt % SiC, Cu-11Ni-4Si/10 wt % Si3N4 composite using horizontal centrifugal casting method and to analyze its mechanical and adhesive ...
A 3D Coupled Finite-Element Model for Simulating Mechanical Regain in Self-Healing Cementitious Materials
Publisher: American Society of Civil Engineers
Abstract: Interest in self-healing techniques that can enhance the performance of cementitious materials has been ever increasing over the past two decades. Alongside the experimental developments, a great deal of progress has been ...