We incorporate hydrodynamic interactions in a structure-based model of ubiquitin and demonstrate that the hydrodynamic coupling may reduce the peak force when stretching the protein at constant speed, especially at larger speeds. Hydrodynamic interactions are also shown to facilitate unfolding at constant force and inhibit stretching by fluid flows. (Some figures in this article are in colour o...

efficient mode shape extraction of fluid-structure systems is of particular interest in engineering. an efficient modified version of unsymmetric lanczos method is proposed in this paper. the original unsymmetric lanczos method was applied to general form of unsymmetric matrices, while the proposed method is developed particularly for the fluid-structure matrices. the method provides us with si...

We present a general simulation approach for incompressible fluid–structure interactions in fully Eulerian framework using the reference map technique. The is suitable modeling one or more rigid finitely deformable objects soft with components interacting fluid and each other. It also extended to control kinematics of structures fluids. model based on our previous fluid–soft solver [Rycroft et ...

Multi phase fluids are common in energy-related geotechnical problems, including gaswater, gas-oil, ice-water, hydrate-water, and oil-water fluid conditions. The generalization of classical unsaturated soil mechanics concepts to energy geotechnology requires physical understanding of surface tension, contact angle, capillary pressure, solubility and nucleation. Eventually, these pore-level proc...

In this work, we introduce a novel data-driven formulation, the Koopman-Linearly-Time-Invariant (Koopman-LTI) analysis, for analyzing Fluid-Structure Interactions (FSI). An implementation of Koopman-LTI on subcritical free-shear flow over prism at Re=22,000 corroborated configuration-wise universal Koopman system, which approximated configuration's nonlinear dynamics with stellar accuracy. The ...

The phase behavior of colloidal particles embedded in a binary fluid is influenced by wetting layers surrounding each particle. The free energy of the fluid film depends on its morphology, i.e., on size, shape and connectivity. Under rather natural assumptions a general expression for the Hamiltonian can be given extending the model of hard spheres to partially penetrable shapes including energ...

The periodic wake flow past a bluff body immersed in moving fluid can be synchronized to the harmonic vibrations of body. A low-dimensional, phase-based analysis has been adopted uncover theoretical conditions necessary for synchronization between and oscillations. present methodology allows modifying transient features unsteady flows, thereby enabling online control aerodynamic forces on flyer...

The impact of impenetrable obstacles on the energetics and equilibrium structure of strongly repulsive directed polymers is investigated. As a result of the strong interactions, regions of severe polymer depletion and excess are found in the vicinity of the obstacle, and the associated free-energy cost is found to scale quadratically with the average polymer density. The polymer-polymer interac...