http://scitation.aip.org/ Physics of Fluids: All Topics http://link.aip.org/link/?PHF/25/053303/1&agg=rss Kyongmin Yeo and Martin R. Maxey<br/> We present the lubrication-corrected force-coupling method for the simulation of concentrated suspensions under finite inertia. Suspension dynamics are investigated as a function of the particle-scale Reynolds number Re and the bulk volume fraction phi in a homogeneous linear shear flow, in which Re ... [Phys. Fluids 25, 053303 (2013)] published Tue May 14, 2013. http://link.aip.org/link/?PHF/25/053304/1&agg=rss David H. Richter and Peter P. Sullivan<br/> A point-force model is used to study turbulent momentum transfer in the presence of moderate mass loadings of small (relative to Kolmogorov scales), dense (relative to the carrier phase density) particles. Turbulent Couette flow is simulated via direct numerical simulation, while individual particle ... [Phys. Fluids 25, 053304 (2013)] published Tue May 14, 2013. http://link.aip.org/link/?PHF/25/052102/1&agg=rss Conor P. Schlick, Ivan C. Christov, Paul B. Umbanhowar, Julio M. Ottino, and Richard M. Lueptow<br/> We present an accurate and efficient computational method for solving the advection-diffusion equation in time-periodic chaotic flows. The method uses operator splitting, which allows the advection and diffusion steps to be treated independently. Taking advantage of flow periodicity, the advection s ... [Phys. Fluids 25, 052102 (2013)] published Tue May 14, 2013. http://link.aip.org/link/?PHF/25/053302/1&agg=rss Yuri B. Zudin<br/> In the classical works of Prandtl and Taylor devoted to the analysis of the problem of the rise of a Taylor bubble in a round tube, a solution of the Laplace equation is used, which contains divergent infinite series. The present paper outlines a method for the correct analysis of the mentioned prob ... [Phys. Fluids 25, 053302 (2013)] published Mon May 13, 2013. http://link.aip.org/link/?PHF/25/055101/1&agg=rss B. L. Sawford, S. B. Pope, and P. K. Yeung<br/> We have extended the well-mixed two-particle stochastic models for 3D Gaussian turbulence to n particles, and have performed calculations for clusters of n <= 6 particles. The particle joint motions are Gaussian and are constrained by pair-wise spatial correlations. This neglects non-Gaussian proper ... [Phys. Fluids 25, 055101 (2013)] published Tue May 7, 2013. http://link.aip.org/link/?PHF/25/053602/1&agg=rss M. Norouzi and N. Biglari<br/> In this paper, a full analytical solution for incompressible flow inside the curved ducts with rectangular cross-section is presented for the first time. The perturbation method is applied to solve the governing equations and curvature ratio is considered as the perturbation parameter. The previous ... [Phys. Fluids 25, 053602 (2013)] published Tue May 7, 2013. http://link.aip.org/link/?PHF/25/053301/1&agg=rss Yongchen Song, Ningjun Zhu, Yuechao Zhao, Yu Liu, Lanlan Jiang et al.<br/> CO flooding is one of the most popular secondary or tertiary recoveries for oil production. It is also significant for studying the mechanisms of the two-phase and multiphase flow in porous media. In this study, an experimental study was carried out by using magnetic resonance imaging technique to e ... [Phys. Fluids 25, 053301 (2013)] published Tue May 7, 2013. http://link.aip.org/link/?PHF/25/051901/1&agg=rss J. Yang, C. W. Wolgemuth, and G. Huber<br/> The hydrodynamic forces and torques on a rotating cylinder in a narrow channel are investigated in this paper using lubrication analysis and scaling analysis. To explore the effect of the shape of the gap, three different geometries are considered. The force and torque expressions from lubrication a ... [Phys. Fluids 25, 051901 (2013)] published Tue May 7, 2013. http://link.aip.org/link/?PHF/25/054104/1&agg=rss Salvatore Rionero<br/> Either for its great geophysical relevance or the frequent occurrence of porous materials in real life, research on convective-diffusive fluid motions in porous horizontal layers has a notable relevance, which is increasing with the number of salts dissolved in the fluid. In the present paper, porou ... [Phys. Fluids 25, 054104 (2013)] published Tue May 7, 2013. http://link.aip.org/link/?PHF/25/054102/1&agg=rss Hui Zhao, Hai-Feng Liu, Jian-Liang Xu, Wei-Feng Li, and Kuang-Fei Lin<br/> The situation of liquid drop bag-stamen breakup in a continuous air jet flow is investigated by a high speed camera. Test liquids include water, ethanol, and various glycerol mixtures. First, the morphology of bag-stamen breakup is observed and analyzed. The bag-stamen breakup range is found to be i ... [Phys. Fluids 25, 054102 (2013)] published Fri May 3, 2013. http://link.aip.org/link/?PHF/25/054103/1&agg=rss I. Yildirim, C. C. M. Rindt, and A. A. van Steenhoven<br/> The 3D transition of the flow behind a circular cylinder with a near-wake wire disturbance has been investigated experimentally. The flow is oriented horizontally and the wire is positioned in the upper half of the wake. We performed flow visualization and particle image velocimetry experiments to i ... [Phys. Fluids 25, 054103 (2013)] published Fri May 3, 2013. http://link.aip.org/link/?PHF/25/052101/1&agg=rss M. Gross, I. Steinbach, D. Raabe, and F. Varnik<br/> The coalescence of two resting liquid droplets in a saturated vapor phase is investigated by Lattice Boltzmann simulations in two and three dimensions. We find that, in the viscous regime, the bridge radius obeys a t-scaling law in time with the characteristic time scale given by the viscous time. O ... [Phys. Fluids 25, 052101 (2013)] published Thu May 2, 2013. http://link.aip.org/link/?PHF/25/054101/1&agg=rss Dan Yang, Bjornar Pettersen, Helge I. Andersson, and Vagesh D. Narasimhamurthy<br/> Three-dimensional wake instabilities in the form of oblique shedding and vortex dislocations in the flow past an inclined flat plate of angle of attack 20 degrees and Reynolds number 1000 have been reported earlier [D. Yang, B. Pettersen, H. I. Andersson, and V. D. Narasimhamurthy, Phys. Fluids 24, ... [Phys. Fluids 25, 054101 (2013)] published Wed May 1, 2013. http://link.aip.org/link/?PHF/25/052002/1&agg=rss Chengzhen Sun<!--orlang--> (&#x5B59;&#x6210;&#x73CD;)<!--orlang-->, Bofeng Bai<!--orlang--> (&#x767D;&#x535A;&#x5CF0;)<!--orlang-->, Wen-Qiang Lu<!--orlang--> (&#x5362;&#x6587;&#x5F3A;)<!--orlang-->, and Jie Liu<!--orlang--> (&#x5218;&#x6377;)<!--orlang--><br/> Effective thermal conductivity (ETC) of water-based silicon dioxide nanofluids in shear flow fields (flow shear rate range was 0820 1/s) was measured using a rotating Couette apparatus. The results show that the ETC of the nanofluids in shear flow fields is significantly higher than that in static s ... [Phys. Fluids 25, 052002 (2013)] published Wed May 1, 2013. http://link.aip.org/link/?PHF/25/052001/1&agg=rss Henning Struchtrup and Manuel Torrilhon<br/> The regularized 13 moment equations of rarefied gas dynamics are derived for a monatomic hard sphere gas in the linear regime. The equations are based on an extended Grad-type moment system, which is systematically reduced by means of the Order of Magnitude Method [H. Struchtrup, Stable transport eq ... [Phys. Fluids 25, 052001 (2013)] published Wed May 1, 2013. http://link.aip.org/link/?PHF/25/043106/1&agg=rss Shing Bor Chen<br/> Wall effect on the hydrodynamic interaction among particles is important for their transport in many applications such as filtration. We investigate an axisymmetric creeping flow caused by one or two spherical particles migrating towards a circular orifice or disk. A boundary integral/element method ... [Phys. Fluids 25, 043106 (2013)] published Tue Apr 30, 2013. http://link.aip.org/link/?PHF/25/046602/1&agg=rss D. Sous, J. Sommeria, and D. Boyer<br/> We use spin-up/spin-down laboratory experiments to study the neutrally stratified Ekman boundary layer. The experiments are performed in the 13 m diameter, 1 m deep Coriolis rotating tank of the LEGI in Grenoble, France. A global flow rotation is produced by an initial change in the tank rotation sp ... [Phys. Fluids 25, 046602 (2013)] published Mon Apr 29, 2013. http://link.aip.org/link/?PHF/25/045103/1&agg=rss Jae Hwa Lee and Hyung Jin Sung<br/> A direct numerical simulation of a fully developed turbulent pipe flow was performed to investigate the similarities and differences of very-large-scale motions (VLSMs) to those of turbulent boundary layer (TBL) flows. The Reynolds number was set to Re = 35 000, and the computational domain was 30 p ... [Phys. Fluids 25, 045103 (2013)] published Mon Apr 29, 2013. http://link.aip.org/link/?PHF/25/043306/1&agg=rss L. Girolami, A. Wachs, and G. Vinay<br/> In this paper, we used a three-dimensional discrete-grain model (Grains3D) to explore the flow and deposit characteristics of unchannelized dam-break collapses. A series of numerical experiments was performed to predict the behaviour of different granular columns (characterized by different initial ... [Phys. Fluids 25, 043306 (2013)] published Mon Apr 29, 2013. http://link.aip.org/link/?PHF/25/041902/1&agg=rss Promode R. Bandyopadhyay and Henry A. Leinhos<br/> Underwater animals propel themselves by flapping their pectoral and caudal fins in a narrow range of frequencies, given by Strouhal number St, to produce transitional vortex jets (St is generally expressed non-dimensionally as the product of flapping frequency and stroke (arc) length divided by forw ... [Phys. Fluids 25, 041902 (2013)] published Mon Apr 29, 2013. http://link.aip.org/link/?PHF/25/042002/1&agg=rss Gowrishankar Seshadri and Tobias Baier<br/> It has been suggested that superhydrophobic surfaces, due to the presence of a no-shear zone, can greatly enhance transport of surface charges, leading to a considerable increase in the streaming potential. This could find potential use in micro-energy harvesting devices. In this paper, we show usin ... [Phys. Fluids 25, 042002 (2013)] published Mon Apr 29, 2013. http://link.aip.org/link/?PHF/25/041702/1&agg=rss M. M. Bandi, A. Concha, R. Wood, and L. Mahadevan<br/> We consider the dynamics of a pendulum made of a rigid ring attached to an elastic filament immersed in a flowing soap film. The system shows an oscillatory instability whose onset is a function of the flow speed, length of the supporting string, the ring mass, and ring radius. We characterize this ... [Phys. Fluids 25, 041702 (2013)] published Mon Apr 29, 2013. http://link.aip.org/link/?PHF/25/049103/1&agg=rss Gabriele Orsini and Vincenzo Tricoli<br/> Abstract not available. [Phys. Fluids 25, 049103 (2013)] published Thu Apr 25, 2013. http://link.aip.org/link/?PHF/25/049102/1&agg=rss Ory Schnitzer and Ehud Yariv<br/> Abstract not available. [Phys. Fluids 25, 049102 (2013)] published Thu Apr 25, 2013. http://link.aip.org/link/?PHF/25/045102/1&agg=rss M. Ben Meftah and M. Mossa<br/> This paper describes a theoretical approach of turbulent flow in an infinite square array of emergent cylinders distributed uniformly along a channel bottom. Laboratory experiments were carried out to investigate the flow velocity characteristics in order to confirm this theoretical approach. A mode ... [Phys. Fluids 25, 045102 (2013)] published Thu Apr 25, 2013. http://link.aip.org/link/?PHF/25/044106/1&agg=rss J. R. Ristorcelli, A. A. Gowardhan, and F. F. Grinstein<br/> A single parameter numerical study of the evolution of the multimode planar Richtmyer-Meshkov instability (RMI) in a shocked/reshocked (air-SF, Atwood number A = 0.67) configuration with a Mach number Ma = 1.5 shock is carried out. Our results demonstrate that the initial material interface morpholo ... [Phys. Fluids 25, 044106 (2013)] published Thu Apr 25, 2013. http://link.aip.org/link/?PHF/25/043305/1&agg=rss Zhaosheng Yu, Tenghu Wu, Xueming Shao, and Jianzhong Lin<br/> The effects of large neutrally buoyant particles on the flow instability and turbulence transition in pipe flow are investigated with the fictitious domain method. The periodic boundary condition is introduced in the streamwise direction. The work comprises two parts. In the first part, the pressure ... [Phys. Fluids 25, 043305 (2013)] published Thu Apr 25, 2013. http://link.aip.org/link/?PHF/25/044105/1&agg=rss Philip C. Myint and Abbas Firoozabadi<br/> We perform a linear stability analysis to examine the onset of buoyancy-driven convection relevant to subsurface carbon dioxide sequestration in confined, porous Cartesian and cylindrical domains. Our work amends the analysis in an earlier study on cylindrical geometries. We consider Cartesian geome ... [Phys. Fluids 25, 044105 (2013)] published Thu Apr 25, 2013. http://link.aip.org/link/?PHF/25/042105/1&agg=rss N. Rojas, M. Argentina, and E. Tirapegui<br/> This document presents theoretical and numerical results of the circular hydraulic jump derived from the inertial lubrication theory [N. O. Rojas, M. Argentina, E. Cerda, and E. Tirapegui, Phys. Rev. Lett. 104, 187801-1187801-4 (2010)]. In particular, a correction for the hydraulic jump scaling is o ... [Phys. Fluids 25, 042105 (2013)] published Tue Apr 23, 2013. http://link.aip.org/link/?PHF/25/042104/1&agg=rss C. Planchette, A.-L. Biance, O. Pitois, and E. Lorenceau<br/> Armored interfaces refer to fluid interfaces on which a compact monolayer of particles is adsorbed. In this paper, we probe their robustness under impact. For such an investigation, the impact of a drop (covered or not by particles) on a flat armored interface is considered. Two regimes are observed ... [Phys. Fluids 25, 042104 (2013)] published Tue Apr 23, 2013. http://link.aip.org/link/?PHF/25/046101/1&agg=rss Rei Tatsumi and Ryoichi Yamamoto<br/> Hydrodynamic interactions are transmitted by viscous diffusion and sound propagation, and the temporal evolution of hydrodynamic interactions by both mechanisms is studied using direct numerical simulation in this paper. The hydrodynamic interactions for a system of two particles in a fluid are esti ... [Phys. Fluids 25, 046101 (2013)] published Tue Apr 23, 2013. http://link.aip.org/link/?PHF/25/044104/1&agg=rss Jianhong Kang, Xi Chen, Ceji Fu, and Wenchang Tan<br/> Thermal convection driven by centrifugal buoyancy in a rotating porous cylindrical annulus with conical end boundaries is investigated. The Darcy-Brinkman model with the addition of the time-derivative and Coriolis terms in a rotating frame of reference is applied to characterize the flow in porous ... [Phys. Fluids 25, 044104 (2013)] published Tue Apr 23, 2013. http://link.aip.org/link/?PHF/25/042103/1&agg=rss Rene I. P. Sedmik, Armando F. Borghesani, Kier Heeck, and Davide Iannuzzi<br/> A customized atomic force microscope has been utilized in dynamic mode to measure hydrodynamic forces between a sphere and a flat plate, both coated with gold. In order to study the influence of the mean free path on slippage without systematic errors due to varying surface properties, all data have ... [Phys. Fluids 25, 042103 (2013)] published Tue Apr 23, 2013. http://link.aip.org/link/?PHF/25/043304/1&agg=rss Vishal A. Patil and James A. Liburdy<br/> An experimental study was undertaken to better understand the turbulent flow characteristics within a randomly packed porous bed. A relatively low aspect ratio bed (bed width to spherical solid phase particle diameter of 4.67) with the fluid phase refractive index matched to that of the solid phase ... [Phys. Fluids 25, 043304 (2013)] published Tue Apr 23, 2013. http://link.aip.org/link/?PHF/25/041901/1&agg=rss Kourosh Shoele and Qiang Zhu<br/> The deformability of insect wings is associated with the embedded skeleton (venation). In this paper, the aerodynamic performance of wings with nonuniform flexibility is computationally investigated. By using a two-dimensional rendition, the underlying veins are modeled as springs, and the membrane ... [Phys. Fluids 25, 041901 (2013)] published Tue Apr 23, 2013.