POF: Special Topics, Award, and Invited Papers http://scitation.aip.org/ POF: Special Topics, Award, and Invited Papers Developed quantum turbulence and its decay http://link.aip.org/link/?PHF/24/011301/1&agg=rss L. Skrbek and K. R. Sreenivasan<br/> This article is primarily a review of our knowledge of the correspondence between classical and quantum turbulence, though it is interspersed with a few new interpretations. This review is deemed timely because recent work in quantum turbulence promises to provide a better understanding of aspects o ... [Phys. Fluids 24, 011301 (2012)] published Tue Jan 31, 2012. Dynamics of suspended colloidal particles near a wall: Implications for interfacial particle velocimetry http://link.aip.org/link/?PHF/23/111301/1&agg=rss M. Yoda and Y. Kazoe<br/> Interfacial transport due to surface forces is significant in many microfluidic devices with their relatively large surface areas and small volumes. Recently, velocimetry methods where evanescent waves illuminate fluorescent particles less than 1 [mu]m in radius have been used to obtain fluid veloci ... [Phys. Fluids 23, 111301 (2011)] published Tue Nov 29, 2011. Patterns and dynamics in transitional plane Couette flow http://link.aip.org/link/?PHF/23/041301/1&agg=rss Laurette S. Tuckerman and Dwight Barkley<br/> Near transition, plane Couette flow takes the form of large-scale, oblique, and statistically steady alternating bands of turbulent and laminar flow. Properties of these flows are investigated using direct numerical simulation in a tilted computational domain. Four regimesuniform, intermittent, peri ... [Phys. Fluids 23, 041301 (2011)] published Tue Apr 19, 2011. Sonine approximation for collisional moments of granular gases of inelastic rough spheres http://link.aip.org/link/?PHF/23/030604/1&agg=rss Andres Santos, Gilberto M. Kremer, and Marcelo dos Santos<br/> We consider a dilute granular gas of hard spheres colliding inelastically with coefficients of normal and tangential restitution alpha and beta, respectively. The basic quantities characterizing the distribution function f(v,omega) of linear (v) and angular (omega) velocities are the second-degree m ... [Phys. Fluids 23, 030604 (2011)] published Fri Mar 18, 2011. Performance analysis of the continuous trace gas preconcentrator http://link.aip.org/link/?PHF/23/030605/1&agg=rss E. P. Muntz and Y.-L. Han<br/> In gas molecule detection systems, certain trace gas components can go undetected. This is due to ultralow yet dangerous concentrations combined with limitations of the detection methods. To remedy this problem, a preconcentrator can be included in a system to increase the trace gas concentrations, ... [Phys. Fluids 23, 030605 (2011)] published Fri Mar 18, 2011. Low-noise Monte Carlo simulation of the variable hard sphere gas http://link.aip.org/link/?PHF/23/030606/1&agg=rss Gregg A. Radtke, Nicolas G. Hadjiconstantinou, and Wolfgang Wagner<br/> We present an efficient particle simulation method for the Boltzmann transport equation based on the low-variance deviational simulation Monte Carlo approach to the variable-hard-sphere gas. The proposed method exhibits drastically reduced statistical uncertainty for low-signal problems compared to ... [Phys. Fluids 23, 030606 (2011)] published Fri Mar 18, 2011. Shock wave structure for generalized Burnett equations http://link.aip.org/link/?PHF/23/030607/1&agg=rss A. V. Bobylev, M. Bisi, M. P. Cassinari, and G. Spiga<br/> Stationary shock wave solutions for the generalized Burnett equations (GBE) [A. V. Bobylev, Generalized Burnett hydrodynamics, J. Stat. Phys. 132, 569 (2008)] are studied. Based on the results of Bisi et al. [Qualitative analysis of the generalized Burnett equations and applications to half-space pr ... [Phys. Fluids 23, 030607 (2011)] published Fri Mar 18, 2011. Rarefied gas dynamics on a planetary scale http://link.aip.org/link/?PHF/23/030608/1&agg=rss D. B. Goldstein and P. L. Varghese<br/> Large scale rarefied gas dynamic effects are found in the tenuous atmospheres of several planets and satellites in our Solar System. These phenomena range from thickened shock structures in supersonic flows, to strong thermal nonequilibrium in a stratified atmosphere, to thermal and velocity slip at ... [Phys. Fluids 23, 030608 (2011)] published Fri Mar 18, 2011. Boundary conditions at the vapor-liquid interface http://link.aip.org/link/?PHF/23/030609/1&agg=rss Aldo Frezzotti<br/> The paper aims at presenting a review of kinetic theory applications to evaporation condensation problems. The main results for monatomic and polyatomic gases and mixtures are described. The role of boundary conditions at the vapor-liquid interface is discussed and a description of molecular dynamic ... [Phys. Fluids 23, 030609 (2011)] published Fri Mar 18, 2011. Preface to Special Topic: A Tribute to Carlo Cercignani (19392010) http://link.aip.org/link/?PHF/23/030501/1&agg=rss Yoshio Sone<br/> Abstract not available. [Phys. Fluids 23, 030501 (2011)] published Fri Mar 18, 2011. Stochastic models in kinetic theory http://link.aip.org/link/?PHF/23/030602/1&agg=rss Wolfgang Wagner<br/> The paper is concerned with some aspects of stochastic modeling in kinetic theory. First, an overview of the role of particle models with random interactions is given. These models are important both in the context of foundations of kinetic theory and for the design of numerical algorithms in variou ... [Phys. Fluids 23, 030602 (2011)] published Fri Mar 18, 2011. Steady flows of a highly rarefied gas induced by nonuniform wall temperature http://link.aip.org/link/?PHF/23/030603/1&agg=rss Shingo Kosuge, Kazuo Aoki, Shigeru Takata, Ryosuke Hattori, and Daisuke Sakai<br/> Steady behavior of a rarefied gas between parallel plates with sinusoidal temperature distribution is investigated on the basis of the Boltzmann equation. The CercignaniLampis (CL) model or the Lord model for diffuse scattering with incomplete energy accommodation is adopted as the boundary conditio ... [Phys. Fluids 23, 030603 (2011)] published Fri Mar 18, 2011. Investigation of the ellipsoidal-statistical BhatnagarGrossKrook kinetic model applied to gas-phase transport of heat and tangential momentum between parallel walls http://link.aip.org/link/?PHF/23/030601/1&agg=rss M. A. Gallis and J. R. Torczynski<br/> The ellipsoidal-statistical BhatnagarGrossKrook (ES-BGK) kinetic model is investigated for steady gas-phase transport of heat, tangential momentum, and mass between parallel walls (i.e., Fourier, Couette, and Fickian flows). This investigation extends the original study of Cercignani and Tironi, who ... [Phys. Fluids 23, 030601 (2011)] published Tue Mar 1, 2011. Respiratory fluid mechanics http://link.aip.org/link/?PHF/23/021301/1&agg=rss James B. Grotberg<br/> This article covers several aspects of respiratory fluid mechanics that have been actively investigated by our group over the years. For the most part, the topics involve two-phase flows in the respiratory system with applications to normal and diseased lungs, as well as therapeutic interventions. S ... [Phys. Fluids 23, 021301 (2011)] published Fri Feb 18, 2011. Simple models of turbulent flows http://link.aip.org/link/?PHF/23/011301/1&agg=rss Stephen B. Pope<br/> Stochastic Lagrangian models provide a simple and direct way to model turbulent flows and the processes that occur within them. This paper provides an introduction to this approach, aimed at the nonspecialist, and providing some historical perspective. Basic models for the Lagrangian velocity (i.e., ... [Phys. Fluids 23, 011301 (2011)] published Tue Jan 18, 2011. Flow, turbulence, and pollutant dispersion in urban atmospheres http://link.aip.org/link/?PHF/22/051301/1&agg=rss H. J. S. Fernando, D. Zajic, S. Di Sabatino, R. Dimitrova, B. Hedquist et al.<br/> The past half century has seen an unprecedented growth of the world's urban population. While urban areas proffer the highest quality of life, they also inflict environmental degradation that pervades a multitude of space-time scales. In the atmospheric context, stressors of human (anthropogenic) or ... [Phys. Fluids 22, 051301 (2010)] published Thu May 13, 2010. Designing large-eddy simulation of the turbulent boundary layer to capture law-of-the-wall scaling http://link.aip.org/link/?PHF/22/021303/1&agg=rss James G. Brasseur and Tie Wei<!--orlang--> (&#x97E6;&#x94C1;)<!--orlang--><br/> Law-of-the-wall (LOTW) scaling implies that at sufficiently high Reynolds numbers the mean velocity gradient [partial-derivative]U/[partial-derivative]z in the turbulent boundary layer should scale on u/z in the inertia-dominated surface layer, where u is the friction velocity and z is the distance ... [Phys. Fluids 22, 021303 (2010)] published Thu Feb 25, 2010. Investigating slippage, droplet breakup, and synthesizing microcapsules in microfluidic systems http://link.aip.org/link/?PHF/22/021302/1&agg=rss P. Tabeling<br/> The present paper reflects the presentation made in the 2008 APS-DFD meeting; it is dedicated in discussing liquid slippage at solid walls, droplet breakup in microfluidic systems, and capsule generation in microfluidic devices. The analysis of the physical processes implied in these situations led ... [Phys. Fluids 22, 021302 (2010)] published Thu Feb 25, 2010. The art of mixing with an admixture of art: Fluids, solids, and visual imagination http://link.aip.org/link/?PHF/22/021301/1&agg=rss Julio M. Ottino<br/> Although creativity is often equated with art, it is just as present in science and technology. The Otto Laporte Lecture provides a forum to cover some of this groundan opportunity to offer observations about scientific imagination, the role of collaborators and environment, creative processes in ge ... [Phys. Fluids 22, 021301 (2010)] published Thu Feb 25, 2010. Twenty years of experimental and direct numerical simulation access to the velocity gradient tensor: What have we learned about turbulence? http://link.aip.org/link/?PHF/21/021301/1&agg=rss James M. Wallace<br/> Twenty years ago there was no experimental access to the velocity gradient tensor for turbulent flows. Without such access, knowledge of fundamental and defining properties of turbulence, such as vorticity dissipation, and strain rates and helicity, could not be studied in the laboratory. Although a ... [Phys. Fluids 21, 021301 (2009)] published Tue Feb 10, 2009. On streak breakdown in bypass transition http://link.aip.org/link/?PHF/20/101505/1&agg=rss Philipp Schlatter, Luca Brandt, H. C. de Lange, and Dan S. Henningson<br/> Recent theoretical, numerical, and experimental investigations performed at the Department of Mechanics, KTH Stockholm, and the Department of Mechanical Engineering, Eindhoven University of Technology, are reviewed, and new material is presented to clarify the role of the boundary-layer streaks and ... [Phys. Fluids 20, 101505 (2008)] published Fri Oct 31, 2008.