Phase transformation affects multiphase flow in geothermal and gas-condensate reservoirs due to the same substance occurring in different phases. These effects change the phase behavior and the flow characteristics. The goals of this research were to compare the flow behavior and relative permeabilities difference between two-phase flow with and without phase transformation effects in smooth-wa...

Aircraft observations from two Arctic field campaigns are used to characterize and model surface heat moisture exchange over the marginal ice zone (MIZ). We show that roughness lengths for uninterrupted sea vary with Reynolds number (; itself a function of length momentum, , wind stress), peak at transition between aerodynamically smooth (<0.135) rough (>2.5) regimes. A pre-existing theoretical...

Abstract The rheological characterization of concentrated suspensions is complicated by the heterogeneous nature their flow. In this contribution, shear viscosity and wall slip velocity are quantified for highly (solid volume fractions 0.55–0.60, D 4,3 ~ 5 µm). was determined using a high-pressure capillary rheometer equipped with 3D-printed die that has grooved surface internal flow channel. t...

We have studied the oxidation of submicron aqueous aerosols consisting of internal mixtures of sodium oleate (oleic acid proxy), sodium dodecyl sulfate, and inorganic salts by O3, NO3/N2O5, and OH. Experiments were performed using an aerosol flow tube and a continuous flow photochemical reaction chamber coupled to a chemical ionization mass spectrometer (CIMS). The CIMS was fitted with a heated...

Peripheral sensory organs provide the first transformation of sensory information, and understanding how their physical embodiment shapes transduction is central to understanding perception. We report the characterization of surface transduction during active sensing in the rodent vibrissa sensory system, a widely used model. Employing high-speed videography, we tracked vibrissae while rats sam...

This paper describes an analysis of reflection and transmission of acoustic waves from an imperfectly reflecting, rough fluid–fluid interface within the Kirchhoff approximation. It presents the results of calculations of the coherent and diffuse field. This work is motivated by the fact that few explicit results of the characteristics of the scattered and transmitted wave field exist in the lit...

Impinging jets have received considerable attention during the last decade. The reason is mainly due to their inherent characteristics of high rates of heat transfer besides having simple geometry. Thus most practical applications of jet impingement occur in industries where the heat transfer requirements have exceeded capacity of ordinary heating and cooling techniques. This work presents and ...

A strategy for dealing with turbulent flows over a two dimensional surface mounted obstacle using the wall y as guidance in selecting the appropriate grid configuration and corresponding turbulence models are investigated using Fluent. The CFD results were compared with experimental data from Zeidan’s Turbulent Shear Recovery behind Obstacles on Smooth and Rough Surfaces. Both undisturbed and d...