Thermohydrodynamics of an evaporating droplet studied using a multiphase lattice Boltzmann method.

In this paper, the thermohydrodynamics of an evaporating droplet is investigated by using a single-component pseudopotential lattice Boltzmann model. The phase change is applied to the model by adding source terms to the thermal lattice Boltzmann equation in such a way that the macroscopic energy equation of multiphase flows is recovered. In order to gain an exhaustive understanding of the complex hydrodynamics during evaporation, a single droplet is selected as a case study.

Assessment of interaction potential in simulating nonisothermal multiphase systems by means of lattice Boltzmann modeling.

The pseudopotential lattice Boltzmann model (PP-LBM) is a very popular model for simulating multiphase systems. In this model, phase separation occurs via a short-range attraction between different phases when the interaction potential term is properly chosen. Therefore, the potential term is expected to play a significant role in the model and to affect the accuracy and the stability of the computations.

Lattice-Boltzmann-based two-phase thermal model for simulating phase change.

A lattice Boltzmann (LB) method is presented for solving the energy conservation equation in two phases when the phase change effects are included in the model. This approach employs multiple distribution functions, one for a pseudotemperature scalar variable and the rest for the various species. A nonideal equation of state (EOS) is introduced by using a pseudopotential LB model.

Health and happiness among homosexual couples in Europe.

Data from five waves (2002-10) of the European Social Survey were examined to see the extent to which heterosexual and homosexual couples differ in their health and happiness. Homosexual people had lower levels of self-rated health and happiness. We suggest that those who experience discrimination are more strongly integrated in their gay community, which, in turn, may bring positive effects in terms of happiness due to a sense of belonging, but may be accompanied by the specific health risks associated with this community.

An integrative approach for comparing microcirculation between normal and alveolar cleft gingiva in children scheduled for secondary bone grafting procedures.

Objective: The aim of this study was to compare microcirculatory parameters in normal versus alveolar cleft gingiva in children selected for secondary bone grafting procedures.

Study Design: This study included 11 consecutive patients with complete unilateral alveolar clefts who required secondary bone grafting procedures. In a split-mouth design, noninvasive real-time simultaneous measurements among tissue oxygen saturation (StO2), hemoglobin level (rHb), and blood flow parameters were obtained from normal and alveolar cleft gingiva using spectrophotometry and laser Doppler flowmetry.