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In this paper, drug coated magnetic nanoparticle delivery is numerically studied. Specific part of right foot vessel connected to the abdominal aorta is considered as target tissue. Single wire is applied as magnetic source. Buongiorno’s two-phase model is modified by adding the magnetophoresis term to the volume fraction transport equation. Governing unsteady equations with ferrohydrodynamics Kelvin force as a source term is discretized with PISO based finite volume method. Effects of the location of magnetic source and magnitude of current carrying from wire (1000, 2000, 3000, 4000 and 5000 amperes) are investigated on residence time and deposition level of drug on target tissue. Diameter and volume fraction of nanoparticles are 10 nm and 0.002, respectively. From the results, location of wire should be near and upstream the target tissue. Furthermore, by using this method deposition level of drug on target tissue can be increased by 7.5 times. Best drug delivery performance is seen for current magnitude of 2000 amperes.

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Deficiency of potable water has created many problems for human and human society, Therefore, The production of fresh water from saline water is an important issue. One of the method of production fresh water from saline water is the use of solar stills. This paper is the numerical simulation of the conventional solar stills with setting Rectangular, Triangular, Wavy barriers on the left and right walls inside the solar still. Setting barriers causes a change in the pattern of humid airflow in the solar still that it affect water productivity and convective heat transfer rate. Also, changes in the size and number of barriers cause changes it will be in the result. The continuity, momentum, energy and concentration equations are discretized by finite volume method and the results are presented as flow function and concentration and temperature contours. The simulation results show that setting wavy barriers with A=0.01(m) and N=2 at left wall and A=0.075(m) and N=5 at right wall water productivity and convective heat transfer rate can be increased by about 31% and 31.34%.