The phononic band structures of two-dimensional solid phononic crystals with different lattice and scatterer symmetry are studied numerically, with three types of lattice (square, triangular and rectangular) and four different scatterer shapes (circle, hexagon, square and rectangle) considered. XY and Z vibration modes are investigated separately. Two types of phononic crystal are considered: o...

A rectangular rod is placed in a flow field flowing parallel to a flat plate. Effect of chord-thickness ratio of rectangular rod on developing vortex shedding downstream to the rod is studied. Then, for each one of the aspect ratios, the distance of the rod from the neighboring flat plate is reduced until the rod sticks to the flat plate. In each case, the effect of the flat plate boundary laye...

According to X-ray single-crystal structure analysis, {[Cu(II)(en)2]2[Cu(I)2(CN)6]}[Cu(II)(en)2]2[Cu(I)(CN)3]2.2H2O contains copper in four different coordination environments: trigonal planar, square planar, square pyramidal and tetrahedral. The different coordination geometries of copper were investigated by quantum chemical calculations of model compounds, thus allowing to tentatively assign...

The paper proposes an Induction Heating Principle using Full Bridge Inverter where a Single phase full bridge inverter consists of one rectifier, one capacitor, four mosfets and at the load side one induction heating rod is connected. So by this when any ac supply is given to the input side, we will get the square wave at the output side[1][3]. In this concept the induction heating rod is heate...

A two-dimensional ANSYS/Fluent computational fluid dynamics model is constructed of an existing experiment that consists of a square 8x8 array of heater rods within a square cross section pressure vessel filled with helium. The model includes heat generation and conduction within the rods, conduction and radiation heat transfer across the helium between the rods and enclosure, and the effective...

Abstract By calculating the kinetic and potential energies, applying Lagrangian mechanics, with Euler-Lagrange equations, we obtained equations that were used to analyze pendulum motion of a mechanical system consisting an arrangement three rigid rods, two them equal mass m length l , which behave like physical pendulums, are joined by means third, rod M L . In latter, there is square block can...