Motion of a neutrally buoyant circular particle in a clockwise double-lid-driven square cavity

Abstract

The motion of a neutrally buoyant circular particle in a clockwise double-lid-driven square cavity is studied with the lattice Boltzmann method. To understand, predict, and control the motion of the circular particle, the effect of the initial position, particle size, and Reynolds number is studied. The center of the square cavity is a fixed point, where the circular particle remains stationary all the time; otherwise, the circular particle is stabilized at the limit cycle, which is created by the inertia of the circular particle, confinement of the boundaries of the square cavity, and vortex behavior. The effect of the particle size on the motion of the circular particle is obvious, with the increase in the particle size, the confinement of the boundaries becomes stronger, and the limit cycle shrinks toward the center of the square cavity. With the increase in the Reynolds number, the fluid flow becomes stronger, two symmetric secondary vortices at the top left and bottom right corners develop, and the limit cycle is squashed along the leading diagonal of the square cavity.

Effect of Transmission Lines Arrangement on Drag and Lift Coefficients: A Numerical Study

“…where ߩ is the fluid density, u is the fluid velocity, and ‫‬ is the fluid pressure. To calculate the flow, the lattice Boltzmann method is adopted [13][14][15][16][17][18][19][20][21][22][23][24], whose evolution equation is…”

Numerical Analysis of Lid Driven Convective Heat Transfer and Fluid Flow around a Tilted Elliptical Cylinder

“…Several investigations on mixed convective heat transfer are available in the literature. These include but are not limited to square shapes [7][8][9][10][11][12][13][14][15][16] and squares with inner elliptical cylinders (EC) [16][17][18]. Research shows that heat transfer is enhanced when fitted with an inner EC as the inner cylinder gets near the bottom wall.…”