An Analysis of Stokes Flow through Periodic Arrays of Cylinders Using Homogenization Theory

균질화이론을 이용한 규칙적인 배열을 갖는 실린더 집합체 사이의 점성유동 해석

Numerical solutions of Stokes flow through periodic arrays of cylinders were sought using Darcy's law and homogenization theory. Drag and lift forces of each cylinder were computed for various attack angles and pitch-to-diameter ratios. It was found that drag force decreased as principal pressure gradient direction deviated from array direction and that drag force increased exponentially as pitch-to-diameter ratio approached unity. Similar tendency was found in lift force except that lift force increased and then decreased in quadratic manner as attack angle varied.