Computational flow analysis with boundary layer and contact representation: I. Tire aerodynamics with road contact

Abstract In computational flow analysis with moving solid surfaces and contact between the surfaces, it is a challenge to represent boundary layers an accuracy attributed moving-mesh methods without leaving mesh protection gap. The space-time topology change (ST-TC) method, introduced in 2013, makes computation possible even when we have or other kinds of flow-domain TC. represented giving up on high-resolution representation near surfaces. With ST-TC ST before after, has been address many challenges encountered conducting this class presence additional complexities such as geometric complexity, rotation deformation multiscale nature flow. first part two-part article, provide overview that made all possible. We also computations performed for tire aerodynamics include complexity near-actual geometry grooves, road contact, rotation, roughness fluid films.