Experience of Nurbas Modeling Design Process
Nurbas curve modeling is one of a very important function of three-dimensional software, it provides another excellent way of modeling for three-dimensional object shape by its unique model features, which fully demonstrates functional advantages of its three-dimensional forming from the line to a surface, is a functional module which the other three-dimensional software must be integrated into. This paper based on the examples experience to study the Nurbas modeling characteristics and laws in 3DS MAX, to further enhance the ability of Nurbas modeling design, to enhance the understanding and grasp of the function.
Abstract Buoyancy-driven recirculating flows between two parallel plates, whose temperature varies sinusoidally, have been attentively investigated. In this study, we place our emphasis on joint effects rendered by both (a) the existence of two insulated side walls and (b) the phase of the bottom-surface sinusoidal temperature on the overall Nusselt number (Nu) of the system. Using the finite-element-based COMSOL and the finite-volume-based ANSYS Fluent packages, we have discovered that Nu is gradually affected by expansion and compression of vortices, as well as is abruptly affected by birth and death of vortices. Under the width-divided-by-height aspect ratio of ten, these gradual or abrupt variations for airflows remain conspicuous regardless of the wave number and the Rayleigh number.