Qualitative Solid Modelling. 2nd Report. Qualitative Solid Operation and A Modelling System.

Qualitative Modelling

Traditional, quantitative simulation based on quantitative models aims at producing precise numerical results as answers to user’s questions about the problem domain. Such precise numerical answers are often overly elaborate, and they contain much more information than it is actually needed. In every day life, humans use common sense to reason about problems qualitatively, without numbers. In t...

Solid Propellant Microthruster: Theory of Operation and Modelling Strategy

A modelling strategy for a microthruster array based on solid fuel is presented. We review the theory of operation of the microthruster that includes an electrothermal process, ignition, sustained combustion, membrane rupture and gas dynamics. The recommended level of theory is chosen to answer practical engineering questions, so as to make the recommended models feasible to develop and optimiz...

Solid Modelling in Haskell

We investigate the suitability of the functional model of programming as applied to the solid modelling eld of 3D rendering, with particular reference to expressiveness and e ciency. We nd that functional languages with a good implementation can be more e cient than other languages in certain aspects in the rendering process. Furthermore, recent developments in functional languages allow di cul...

Solid Modelling Techniques

Analytical PDE Solid Modelling

In this paper we study analytical solutions of a fourth order partial differential equation subjected to different boundary conditions of solid modelling, and investigate the effects of various factors in the PDE and boundary conditions on the shape of the generated solids. With the proposed modelling technique, we can easily manipulate and modify the shape of the generated solid by altering a ...