Design tool

About: Design tool is a research topic. Over the lifetime, 3864 publications have been published within this topic receiving 46401 citations.

Modelling of Spouted and Spout-Fluid Beds: Key for Their Successful Scale Up

Abstract: The development of robust mathematical models could provide the necessary tools for a more rapid, efficient, and reliable spouted bed technology development. Computer simulations can be very useful to aid this design and scale-up process: firstly, they can contribute to obtain a fundamental insight into their complex dynamic behavior by understanding the elementary physical principles such as drag, friction, dissipation etc.; secondly, the simulations can be used as a design tool where the ultimate goal is to have a numerical model with predictive capabilities for gas-particle flows at engineering scale. Clearly, one single simulation method will not be able to achieve this goal, but a hierarchy of methods modelling phenomena on different length and time scales can achieve this. The most fruitful approach will be when they are simultaneously followed, so that they can mutually benefit from each other. In this sense, this paper presents a review of the current state of the art of modelling on spouted and spout-fluid beds through an analysis of recent literature following a multiscale approach (molecular and particle, lab, plant and industrial scale). The main features of the different scales together with their current limits are discussed and specific topics are highlighted as paths that still need to be explored. In summary, the paper aims to define the theoretical setline and the basis of improvement that would lead to a robust multiscale model with solid links between micro and macroscopic phenomena. If done with the correct balance between accuracy and computational costs it will gear SB towards their reliable and successful implementation.

Designing and debugging custom computing applications

Abstract: Custom computing machines offer unique opportunities for verification. This article reviews these techniques and introduces JHDL, a design tool that exploits these and other verification aids.

Optimal Electromagnetic-Thermo-Mechanical Integrated Design Candidate Search and Selection for Surface-Mount Permanent-Magnet Machines Considering Load Profiles

Abstract: Most existing design and optimization methods treat the electromagnetic, thermal, and mechanical designs separately. As a result, the effects of power supply, machine control, load profile, thermal effects, and materials are not fully integrated and accounted for, which often leads to over- or underdesign. This paper proposes an innovative and computationally efficient approach which integrates the electromagnetic and thermo-mechanical design for surface mount permanent magnet machines. Particle swarm optimization is part of this integrated process to efficiently find design candidates which optimize certain requirements, such as weight, efficiency, etc. The effects of power supplies, machine controls, load profiles, thermal effects, and materials can thus all be considered systematically in the proposed multiphysics design approach. This results in a multiphysics design tool that can rapidly locate an optimal design candidate for further consideration.