图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
多孔介质期刊
影响因子: 1.49 5年影响因子: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN 打印: 1091-028X
ISSN 在线: 1934-0508

多孔介质期刊

DOI: 10.1615/JPorMedia.v9.i7.10
pages 609-624

Foundry Core Box Vent Positioning as a Problem of Boundary Optimal Control of Convective Gas Flow in Porous Media

Vincent Pavan
Institut des Systèmes Thermiques Industriels, 13453 Marseille cedex 13, France
Marc Prat
Institut de Mecanique des Fluides de Toulouse, U.M.R. C.N.R.S. − INP/UPS N°5502, Avenue du professeur Camille Soula, 31400 Toulouse, France
V. Vidal
Centre Technique des Industries de la Fonderie, 44, av. de la Division Leclerc, 92318 Sévres Cedex, France

ABSTRACT

This paper discusses the gassing step of the foundry core box-making process for the cold-box/amine system with air as carrier gas. A model of gassing is developed and leads to a good qualitative agreement with experimental visualizations. It is shown that the process efficiency directly depends on the correct opening or closing of the vents positioned at the core box boundary. Then, it is shown how the vents optimal control can be studied as a boundary optimal control of convective gas flow in a porous domain. The problem is to minimize the energy and amount of gas injected in the system while ensuring that the injected gas visits every point of the porous domain in a minimum time. An optimization algorithm based on the adjoint state method is developed. The gas transport is by advection and controlled using Neumann boundary conditions. Application of the optimization procedure leads to results in fair agreement with direct simulations of the process. This opens up interesting perspectives of computer-aided optimal vent positioning.


Articles with similar content:

OPTIMIZATION OF THE FOREBODY OF A SUPERSONIC FLYING VEHICLE CONFIGURATION WITH A WINDWARD INTAKE
TsAGI Science Journal, Vol.46, 2015, issue 7
Sergey Alexandrovich Takovitskii
ELECTROARC DISCHARGE IN CONDITIONS BOW-CONTACT CUTTING OF METAL
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.5, 2001, issue 1
V. Frolov
ELECTROARC DISCHARGE IN CONDITIONS BOW-CONTACT CUTTING OF METAL
Progress in Plasma Processing of Materials, 2001, Vol.0, 2001, issue
V. Frolov
EXPERIMENTAL AND NUMERICAL INVESTIGATIONS OF GAS DYNAMICS INTERACTION OF HEATED AND COLD FLOWS INJECTED THROUGH A WALL INTO A SUPERSONIC FLOW
TsAGI Science Journal, Vol.47, 2016, issue 5
Vladimir Vladimirovich Skvortsov, Mikhail Alexandrovich Starodubtsev
Optimizing Equipment In-Service Durations and Costs while Taking Technological Progress into Account
Journal of Automation and Information Sciences, Vol.28, 1996, issue 1-2
Yu. P. Yatsenko, N. V. Khritonenko