Detail publikace
A Downhill Simplex method for computation of interfacial heat transfer coefficients in alloy casting
POHANKA, M. WOODBURY, K.
Anglický název
A Downhill Simplex method for computation of interfacial heat transfer coefficients in alloy casting
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
This article describes methods used for obtaining both the thermal contact resistance (TCR) between an alloy casting and the mold, and the heat transfer coefficient (HTC) between the mold and a bath that is used to control the speed of the solidification process. Both the Downhill Simplex optimization method and Beck's approach are used in the inverse task. These inverse tasks, which simultaneously compute both the TCR and HTC, use a model involving a phase change during the solidification of the alloy. An automatically generated mesh uses the control volume method and "Direct Enthalpy" algorithm instead of the "Total Enthalpy" approach to compute the temperature profile inside the alloy-casting model. A comparison of the Downhill Simplex optimization method and Beck's approach is made.
Anglický abstrakt
This article describes methods used for obtaining both the thermal contact resistance (TCR) between an alloy casting and the mold, and the heat transfer coefficient (HTC) between the mold and a bath that is used to control the speed of the solidification process. Both the Downhill Simplex optimization method and Beck's approach are used in the inverse task. These inverse tasks, which simultaneously compute both the TCR and HTC, use a model involving a phase change during the solidification of the alloy. An automatically generated mesh uses the control volume method and "Direct Enthalpy" algorithm instead of the "Total Enthalpy" approach to compute the temperature profile inside the alloy-casting model. A comparison of the Downhill Simplex optimization method and Beck's approach is made.
Klíčová slova anglicky
interfacial heat transfer coefficient; casting; Downhill Simplex; inverse heat transfer; phase change; enthalpy; automatically generated
Vydáno
01.10.2003
Nakladatel
TAYLOR & FRANCIS LTD, 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
Místo
OXON, ENGLAND
ISSN
1068-2767
Ročník
11
Číslo
5
Strany od–do
409–424
Počet stran
16
BIBTEX
@article{BUT156295,
author="Michal {Pohanka} and Keith {Woodbury},
title="A Downhill Simplex method for computation of interfacial heat transfer coefficients in alloy casting",
year="2003",
volume="11",
number="5",
month="October",
pages="409--424",
publisher="TAYLOR & FRANCIS LTD, 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND",
address="OXON, ENGLAND",
issn="1068-2767"
}