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 WoS

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.

Klíčová slova anglicky

interfacial heat transfer coefficient; casting; Downhill Simplex; inverse heat transfer; phase change; enthalpy; automatically generated

Vydáno

2003-10-01

Nakladatel

TAYLOR & FRANCIS LTD, 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND

Místo

OXON, ENGLAND

ISSN

1068-2767

Časopis

INVERSE PROBLEMS IN ENGINEERING

Ročník

11

Číslo

5

Strany od–do

409–424

Počet stran

16

BIBTEX


@article{BUT156295,
  author="POHANKA, M. and WOODBURY, K.",
  title="A Downhill Simplex method for computation of interfacial heat transfer coefficients in alloy casting",
  journal="INVERSE PROBLEMS IN ENGINEERING",
  year="2003",
  volume="11",
  number="5",
  pages="409--424",
  doi="10.1080/1068276031000109899",
  issn="1068-2767",
  url="http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=1&SID=E6nvmy46VwTA1thaGjI&page=1&doc=1"
}