Publication detail

A Downhill Simplex method for computation of interfacial heat transfer coefficients in alloy casting

POHANKA, M. WOODBURY, K.

Original Title

A Downhill Simplex method for computation of interfacial heat transfer coefficients in alloy casting

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

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

Authors

POHANKA, M.; WOODBURY, K.

Released

1. 10. 2003

Publisher

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

Location

OXON, ENGLAND

ISBN

1068-2767

Periodical

INVERSE PROBLEMS IN ENGINEERING

Year of study

11

Number

5

State

United Kingdom of Great Britain and Northern Ireland

Pages from

409

Pages to

424

Pages count

16

URL

http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=1&SID=E6nvmy46VwTA1thaGjI&page=1&doc=1

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"
}