Publication detail

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

POHANKA, M. WOODBURY, K.

English title

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

Type

WoS Article

Language

en

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 in English

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

Released

2003-10-01

Publisher

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

Location

OXON, ENGLAND

ISSN

1068-2767

Journal

INVERSE PROBLEMS IN ENGINEERING

Volume

11

Number

5

Pages from–to

409–424

Pages count

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"
}