Nanofins as a Means of Enhancing Heat Transfer: Leading Order Results

Peter Vadasz

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The porous media approach is being adapted to a system of nanoparticles that are attached to a solid surface (a metal wire) embedded into a stagnant fluid, forming by design nanofins around the wire. The analyzed system resembles the Transient Hot Wire experimental method used in evaluating the thermal conductivity of a fluid or nanofluid suspensions. Since the attachment of the nanoparticles to the wire is done by design (as distinct from uncontrolled agglomeration around the wire), one major objective in such a design is attempting to enhance the heat transfer from the wire. The latter objective is analyzed via a short times approximation of the solution. Preliminary results based on the leading order solution shows that such a heat transfer enhancement is indeed possible and presents major advantages compared to commonly used macro-fins.

Original languageEnglish (US)
Pages (from-to)165-183
Number of pages19
JournalTransport in Porous Media
Issue number2
StatePublished - Sep 2011


  • Effective thermal conductivity
  • Nanofins
  • Nanofluids
  • Porous media
  • Transient hot wire

ASJC Scopus subject areas

  • Catalysis
  • General Chemical Engineering


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