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Heat Transfer Research
Импакт фактор: 0.404 5-летний Импакт фактор: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561

Выпуски:
Том 51, 2020 Том 50, 2019 Том 49, 2018 Том 48, 2017 Том 47, 2016 Том 46, 2015 Том 45, 2014 Том 44, 2013 Том 43, 2012 Том 42, 2011 Том 41, 2010 Том 40, 2009 Том 39, 2008 Том 38, 2007 Том 37, 2006 Том 36, 2005 Том 35, 2004 Том 34, 2003 Том 33, 2002 Том 32, 2001 Том 31, 2000 Том 30, 1999 Том 29, 1998 Том 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2018025851
pages 487-499

REGULAR SOLID BODIES WITH UNIFORM SURFACE HEAT FLUX: CURVE-FITTED SURFACE TEMPERATURES VERSUS TIME IN THE SMALL TIME SUBREGION

Antonio Campo
Department of Mechanical Engineering, The University of Vermont, Burlington, VT 05405, USA
Yunesky Masip Macia
Escuela de Ingenieria Mecanica, Pontificia Universidad Catolica de Valparaiso, Valparaiso, Chile

Краткое описание

The present study considers the behavior of surface temperatures in regular solid bodies (plate, cylinder, and sphere) with constant initial temperature and heated with uniform heat flux in the early time subregion. First, the dimensionless surface temperatures are evaluated numerically in the entire dimensionless time domain with a symbolic algebra software owning automatic convergence control. Second, a regression analysis is applied to the gathered data for the dimensionless surface temperatures versus the dimensionless time in the dimensionless time subregion 0 < τ ≤ τcrcr is the critical dimensionless time that sets the borderline for the "large time" subregion). As a direct outcome, compact correlation asymptotes are retrieved for prediction of the dimensionless surface temperatures in the plate, cylinder, and sphere confined to the dimensionless time subregion 0 < τ ≤ τcr Interestingly, agreement with the exact analytical surface temperature distributions expressible by the standard infinite series for the "all time" domain is considered excellent.


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