Build direction effects on additively manufactured channels

Jacob C. Snyder, Curtis K. Stimpson, Karen Ann Thole, Dominic Mongillo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

48 Scopus citations


With the advances of Direct Metal Laser Sintering (DMLS), also generically referred to as additive manufacturing, novel geometric features of internal channels for gas turbine cooling can be achieved beyond those features using traditional manufacturing techniques. There are many variables, however, in the DMLS pr°Cess that affect the final quality of the part. Of most interest to gas turbine heat transfer designers are the roughness levels and tolerance levels that can be held for the internal channels. This study investigates the effect of DMLS build direction and channel shape on the pressure loss and heat transfer measurements of small scale channels. Results indicate that differences in pressure loss °Ccur between the test cases with differing channel shapes and build directions, while little change is measured in heat transfer performance.

Original languageEnglish (US)
Title of host publicationHeat Transfer
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791856710, 9780791856710
StatePublished - 2015
EventASME Turbo Expo 2015: Turbine Technical Conference and Exposition, GT 2015 - Montreal, Canada
Duration: Jun 15 2015Jun 19 2015

Publication series

NameProceedings of the ASME Turbo Expo


OtherASME Turbo Expo 2015: Turbine Technical Conference and Exposition, GT 2015

All Science Journal Classification (ASJC) codes

  • General Engineering


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