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Vachagina E.K.,Research Center for Power Engineering Problems of the Russia Academy of science | Kadyirov A.I.,Research Center for Power Engineering Problems of the Russia Academy of science
Quarterly Journal of Mechanics and Applied Mathematics | Year: 2014

Various helical coordinate systems used for mathematical description of the heat transfer and hydrodynamics problems of fluid flow in the channels with helical symmetry (invariance with respect to shifts along the helical lines) which are widely used as intensifiers of convective heat transfer are discussed in the article. Impossibility of constructing the orthogonal helical coordinate system is proved. The most simple and convenient type of helical coordinate system is obtained. © 2014 © The Author, 2014. Published by Oxford University Press; all rights reserved. For Permissions, please email: journals.permissions@oup.com. Source

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