# Carlo SigmundEUROCODES Spreadsheets Structural Design® - Carlo Sigmund

Bachelor of Engineering

6
Publications
2,929
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## Publications

Publications (6)
Article
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This paper aims to present some mathematical interpretations around the possibility of formulating a constitutive identity of viscous powers for Newtonian fluids (see (2)). The focus is on the possibility of simplifying the total energy balance equation (internal and kinetic) of a viscous Newtonian fluid by virtue of this possible identity. We desc...
Article
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In this paper, having considered a particular constitutive identity of viscous powers as valid, it is shown that it is possible to treat the two-dimensional field of a steady motion of a compressible viscous fluid, v d = i x v d,x + i y v d,y , divv d 0, in analogy to a plane field of steady motion for an incompressible fluid, v = i x v x + i y v y...
Article
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Proposta di calcolo sull'assetto delle spinte dei terreni, in presenza di falda freatica variabile su muri di sostegno fondati su pali, secondo EN 1997-1 ed NTC2018 *** Osservazioni critiche a quanto riportato al par. 6.5.2.2 delle NTC2018 e al par. Abstract Secondo la EN 1997-1 (Eurocodice 7) le raccomandazioni in merito alla presenza di falda a t...
Article
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We shall describe the result of few mathematical investigations of some thermodynamic relations in fluid dynamics. We shall mainly consider the newtonian flows under general conditions. In particular, this article aims to present some personal mathematical interpretations around the possibility of formulating a constitutive viscous powers identity...
Article
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In this article, we shall present and analyse a proposal to demonstrate the well-known constitutive equation of Newtonian viscous fluids (Navier-Stokes equation). We concentrate on the flow of an elementary Newtonian fluid dV = dx_k dx_j dx_3 which possesses inertia and viscousity and which is effectively compressible. Here it is assumed that the l...
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We study the analithitical solution of a first order linear equation, relative to a Couette-like flow pattern. We analyze a particular mathematical solution that describes the shear stress trend of Newtonian viscous fluids around the solid adhesion surfaces. We consider, for the sake of simplicity, a purely two-dimensional, incompressible flow with...