2016
IMAACA 2016 Proceeding
True bond graph formulation for compressible thermofluid duct flows
Authors: J. L. Baliņo
Abstract
In this paper a bond graph methodology described in a previous contribution (Baliņo et al., 2006) is used to model compressible one-dimensional pipe flows with rigid walls. Physical effects compatible with the one- dimensional approximation such as shear wall and nor- mal stresses, wall and axial heat conduction and flow pas- sage area changes can be modeled naturally. Nodal vec- tors of mass, velocity and entropy are defined as bond graph state variables. The state equations and the cou- pling between the inertial and entropy ports are modeled with true bond graph elements.
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