...Edmond J. Walsh; Donald M. Mc Eligot; Luca Brandt; Phillip Schlatter The objective of the present research is to develop new fundamental knowledge of the entropy generation process in laminar flow with significant fluctuations (called pre-transition) and during transition prematurely induced...

... as an alternative, is closer to the physics of flow losses, however. This definition is based upon the dissipation of mechanical energy as main quantity. With the second law of thermodynamics this dissipation can be linked to the local entropy generation in the flow field. For various conduit components K values...

...Aytac Arikoglu; Guven Komurgoz; Ibrahim Ozkol In this study, it is the first time that the effect of slip on the entropy generation is investigated for the flow over a rotating single free disk. The problem is considered for steady and axially symmetrical case in a Newtonian ambient fluid...

...Donald M. McEligot; Edmond J. Walsh; Eckart Laurien; Philippe R. Spalart The local (pointwise) entropy generation rate per unit volume S ‴ is a key to improving many energy processes and applications. Consequently, in the present study, the objectives are to examine the effects of Reynolds number...

...Edmond J. Walsh; Kevin P. Nolan; Donald M. McEligot; Ralph J. Volino; Adrian Bejan Conditionally-sampled boundary layer data for an accelerating transitional boundary layer have been analyzed to calculate the entropy generation rate in the transition region. By weighing the nondimensional...

...O. B. Adeyinka; G. F. Naterer This article presents new modeling of turbulence correlations in the entropy transport equation for viscous, incompressible flows. An explicit entropy equation of state is developed for gases with the ideal gas law, while entropy transport equations are derived...

... was observed for both freestream turbulence levels. The measured entropy generation rate compares favourably with that determined from the pressure loss in the turbine blade wake. The discrepancy at high FST arises due to the Reynolds stresses in the laminar and transitional boundary layers which were...