Results 71 to 75 of about 288,835 (75)

Monotonicities of Tanaka-Nakayama flows [PDF]

arXiv
We prove conformal and global dimensions monotonically decrease under the infinitely many Tanaka-Nakayama renormalization group flows between Virasoro minimal models. The flows also satisfy the half-integer condition.
arxiv  

Ricci flow on Courant algebroids [PDF]

arXiv
We develop a theory of Ricci flow for metrics on Courant algebroids which unifies and extends the analytic theory of various geometric flows, yielding a general tool for constructing solutions to supergravity equations. We prove short time existence and uniqueness of solutions on compact manifolds, in turn showing that the Courant isometry group is ...
arxiv  

Hopf bifurcation of a non-parallel Navier-Stokes flow [PDF]

arXiv
A plane non-parallel flow in a square fluid domain exhibits an odd number of vortices. A spectral structure is found to have a non-real solution of the spectral problem linearized around the flow. With the use of this structure, Hopf bifurcation or secondary time periodic flows branching of a basic square eddy flow is found.
arxiv  

Author Correction: Soret and dufour impacts on radiative power-law fluid flow via continuously stretchable surface with varying viscosity and thermal conductivity

Scientific Reports
T. S. Khaleque, A. Hossain, M. D. Shamshuddin, Mohammad Ferdows, S. O. Salawu, Shuyu Sun   +5 more
doaj   +1 more source

Extending the operational range of Francis turbines: A case study of a 200 MW prototype

Energy Conversion and Management: X
Francis turbines are now widely used to support the integration of renewable and intermittent energy sources such as solar and wind power. Consequently, these turbines often operate away from their best efficiency point (BEP).
Michel J. Cervantes, Joel Sundström, Shahab Shiraghaee, Morten Kjeldsen, Erik Jacques Wiborg   +4 more
doaj