217 citations · 868 across the 46 of their papers we have counts for
4 papers · 1 filter
Nonlinearly most unstable route to high-speed boundary-layer turbulence
Reza Jahanbakhshi, Tamer A. Zaki
Laminar-to-turbulence transition in zero-pressure-gradient boundary layer at Mach 4.5 is studied using direct numerical simulations. For a given level of total disturbance energy,…
Perturbative expansions of the conformation tensor in viscoelastic flows
Ismail Hameduddin, Dennice F. Gayme, Tamer A. Zaki
We consider the problem of formulating perturbative expansions of the conformation tensor, which is a positive-definite tensor representing polymer deformation in viscoelastic flow…
Geometric decomposition of the conformation tensor in viscoelastic turbulence
Ismail Hameduddin, Charles Meneveau, Tamer A. Zaki +1
This work introduces a mathematical approach to analysing the polymer dynamics in turbulent viscoelastic flows that uses a new geometric decomposition of the conformation tensor, a…
Scaling of energy amplification in viscoelastic channel and Couette flow
Ismail Hameduddin, Tamer A. Zaki, Dennice F. Gayme
The linear amplification of disturbances is critical in setting up transition scenarios in viscoelastic channel and Couette flow, and may also play an important role when such flow…