We characterise the stress singularity of the Oldroyd-B, Phan-Thien-Tanner (PTT), and Giesekus viscoelastic models in steady planar stick-slip flows. For both PTT and Giesekus models in the presence of a solvent viscosity, ...

The posttraumatic stress disorder (PTSD) is reviewed. The characteristics, prevalence, and course of PTSD in children are described, and the protector and risk factors involved, including response to trauma, age, family, ...

We focus here on using a Newtonian velocity field to evaluate numerical schemes for two different formulations of viscoelastic flow. The two distinct formulations we consider, correspond to either using a fixed basis for ...

Stick-slip flow is a challenging viscoelastic benchmark problem due to the presence of a separation or transition point at the die exit where a sudden change in flow boundary conditions occurs. We present numerical simulations ...

In the present work some generalizations of the Hawking singularity theorems in the context of f(R) theories are presented. The main assumptions are: the matter fields stress energy tensor satisfies the condition ...

We investigate semiclassical backreaction on a conical naked singularity space-time with a negative cosmological constant in (2 + 1)-dimensions. In particular, we calculate the renormalized quantum stress-energy tensor for ...

Transmission systems worldwide were designed predominantly for operation with conventional synchronous generation but are now evolving to include the integration of large amounts of renewable generation. These generators ...

Transmission systems worldwide were designed predominantly for operation with conventional synchronous generation but are now evolving to include the integration of large amounts of renewable generation. These generators ...

In this short communication, we analyse the potential of the natural stress formulation (NSF) (i.e. aligning the stress basis along streamlines) for computing planar flows of an Oldroyd-B fluid around sharp corners. This ...