Fully Coupled Body Force–Engine Performance Methodology for Boundary Layer Ingestion

A hybrid method for singularly perturbed delay boundary value problems exhibiting a right boundary layer

The aim of this paper is to present a numerical method for singularly perturbed convection-diffusion problems with a delay. The method is a combination of the asymptotic expansion technique and the reproducing kernel method (RKM). First an asymptotic expansion for the solution of the given singularly perturbed delayed boundary value problem is constructed. Then the reduced regular delayed diffe...

Nvestigation of a Boundary Layer Problem for Perturbed Cauchy-Riemann Equation with Non-local Boundary Condition

Boundary layer problems (Singular perturbation problems) more have been applied for ordinary differential equations. While this theory for partial differential equations have many applications in several fields of physics and engineering. Because of complexity of limit and boundary behavior of the solutions of partial differential equations these problems considered less than ordinary case. In ...

Efficient Simulation of Fully Coupled Wave-body Interactions Using a Sharp Interface Immersed-boundary/level-set Method

In this paper, some recent progress toward the prediction of fully coupled wave-body interactions using a sharp interface immersed-boundary/level-set method is presented. A noniterative strong coupling scheme for the fluid motion and rigid body dynamics is adopted by utilizing a non-inertial reference frame attached to the solid body. The combination of this scheme with the previous immersed-bo...

Multiple foreign body ingestion.

Tracheoesophageal fistula following disc battery ingestion and foreign body impaction

Background: Ingestion of foreign bodies may result in the formation of a tracheoesophageal fistula (TEF), which causes severe morbidity in children. We describe four cases of TEF, who underwent emergent surgery for repair. Case presentation: In this report, we present about four patients aged between 9 months to 2.5 years, who referred due to disc battery ingestion. There were two boys and two ...