Nodal analysis identifies ESP wellhead choke problemsAs shown with a nodal analysis, the use of wellhead chokes on electrical submersible-pumped wells causes high hydraulic losses across the chokes and wastes considerable energy.Gabor TakacsOil and Gas Journal...
On the other hand, we also study the stability of the inverse nodal problem. The approach is based on the asymptotic expressions for the nodal points. We establish a quasinodal map between the space of p-Laplacian operators and the space of quasinodal sequences induced by (1.4)-(1.7), ...
Keywords: Hardy Term; Critical Exponent; Slightly Subcritical Problems; Nodal Solutions; Blow-Up Solutions; Multi-Bubble Solutions; Singular Perturbation Methods MSC 2010: 35B44; 35B33; 35J60 1 Introduction The paper is concerned with the semilinear singular problem (1.1) { - Δ u - μ ...
The proof of the existence of solution to our problem is based on a mountain pass critical point approach with the Cerami condition at level c.1 Introduction Let \(\Omega \subset \mathbb{R}^{n}\) be an open bounded domain with a smooth boundary. Here, we focus on the following ...
The overall objective of nanoCOPS is to advance a methodology for circuit-and-system-level modelling and simulation based on best practice rules to deal with coupled electromagnetic field-circuit-heat problems as well as coupled electro-thermal-stress problems that emerge in nanoelectronic designs. ...
In this article a generalized finite difference method (GFDM), which is a meshless method based on Taylor series expansions and weighted moving least squares, is proposed to solve the elliptic interface problem. This method turns the original elliptic interface problem to be two coupled elliptic non...
Buscaglia. A discontinuous-Galerkin-based immersed boundary method. International Journal for Numerical Methods in Engineering, 76:427–454, 2008. 24. J. Mohd-Yusof. Combined immersed boundaries/B-splines methods for simulations of flows in complex geometries. CTR annual research briefs, Stanford ...
Note that their variational methods were based on properties of the Fenchel conjugate. However, for more general nonlocal problems of ordinary differential equations and dynamic equations on time scales, it is very difficult to find the variational structure of the above problems. To overcome this ...
In particular, we develop an edge-bubble stabilized finite element method for plane Poiseuille fluid flow based on the second-gradient theory of Fried and Gurtin [2]. The method begins by using Lagrange multipliers to enforce constraints across inter-element boundaries, and decomposing the velocity ...
The surrounding cell method based on the S-FEM for analysis of FSI problems dealing with an immersed solid 2018, Computer Methods in Applied Mechanics and Engineering Citation Excerpt : Kannan et al. [32] developed an overlapping grid method in which the overlapped region between the moving and...