Results 41 to 50 of about 1,171,519 (288)

Finite-Volume Discretizations and Immersed Boundaries [PDF]

, 2009
In this chapter, an accurate method, using a novel immersed-boundary approach, is presented for numerically solving linear, scalar convection problems. As is standard in immersed-boundary methods, moving bodies are embedded in a fixed Cartesian grid. The essence of the present method is that specific fluxes in the vicinity of a moving body are computed
Y.J. Hassen (Yunus), B. Koren (Barry)
openaire   +3 more sources

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Data-driven velocity reconstruction for immersed boundary methods

Kongqi donglixue xuebao
The immersed boundary method (IBM) is widely used for incompressible flows with complex geometric boundaries. Among its variants, the direct forcing method is computationally and programmatically straightforward and effectively captures near-wall flow ...
Shilong Lin, Shufan Zou, Xiaogang Deng
doaj   +1 more source

Efficient Immersed Boundary Method for Strong Interaction Problem of Arbitrary Shape Object with the Self-Induced Flow

Journal of Fluid Science and Technology, 2007
An immersed boundary method is improved and applied to 2-D flow fields involving a single stationary/moving object. The present immersed boundary method employs a body force proportional to a solid volume fraction for coupling the solid and fluid motions
Yoshihiko YUKI, Shintaro TAKEUCHI, Takeo KAJISHIMA   +2 more
doaj   +1 more source

Simulations of the Whirling Instability by the Immersed Boundary Method [PDF]

SIAM Journal on Scientific Computing, 2004
Summary: When an elastic filament spins in a viscous incompressible fluid it may undergo a whirling instability, as studied asymptotically by \textit{C. W. Wolgemuth, T. R. Powers}, and \textit{R. E. Goldstein} [Phys. Rev. Lett. 84, 16--23 (2000)]. We use the immersed boundary (IB) method to study the interaction between the elastic filament and the ...
Sookkyung Lim, Charles S. Peskin
openaire   +3 more sources

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

An Efficient Immersed Boundary Method for Solving the Unsteady Flow through Actual Geometries of Reed Valves [PDF]

, 2012
In refrigeration compressors, the suction and discharge valves are responsible for the retention of the refrigerant from the suction chamber to the cylinder and passage from the cylinder to the discharge chamber.
Barbi, Franco, Gasche, José Luiz, Villar, Millena Martins   +2 more
core   +1 more source

On Advances of Diffuse‑Interface Immersed Boundary Method and Its Applications

Transactions of Nanjing University of Aeronautics and Astronautics
The diffuse-interface immersed boundary method （IBM） possesses excellent capabilities for simulating flows around complex geometries and moving boundaries.
YANG Liming, SHU Chang, DU Yinjie, WU Jie, WANG Yan   +4 more
doaj   +1 more source

Immersed Boundary-Finite Difference Lattice Boltzmann Method for Liquid-Solid Two-Phase Flows

Journal of Fluid Science and Technology, 2011
An immersed boundary method based on a finite difference lattice Boltzmann method (IB-FDLBM) is presented. The FDLBM solves the discrete Boltzmann equation including an additional collision term by using finite difference schemes.
Roberto ROJAS, Takeshi SETA, Kosuke HAYASHI, Akio TOMIYAMA   +3 more
doaj   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

FEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt, Ana‐Maria Sandru, Georg Vucak, Sebastian Didusch, Biljana Riemelmoser, Karin Ehrenreiter, Markus Hartl, Lukas A. Huber, Manuela Baccarini   +8 more
wiley   +1 more source