نتایج جستجو برای: finite vertical cylinder

تعداد نتایج: 367687  

2017
Longbin Tao Hao Song Subrata Chakrabarti

6 The scaled boundary finite-element method (SBFEM) is a novel semi-analytical method 7 developed in the elasto-statics and elasto-dynamics areas that has the advantages of com8 bining the finite-element method with the boundary-element method. The SBFEM method 9 weakens the governing differential equation in the circumferential direction and solves the 10 weakened equation analytically in the ...

2003
Dmitri A. Uzdensky

We investigate the axisymmetric magnetosphere of an aligned rotating magnetic dipole surrounded by an ideal force-free plasma. We concentrate on the magnetic field structure around the point of intersection of the separatrix between the open and closed field-line regions and the equatorial plane. We first study the case where this intersection point is located at the Light Cylinder. We find tha...

2011
P. Meunier

Despite the large amount of research devoted to bluff body wakes [1], very few studies have focused on stratified wakes despite their obvious applications to geophysical flows. Moreover, most of these studies have studied the turbulent regime in the wake of a sphere or an ellipsoid [2,3], due to its naval applications for submarine wakes. These bluff bodies have a finite height, which leads to ...

2012
S. Mehran S. Rouhi F. Rouzbahani E. Haghgoo

In this paper dynamics of a vapour bubble generated due to a local energy input inside a vertical rigid cylinder and in the absence of buoyancy forces is investigated. Different ratios of the diameter of the rigid cylinder to the maximum radius of the bubble are considered. The Boundary Integral Equation Method is employed for numerical simulation of the problem. Results show that during the co...

An exact study on temperature field in a hollow cylinder of finite length which is influenced by a surrounding with harmonic boundary condition is presented. To simulate an idealized situation, it is supposed that the cylinder is homogeneous and isotropic with physical properties independent of temperature and time. Here we impose a harmonic boundary condition on the external surface of the fin...

2010
Heather A. Clark Bruce R. Sutherland

We report upon an experimental study of internal gravity waves generated by the large-amplitude vertical oscillations of a circular cylinder in uniformly stratified fluid. Quantitative measurements are performed using a modified synthetic schlieren technique for strongly stratified solutions of NaCl or NaI. The oscillatory forcing leads to the development of turbulence in the region bounding th...

Journal: :international journal of automotive engineering 0
h. ashouri

loading conditions and complex geometry have led the cylinder heads to become the most challenging parts of diesel engines. one of the most important durability problems in diesel engines is due to the cracks valves bridge area. the purpose of this study is a thermo-mechanical analysis of cylinder heads of diesel engines using a two-layer viscoplasticity model. in this article, mechanical prope...

Journal: :archives of trauma research 0
mitsuaki noda department of orthopedics, konan hospital, kobe, japan; department of orthopedics, konan hospital, kobe, japan. tel: +81-788512161, fax: +81-788210962 yasuhiro saegusa department of orthopedics, konan hospital, kobe, japan masayasu takahashi department of orthopedics, konan hospital, kobe, japan daichi tezuka department of mechanical engineering, graduate school of engineering, kobe university, kobe, japan kazuhiko adachi department of mechanical engineering, graduate school of engineering, kobe university, kobe, japan kazuya naoi department of mechanical engineering, graduate school of engineering, kobe university, kobe, japan

conclusions the most relevant finding was that hook pinning in pauwels type iii fracture may result in delayed :union: or non:union: due to significantly increased stress of a traction force at the fracture site that works to displace the fracture. however, in a pauwels type i fracture, increased compression stress contributes to stabilize it. surgeons are recommended not to treat pauwels type ...

Journal: :Fluids 2021

We present the results of a combined experimental and numerical study free-surface flow behind finite height rigid vertical cylinder. The experiments measure drag wake angle on cylinders different diameters for range velocities corresponding to 30,000 <Re< 200,000 0.2<Fr<2 where Reynolds Froude numbers are based diameter. three-dimensional large eddy simulations use conservative lev...

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