Results 261 to 270 of about 46,682 (313)
Some of the next articles are maybe not open access.
1984
A central goal in the thermal design of tubular heat exchangers is to utilize the available shellside pressure loss to maximize the shellside film coefficient. The most effective means of accomplishing this objective is to arrange the shellside fluid to flow across the tube bank. Single segmental baffles (Fig.
Krishna P. Singh, Alan I. Soler
openaire +1 more source
A central goal in the thermal design of tubular heat exchangers is to utilize the available shellside pressure loss to maximize the shellside film coefficient. The most effective means of accomplishing this objective is to arrange the shellside fluid to flow across the tube bank. Single segmental baffles (Fig.
Krishna P. Singh, Alan I. Soler
openaire +1 more source
Active Control Of Flow-induced Vibration
Journal of Sound and Vibration, 1993Abstract The active control of flow-induced oscillations, specifically, vortex-induced oscillations of circular cylinders and galloping oscillations of circular cylinders and galloping oscillations of a square prism, are considered. In the case of vortex-induced oscillations, the vibrating cylinder is modeled as a single-degree-of-freedom (sdof ...
Venkatraman, K., Narayanan, S.
openaire +2 more sources
Flow-Induced Vibrations in Bellows
Journal of Pressure Vessel Technology, 1989Abstract Flow-induced vibrations have caused fatigue failures in a number of bellows units carrying cooling water flows. The bellows are made from Inconel 600 and have a nominal inside diameter of 20 mm. This paper presents the results of a project undertaken to study these vibrations and to develop a method for vibration alleviation ...
D. S. Weaver, P. Ainsworth
openaire +1 more source
Flow-induced vibrations and the Landau equation
Journal of Fluids and Structures, 2013Abstract The initial and general transient temporal behaviours of flow induced vibrations were studied particularly with regard to the extent with which self-excited, flow-induced vibrations can be described by the Landau equation. Three different cases are studied experimentally, using bodies with generic shape.
openaire +3 more sources
Flow induced vibration of thermowells
ISA Transactions, 1999Abstract Traditional thermowell selection methods based on velocity rating tables are no longer a match for the demands of modern processes, and a new approach, involving dynamic analysis methods, is needed. Starting with the simplest possible thermowell, a uniform cantilever subjected to a combination of vortex shedding and drag forces, the dynamic ...
David S Bartran +3 more
openaire +1 more source
ASPECTS OF FLOW-INDUCED VIBRATION
Journal of Fluids and Structures, 2001Phenomena associated with flow-induced transverse oscillation of an elastically mounted body are considered. The use of a recently introduced parameter that combines the effect of mass and elasticity—effective elasticity—is exploited to demonstrate the predictive value of the new approach and to provide insights into solution branching, the maximum ...
Leonard, A., Roshko, A.
openaire +2 more sources
Multiphase Flow Induced Vibrations at High Pressure
Volume 4: Fluid-Structure Interaction, 2020Abstract High pressure experiments were done to determine the pressure effect on multiphase induced forces. To that end, a series of water/gas, oil/gas and oil/water/gas vibrations measurements were performed at 10, 25, 45 and 80 bar at different liquid and gas rates in a horizontal, 2″, double Uloop test section installed at the Equinor
Belfroid, S.P.C. +3 more
openaire +2 more sources
Suppressing Flow-Induced Vibrations by Parametric Excitation
Nonlinear Dynamics, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fatimah, S., Verhulst, F.
openaire +2 more sources
The Flow-Induced Vibration of Cylinders in a Cross Flow
5th International Symposium on Fluid Structure Interaction, Aeroelasticity, and Flow Induced Vibration and Noise, 2002Flow-induced vibrations occur in general heat exchangers and nuclear reactors. They cause the tube failures through fretting wear or fatigue. Fluid elastic instability may lead to vibration amplitudes large enough to cause tube-to-tube clashing and in such cases will lead to relatively rapid failures.
W. Takano +4 more
openaire +1 more source
Optimal Control of Flow-Induced Vibration of Pipeline
Dynamics and Control, 2001The authors derive the state equations, combining known equations for the dynamic bending of pipes with the effect of axial flow of the fluid. The transverse action of the fluid due to bending of the pipe is combined with the Euler-Bernoulli beam equation. The authors assign identical boundary conditions to all pipe supports. The dimensionless equation
Biswas, Saroj K., Ahmed, N. U.
openaire +1 more source