Transient Behavior of a Stably Stratified Homogeneous Turbulent Flow

1987 ◽  
pp. 184-190 ◽  
Author(s):  
R. C. Sanderson ◽  
J. C. Hill ◽  
J. R. Herring
Keyword(s):  
Turbulent Flow ◽  
Transient Behavior

Wax Deposition in Laminar and Turbulent Flow in Pipelines

2012 ◽  
Author(s):  
H. B. Veiga ◽  
L. B. Souza ◽  
L. R. Minchola ◽  
L. F. Palomino ◽  
A. O. Nieckele ◽  
...  
Keyword(s):  
Turbulent Flow ◽  
Rectangular Channel ◽  
Transient Behavior ◽  
Flow Conditions ◽  
Wax Deposition ◽  
Ongoing Research ◽  
Laminar And Turbulent Flow ◽  
Microscope Imaging ◽  
Averaged Models ◽  
Channel Configuration

Accurate prediction of wax deposition rates and deposited wax spatial distribution is invaluable information for the design of subsea lines. Unfortunately wax deposition mechanisms are still not fully understood. The present paper is part of an ongoing research program developed with the objective of identifying the relative importance of the different wax deposition mechanisms proposed in the literature. To this end, laboratory experiments conducted at controlled conditions were performed in a geometry formed by a rectangular channel having two glass walls and two heat exchanging walls. A laboratory solution of wax and solvent was pumped through the channel while the heat exchanging walls were cooled. The wax deposit formed was optically measured by a traversing microscope imaging the deposit through the glass walls. This setup allowed the determination of both, the temporal and spatial evolution of the wax deposit. Laminar and turbulent flow conditions were investigated. Numerical simulation of the equations governing conservation of mass, momentum, energy and concentration were solved for the channel configuration employing the known thermophysical properties of the solution used in the tests. A comparison of measured and predicted results yielded good agreement for the steady state distribution of the deposited wax for laminar flow conditions. The transient behavior of the deposit was, however, under predicted by the calculations. Turbulent flow predictions were obtained using Reynolds-averaged models. The simulations were able to predict the correct trends of thinner deposits when compared to laminar deposition.

An Introduction to Turbulent Flow

2000 ◽  
Author(s):  
Jean Mathieu ◽  
Julian Scott
Keyword(s):  
Turbulent Flow

Modal Analysis of Turbulent Flow near an Inclined Bank–Longitudinal Structure Junction

2021 ◽  
Vol 147 (3) ◽  
pp. 04020100
Author(s):  
Nasser Heydari ◽  
Panayiotis Diplas ◽  
J. Nathan Kutz ◽  
Soheil Sadeghi Eshkevari
Keyword(s):  
Turbulent Flow ◽  
Modal Analysis ◽  
Longitudinal Structure

Numerical simulation of subsonic turbulent flow of oscillating NACA 0015 airfoi

2018 ◽  
Vol 2 ◽  
pp. 133-145
Author(s):  
D.O. Redchyts ◽  
◽  
S.V. Moiseenko ◽  
Keyword(s):  
Numerical Simulation ◽  
Turbulent Flow ◽  
Naca 0015

LIMITATIONS OF THE STOCHASTIC APPROACH IN TWO-PHASE TURBULENT FLOW CALCULATIONS

1996 ◽  
Vol 6 (2) ◽  
pp. 211-225 ◽  
Author(s):  
Keh-Chin Chang ◽  
Wen-Jing Wu ◽  
Muh-Rong Wang
Keyword(s):  
Turbulent Flow ◽  
Stochastic Approach ◽  
Two Phase

Analysis of Frost Growth through a Two-Dimensional Duct with Turbulent Flow

2008 ◽  
Vol 39 (4) ◽  
pp. 347-370
Author(s):  
M. Salmanpour ◽  
O. Nourani Zonouz ◽  
Mahmood Yaghoubi
Keyword(s):  
Turbulent Flow ◽  
Two Dimensional ◽  
Frost Growth
Sign in / Sign up

Export Citation Format

Share Document