FLOW FIELD TEMPERATURE DISTRIBUTION DETERMINATION USING ROTATIONAL RAMAN SPECTROSCOPY

1974 ◽  
Author(s):  
J. R. Smith ◽  
Warren H. Giedt
Keyword(s):  
Raman Spectroscopy ◽  
Temperature Distribution ◽  
Flow Field ◽  
Field Temperature

Advanced Modeling of the Dynamics of Vanadium Redox Flow Batteries

2015 ◽  
Author(s):  
Yun Wang ◽  
Sung Chan Cho
Keyword(s):  
Experimental Data ◽  
Temperature Distribution ◽  
Flow Field ◽  
Electrochemical Reaction ◽  
Redox Flow Batteries ◽  
Field Temperature ◽  
Flow Batteries ◽  
Numerical Tool ◽  
And Control ◽  
Vanadium Redox

In this paper, a multi-dimensional dynamic model of vanadium Redox Flow Batteries (RFB) is employed to predict battery performance and internal operating condition during charge and discharge. The model consists of a set of partial differential equations of mass, momentum, species, charges, and energy conservation, in conjunction with the electrode’s electrochemical reaction kinetics. After validated against experimental data for a vanadium RFB, flow field, temperature distribution, and reactant evolution are presented. The developed numerical tool is extremely useful in optimizing RFB design and control.

scholarly journals Numerical Simulation of Temperature Distribution in the Glass Fiber Epoxy Composites during Microwave Curing

2018 ◽  
Vol 206 ◽  
pp. 03001
Author(s):  
X Zhang ◽  
X L Chang ◽  
R L Ma ◽  
L Zhang ◽  
X D Chen ◽  
...  
Keyword(s):  
Temperature Distribution ◽  
Glass Fiber ◽  
Three Dimensional ◽  
Coupled Model ◽  
Curing Process ◽  
Epoxy Ring ◽  
Microwave Curing ◽  
Composite Ring ◽  
Initial Stage ◽  
Field Temperature

A three-dimensional coupled model of electromagnetic field, temperature field and curing degree field was established. Based on this model, the simulation of microwave curing process of glass fiber epoxy ring was realized, and the temperature distribution at different time was obtained. Numerical results indicate that the temperature difference within the composite ring is mainly formed in the initial stage during microwave curing.

Axial Transport Effects on Natural Convection Inside of an Open-Ended Annulus

1991 ◽  
Vol 113 (3) ◽  
pp. 627-634 ◽  
Author(s):  
K. Vafai ◽  
J. Ettefagh
Keyword(s):  
Temperature Distribution ◽  
Flow Field ◽  
Three Dimensional ◽  
Transient Behavior ◽  
Temperature Fields ◽  
Two Dimensional ◽  
Three Dimensional Flow ◽  
Subsequent Effect ◽  
Transport Effects ◽  
Temperature And Velocity Fields

The present work centers around a numerical three-dimensional transient investigation of the effects of axial convection on flow and temperature fields inside an open-ended annulus. The transient behavior of the flow field through the formation of a three-dimensional flow field and its subsequent effect on the temperature distribution at different axial locations within the annulus were analyzed by both finite difference and finite element methods. The results show that the axial convection has a distinctly different influence on the temperature and velocity fields. It is found that in the midportion of the annulus a two-dimensional assumption with respect to the temperature distribution can lead to satisfactory results for Ra<10,000. However, such an assumption is improper with respect to the flow field. Furthermore, it is shown that generally the errors for a two-dimensional assumption in the midportion of the annulus are less at earlier times (t<50Δt) during the transient development of the flow and temperature fields.

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