Stagnation-point forced convection in two-phase flow.

AIAA Journal ◽  
1967 ◽  
Vol 5 (6) ◽  
pp. 1182-1183 ◽  
Author(s):  
HSU-CHIEH YEH ◽  
WEN-JEI YANG
Keyword(s):  
Stagnation Point ◽  
Forced Convection ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase

Void Fraction and Vapor and Liquid Temperatures: Local Measurements in Two-Phase Flow Using a Microthermocouple

1973 ◽  
Vol 95 (3) ◽  
pp. 365-370 ◽  
Author(s):  
J. M. Delhaye ◽  
R. Semeria ◽  
J. C. Flamand
Keyword(s):  
Temperature Measurement ◽  
Forced Convection ◽  
Void Fraction ◽  
Two Phase Flow ◽  
Pool Boiling ◽  
Phase Flow ◽  
Subcooled Boiling ◽  
Two Phase ◽  
Local Measurements ◽  
Phase Liquid

A technique is described which enables the detection of the phase (liquid or vapor) in steam-water two-phase flow and the temperature measurement of each phase, using the hot junction of a microthermocouple. The signals are processed with a multichannel analyzer in order to obtain the amplitude histograms of the temperature. Significant results are obtained in pool boiling, forced convection subcooled boiling, and flashing flow of water.

Two-Phase Flow Analysis With the Two-Fluid MPS Method: I — Analysis of the Forced Convection Boiling

2003 ◽  
Author(s):  
Hideki Horie ◽  
Yuichi Yamamoto ◽  
Noriyuki Shirakwa
Keyword(s):  
Forced Convection ◽  
Differential Operators ◽  
Two Phase Flow ◽  
Particle Interaction ◽  
Flow Analysis ◽  
Navier Stokes ◽  
Phase Flow ◽  
Two Phase ◽  
Navier Stokes Equation ◽  
Two Fluid

A particle interaction method called MPS (the Moving Particle Semi-implicit method), which formulates the differential operators in Navier-Stokes’ equation as interactions between particles characterized by a kernel function, has been developed in recent years. We have extended this method to a two-fluid system with a potential-type surface tension in order to analize the two-phase flow without experimental correlation. This extended method (Two-Fluid MPS: TF_MPS) was successfully applied to a forced convection boiling experiment.

A Dynamic Programming Approach to Stabilize Forced-Convection Two-Phase Flow Systems With “Pressure-Drop” Oscillations

1970 ◽  
Vol 92 (1) ◽  
pp. 94-100
Author(s):  
C. J. Maday
Keyword(s):  
Dynamic Programming ◽  
Pressure Drop ◽  
Forced Convection ◽  
Two Phase Flow ◽  
Oscillatory Behavior ◽  
Order System ◽  
Programming Approach ◽  
Phase Flow ◽  
Two Phase ◽  
Dynamic Programming Approach

Optimization theory is applied to a forced-convection two-phase flow system with heat addition described by a second-order system of differential equations. The mathematical model describes a physical system in which low-frequency pressure-drop oscillations occur, and these oscillations may either grow or decay with time depending on whether the system is stable. The dynamic programming approach is applied to obtain a suboptimal feedback control system which is very stable and exhibits no oscillatory behavior. A system is synthesized whereby pressure and temperature fluctuations are used to control heat-input fluctuations in order to provide stability.

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