Heat Transfer to the Insulator Wall of a Linear MGD Accelerator

1971 ◽  
Vol 93 (3) ◽  
pp. 264-270 ◽  
Author(s):  
Robert A. Cochran ◽  
James A. Fay
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Experimental Investigation ◽  
Shock Tube ◽  
Energy Fluxes ◽  
Test Gas ◽  
Boundary Layer Analysis ◽  
Layer Analysis ◽  
Overall Performance ◽  
Experimental Scatter

An experimental investigation of the rate of heat transfer to the insulator wall of a quasi-steady magnetogasdynamic accelerator is described. The experiments were conducted in an accelerator section attached to the end of a shock tube using argon as the test gas. The measurements are compared with a Hartmann boundary-layer analysis, which correlates the data within the experimental scatter. Based on this theory, estimates of the current shorting through the boundary layer and energy fluxes to the wall are made and compared with the accelerator’s overall performance.

scholarly journals Boundary layer analysis and heat transfer of a nanofluid

2014 ◽  
Vol 17 (2) ◽  
pp. 401-412 ◽  
Author(s):  
M. M. MacDevette ◽  
T. G. Myers ◽  
B. Wetton
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Boundary Layer Analysis ◽  
Layer Analysis

Calculation of Three-Dimensional Boundary Layers on Rotating Turbine Blades

1987 ◽  
Vol 109 (1) ◽  
pp. 41-49 ◽  
Author(s):  
O. L. Anderson
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Turbine Blades ◽  
Three Dimensional ◽  
Pressure Surface ◽  
Boundary Layer Analysis ◽  
Layer Analysis ◽  
Edge Conditions ◽  
Dimensional Boundary ◽  
Pressure Suction

An assessment has been made of the applicability of a three-dimensional boundary-layer analysis to the calculation of heat transfer and streamline flow patterns on the surfaces of both stationary and rotating turbine passages. In support of this effort, an analysis has been developed to calculate a general nonorthogonal surface coordinate system for arbitrary three-dimensional surfaces and also to calculate the boundary-layer edge conditions for compressible flow using the surface Euler equations and experimental pressure distributions. Using available experimental data to calibrate the method, calculations are presented for the endwall, and suction surfaces of a stationary cascade and for the pressure surface of a rotating turbine blade. The results strongly indicate that the three-dimensional boundary-layer analysis can give good predictions of the flow field and heat transfer on the pressure, suction, and endwall surfaces in a gas turbine passage.

A Physical Model of the Evaporating Meniscus

1988 ◽  
Vol 110 (1) ◽  
pp. 201-207 ◽  
Author(s):  
A. Mirzamoghadam ◽  
I. Catton
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Steady State ◽  
Temperature Distribution ◽  
Copper Plate ◽  
Integral Approach ◽  
Boundary Layer Analysis ◽  
Layer Analysis ◽  
And Performance ◽  
Meniscus Profile

Transport phenomena associated with the heating of a stationary fluid near saturation by an inclined, partially submerged copper plate were studied analytically. Under steady-state evaporation, the meniscus profile was derived using an appropriate liquid film velocity and temperature distribution in an integral approach similar to boundary layer analysis. Derivation of the meniscus profile led to predicting heat transfer and performance as a function of angle of inclination of the plate.

An Improved Integral Procedure for Compressible Laminar Boundary-Layer Analysis

1961 ◽  
Vol 28 (1) ◽  
pp. 9-20 ◽  
Author(s):  
Kwang-Tzu Yang
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Exact Solutions ◽  
Laminar Boundary Layer ◽  
Pressure Gradients ◽  
Boundary Layer Analysis ◽  
Surface Temperatures ◽  
Layer Analysis ◽  
Variable Surface ◽  
Integral Procedure

A fundamental improvement of any one-parameter integral procedure for compressible laminar boundary-layer analysis is described. It is shown, by means of comparisons with exact solutions covering cases of favorable, zero, and adverse pressure gradients, and of constant and variable surface temperatures with and without heat transfer, that in all cases very significant improvements in the calculated results are attained, and also that this improvement is accomplished simply by evaluating integrals.

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