scholarly journals Effects of Corner Radius on Stagnation-Point Velocity Gradients on Blunt Axisymmetric Bodies

1966 ◽  
Vol 3 (10) ◽  
pp. 1567-1567 ◽  
Author(s):  
ERNEST V. ZOBY ◽  
EDWARD M. SULLIVAN
Keyword(s):  
Stagnation Point ◽  
Velocity Gradients ◽  
Corner Radius ◽  
Point Velocity ◽  
Axisymmetric Bodies

Stagnation-point velocity gradients for spherical segments in hypersonic flow

AIAA Journal ◽  
1969 ◽  
Vol 7 (10) ◽  
pp. 2040-2041 ◽  
Author(s):  
LARRY L. TRIMMER ◽  
EDWARD L. CLARK
Keyword(s):  
Hypersonic Flow ◽  
Stagnation Point ◽  
Velocity Gradients ◽  
Point Velocity

An Empirical Formula for Stagnation Point Velocity Gradient for Spheres and Circular Cylinders in Hypersonic Flow

1965 ◽  
Vol 69 (654) ◽  
pp. 407-408 ◽  
Author(s):  
D. R. Topham
Keyword(s):  
Stagnation Point ◽  
Velocity Gradient ◽  
Stream Flow ◽  
Free Stream ◽  
Circular Cylinders ◽  
Stream Velocity ◽  
Flow Properties ◽  
Transfer Rates ◽  
Point Velocity ◽  
Image Position

When stagnation heat transfer rates are expressed in terms of free stream flow properties, the following combination of terms is found to occur: —where ps pressure at the stagnation pointp∞free stream pressureU∞free stream velocityDnose diameterßstagnation point velocity gradient.

Transient Extinction of Counter flow Diffusion Flame

1982 ◽  
Vol 24 (3) ◽  
pp. 113-117 ◽  
Author(s):  
T. Saitoh ◽  
S. Ishiguro
Keyword(s):  
Boundary Layer ◽  
Stagnation Point ◽  
Diffusion Flame ◽  
Transient Analysis ◽  
Linear Time ◽  
Point Boundary ◽  
Boundary Layer Flows ◽  
Counter Flow ◽  
Acceleration And Deceleration ◽  
Point Velocity

A transient analysis was performed for extinction of the counter flow diffusion flame utilizing the assumptions of inviscid, incompressible, and laminar stagnation-point boundary layer flows. The unsteadiness was induced via linear time variation of the stagnation point velocity gradient. The physical meaning of the middle solution of the quasi-steady theory was clarified. The effects of acceleration and deceleration of the flow were examined and it was found that strong acceleration tends to support the flame up to a small Damkohler number, which implies that the flame strength becomes large for flames under acceleration.

scholarly journals Heat Transfer in a Periodic Boundary Layer Near an Axisymmetric Stagnation Point on a Circular Cylinder

1981 ◽  
Author(s):  
R. S. R. Gorla ◽  
F. Jankowski ◽  
D. Textor
Keyword(s):  
Boundary Layer ◽  
Stagnation Point ◽  
Periodic Boundary ◽  
Numerical Solutions ◽  
Frequency Parameter ◽  
The Body ◽  
Oncoming Flow ◽  
Velocity Gradients ◽  
Reduced Frequency ◽  
Periodic Boundary Layer

An analysis is presented to investigate the time-mean characteristics of the laminar boundary layer near an axisymmetric stagnation point when the velocity of the oncoming flow relative to the body oscillates. Different solutions are obtained for the small and high values of the reduced frequency parameter. Numerical solutions for the velocity and temperature functions are presented and the wall values of the velocity gradients and temperature gradients are tabulated.

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