Non-Contact Measuring Section in the Problem of Hypersonic Aerodynamics

2019 ◽  
Keyword(s):  
Measuring Section ◽  
Hypersonic Aerodynamics

Contactless Measuring Section in Hypersonic Aerodynamics

2019 ◽  
Vol 60 (4) ◽  
pp. 639-643
Author(s):  
S. I. Gerasimov ◽  
V. I. Erofeev ◽  
A. G. Sirotkina ◽  
A. V. Zubankov ◽  
R. V. Gerasimova
Keyword(s):  
Measuring Section ◽  
Hypersonic Aerodynamics

Model Reduction for Steady Hypersonic Aerodynamics via Conservative Manifold Least-Squares Petrov–Galerkin Projection

AIAA Journal ◽  
2021 ◽  
pp. 1-17
Author(s):  
Patrick J. Blonigan ◽  
Francesco Rizzi ◽  
Micah Howard ◽  
Jeffrey A. Fike ◽  
Kevin T. Carlberg
Keyword(s):  
Least Squares ◽  
Model Reduction ◽  
Galerkin Projection ◽  
Hypersonic Aerodynamics

Research of the flow procedures in a pressure sewer system

2003 ◽  
Vol 47 (7-8) ◽  
pp. 351-356
Author(s):  
C. Dohse ◽  
H. Eckstädt
Keyword(s):  
Land Reclamation ◽  
Flow Conditions ◽  
Sewer System ◽  
Flow Meters ◽  
Initial Information ◽  
Pressure Pipe ◽  
Pumping Stations ◽  
Hydraulic Conditions ◽  
Measuring Section ◽  
The University

At the Institute of Land Reclamation, Hydrology and Sanitary Engineering of the University at Rostock the pressure and flow ratios are examined within a measuring section in the pressure dewatering system on the Darfl peninsula. The objective of the research project is the knowledge upgrade about the highly unsteady hydraulic conditions in a pressure sewer system. This paper firstly presents the method and the dimensioning of pressure dewatering systems, which can be done using either the peak effluent method or the statistical method; the examination program will be explained. The examination includes pressure difference measuring with two pressure meters and flow data measuring via magnetic-inductive flow meters. Additionally the pump running times of 15 pumping stations, as well as the compressor action of the pressure pipe rinsing station are continuously and temporarily recorded and saved. Finally the measuring results which provide initial information about the pressure and flow conditions in a pressure dewatering system will be presented. The effects of the rinsing, the low pressure differences, the air cushions, the seasonal differences as well as the daily development graphs of the wastewater production are all clearly visible.

scholarly journals On Measuring Section Thickness

2001 ◽  
Vol 9 (4) ◽  
pp. 17-17
Author(s):  
Ron Doole
Keyword(s):  
Film Thickness ◽  
Cross Section ◽  
Accurate Result ◽  
The Other ◽  
Section Thickness ◽  
Plan View ◽  
Tilt Axis ◽  
Measuring Section ◽  
Easy Case

Section thickness can be measured by placing beads of some kind on the top and bottom surfaces of the section. This is then a simple parallax problem.Imagine the specimen in cross section. If there are two particles, one vertically above the other they are separated by the film thickness T. Tilt the film through an angle A and in plan view the particles will separate by a distance D. This can also be extended to account for two particles not vertically above each other but I'll stick to the easy case for the explanation.Take two negatives one at zero tilt and one at tilt of A and measure the separation D. The thickness can be calculated by T=D/sinA.The direction of the tilt axis must be known for the measurements and it is easy to see that the larger the tiit angle and the more accurately the separation is measured, the more accurate the measurement will be. Tilt at both positive and negative angles to get a more accurate result.

Model Reduction of Hypersonic Aerodynamics with residual minimization techniques

2022 ◽  
Author(s):  
David S. Ching ◽  
Patrick J. Blonigan ◽  
Francesco Rizzi ◽  
Jeffrey A. Fike
Keyword(s):  
Model Reduction ◽  
Hypersonic Aerodynamics ◽  
Residual Minimization
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