Oblique Shock Angle
Oblique Shock Angle - Related Videos
06:30
Fabrication of Ultra-thin Color Films with Highly Absorbing Media Using Oblique Angle Deposition
0 Views •
Cited by 2 •
2017
We present a detailed method for fabricating ultra-thin color films with improved characteristics for optical coatings. The oblique angle deposition technique using an electron beam evaporator allows improved color tunability and purity. Fabricated films of Ge and Au on Si substrates were analyzed by reflectance measurements and color information conversion.
16:31
Fixed Volume or Fixed Pressure: A Murine Model of Hemorrhagic Shock
0 Views •
Cited by 24 •
2011
The Hemorrhagic Shock model has been a reliable and reproducible resource facilitating the identification and understanding of signaling cascades associated with inflammation and end-organ damage after trauma. This article provides a step-by-step description of surgical and mechanical aspects associated with the Hemorrhagic Shock experimental procedure in mice.
09:10
The Preparation of Oblique Spinal Cord Slices for Ventral Root Stimulation
0 Views •
Cited by 1 •
2016
We show how to prepare oblique slices of the spinal cord in young mice. This preparation allows for the stimulation of the ventral roots.
09:48
Drosophila Adult Olfactory Shock Learning
0 Views •
Cited by 36 •
2014
The method to measure adult Drosophila associative memory is described. The assay is based on the ability of the fly to associate an odor presented with a negative reinforcer (electric shock) and then recall this information at a later time, allowing memory to be measured.
11:01
Bacterial Transformation: The Heat Shock Method
0 Views •
2023
Transformation is the process that occurs when a cell ingests foreign DNA from its surroundings. Transformation can occur in nature in certain types of bacteria. In molecular biology, transformation is artificially reproduced in the lab via the creation of pores in bacterial cell membranes. Bacterial cells that are able to take up DNA from the environment are called competent cells. In the laboratory, bacterial cells can be made competent and DNA subsequently introduced by a procedure called...
FAQs
The theta-beta-M relation connects the shock angle with the upstream Mach number, flow deflection angle, and specific-heat ratio. Engineers use these inputs to determine which shock angles satisfy the turning condition. Because the relation can produce weak and strong solutions, it provides a basis for predicting the corresponding flow changes rather than treating the angle as a purely geometric quantity.
A given upstream Mach number and flow deflection can satisfy the theta-beta-M relation at two different shock angles. These are identified as weak and strong shock solutions, and they represent different predicted changes in Mach number, pressure, temperature, and density. Distinguishing them is important because the selected solution affects calculated downstream conditions and engineering performance.
The upstream Mach number, the amount of flow turning, and the specific-heat ratio control the calculated angle through the theta-beta-M relation. Changing the wedge or compression-corner deflection changes the required flow turning, while changing the incoming Mach number alters the available supersonic flow state. These dependencies make the angle sensitive to both operating conditions and geometry.
First identify the upstream Mach number and the flow deflection imposed by the geometry, such as a wedge or compression corner. Then specify the gas specific-heat ratio and apply the theta-beta-M relation to obtain the possible shock angles. Finally, use the selected weak or strong solution to predict downstream Mach number, pressure, temperature, density, and aerodynamic losses.
In a supersonic inlet, the analysis predicts how compression changes the flow as it encounters turning surfaces. Engineers can use the calculated shock angle and downstream conditions to assess the inlet’s compression behavior, performance, and aerodynamic losses. This provides a way to connect the inlet geometry and incoming Mach number with expected flow conditions inside the compression system.
These components can turn a supersonic stream and therefore create conditions that require oblique shock analysis. The resulting angle helps engineers evaluate the pressure, temperature, density, and Mach-number changes associated with that turning. Applying the same analysis across wedges, airfoils, nozzles, and compression systems supports performance prediction and comparison of different supersonic geometries.