Oblique Shock Waves - NASA
2021年5月13日 · When a shock wave is inclined to the flow direction it is called an oblique shock. On this slide we have listed the equations which describe the change in flow variables for flow across an oblique shock.
Oblique shock - Wikipedia
Similar to a normal shock wave, the oblique shock wave consists of a very thin region across which nearly discontinuous changes in the thermodynamic properties of a gas occur. While the upstream and downstream flow directions are unchanged across a normal shock, they are different for flow across an oblique shock wave.
If θ < θmax, two distinct oblique shocks with two different β angles are physically possible. The smaller β case is called a weak shock, and is the one most likely to occur in a typical supersonic flow.
strong oblique shock is much larger than across a weak shock and hence the terminology. Whether a strong or weak shock occurs depends on the downstream conditions imposed on the flow. It is also important to recognize that the supersonic flow downstream of a weak shock must conform with the inclination of the wall downstream of the shock.
Oblique Shocks and Expansion Waves - Compressible Flow
The generation of oblique shocks is illustrated by the examples of flow over wedges (two-dimensional flow) and cones (three-dimensional flow). It is shown how the oblique shock relations can be used to calculate the flow properties on the downstream side of an oblique shock given the free stream Mach number and the cone angle (the deflection ...
Oblique Shock Wave Equations - NASA
If the shock wave is inclined to the flow direction it is called an oblique shock. On this slide we have listed the equations which describe the change in flow variables for flow past a two dimensional wedge.
Oblique Shockwaves - curiosityFluids
2016年4月8日 · When do oblique shocks occur? An oblique shock typically occurs when supersonic flow encounters an instantaneous flow deflection (δ). Because the flow cannot make this angle change gradually, it forms a shock wave. Oblique shocks occur in a wide variety of situations and are extremely important to understanding supersonic flow.
- [PDF]
Oblique Shock Waves
•We examined oblique shock waves, their properties and relations in this lesson. •We also discussed detached and bow shocks which can be thought of as generalized combinations of normal and oblique shocks. •We also examined how the oblique shock theory can be applied to solve supersonic flows over wedges and corners.
Normal shock is a special case of more general oblique shock. Disturbance in a supersonic flow can be propagated via the isentropic process (no discontinuity, expansion wave) or shock...
Oblique Shocks -7 AE3450 School of Aerospace Engineering Copyright © 2001, 2011 by Jerry M. Seitzman. All rights reserved. Oblique Shock Relations • To find conditions across shock, use M relations from normal shocks, e.g., (VII.5-17) but replace M 1 →M 1 sinθ=M 1n M 2 →M 2 sin(θ-δ)=M 2n • Mach Number (after shock) M sin 1 1 2 1 2 M ...
跳至内容