Theorie schallnaher Strömungen

Guderley, Karl G.

doi:10.1007/978-3-642-48239-7

Cited by 82 publications

(13 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Vasil'ev and Kraiko [28], following Guderley's idea [38], proposed a four-wave reflection pattern, consisting of three shocks and a centered expansion fan. Skews and Ashworth [33] made an attempt to confirm the existence of the fourwave configuration experimentally.…”

Section: Analysis Of the Domain Of Irregular Non-mach Reflectionmentioning

confidence: 99%

Classification of pseudo-steady shock wave reflection types

2012

View full text Add to dashboard Cite

Classification of various types of the reflections of a shock wave over a straight wedge is proposed. The idea about entire reflection phenomenon as a result of interaction of two processes-the shock wave reflection process and the flow deflection process-serves as a basis for the classification. To recognize the types of reflection, changes in the shapes of the reflected wave, Mach stem, and contact surface (slipstream) are taken into account. The boundaries and domains of existence for various types of reflection configuration are reported. New terms for some types of reflection are proposed. The domain of irregular non-Mach reflection is analyzed carefully. It is shown that the von Neumann reflection pattern can result from not only the weak shock reflection but also the strong shock reflection over thin wedges. Shadowgraph images of different types of irregular reflection that illustrate the suggested classification are presented. Emphasis is placed on near-wall behavior of the contact discontinuity in the Mach configuration.

show abstract

Section: Analysis Of the Domain Of Irregular Non-mach Reflectionmentioning

confidence: 99%

Classification of pseudo-steady shock wave reflection types

2012

View full text Add to dashboard Cite

show abstract

“…If K > 1.25 the shock polar from I1 does not intersect the w axis as in Figure 5 and no regular reflection occurs as pointed out by Tabak and Rosales [3]. In this case further work must be carried out leading to another unsteady transonic problem governed by the unsteady, transonic small disturbance equation.…”

Section: Final Remarksmentioning

confidence: 95%

“…. But in fact it is useful to make one more change of variables (as used in [I], [3]), namely to let R = X -Y2/2 and d = Y . In these coordinates the mixed derivative term disappears from the equation and the far-field boundary curve straightens.…”

Section: Conical Coordinatesmentioning

confidence: 99%

An unsteady transonic flow - Flow about a suddenly deflected wedge

Cole

Cook

Schleiniger

1996

Theroretical Fluid Mechanics Conference

View full text Add to dashboard Cite

Unsteady transonac flows are important for the understanding of maneuvering and accelerating flight near the speed of sound. In this paper asymptotic methods are used to develop the approximate unsteady transonic small disturbance fomulataon. The particular problem of a suddenly deflected two-dimensional wedge is investigated. Numerical calculations are shown giving the development of shock patterns and the approach to steady state for an exactly sonic flow. Other applications of these equations and methods are discussed briefly.

show abstract

“…We use the part where 4 2 0 and notice that the solution is symmetrical similar to (6) Figure 2(e). So we combine these solutions similar to Figure 2(e), but not with contact lines BL and LD and solution (6) in between, but with sonic lines AL and LF and the 'fictitious' solution (so-called because it does not describe real flow) in between (Figure 2g). Both U and V distribution contacts smoothly along the sonic line arcs, without acceleration and curvature jumps.…”

Section: Figure 2 Modifications To Accelerated Lava1 Nozzle Flowmentioning

confidence: 99%