Is there a pressure ratio limit for choked flow through a c-d nozzle ...
Jun 21, 2024 · The discussion centers on the limits of choked flow through converging-diverging (c-d) nozzles, specifically addressing the effects of diameter and angle in the divergent section. It is …
Identifying Converging and Diverging Lenses: Explaining with Principal ...
Feb 1, 2005 · To determine whether a lens is converging or diverging, analyze the behavior of the principal rays after they pass through the lens. A convex lens will cause rays to converge at a point …
Focal Length of Diverging Lens: Negative Value Confirmed?
Jun 18, 2007 · The focal length of a diverging lens is definitively always negative, as confirmed by optical conventions. This characteristic is fundamental to understanding lens behavior in optics. Diverging …
Why Do Diverging Lenses Always Produce Shrunken Images?
Apr 24, 2010 · Diverging lenses consistently produce shrunken and inverted images regardless of the object's position relative to the lens. This phenomenon occurs due to the geometric properties of light …
Head Loss and Pressure Rise During Gradual Expansion
Apr 9, 2016 · Participants express varying levels of understanding and confusion regarding the application of velocities in head loss calculations, the definition of diverging sections, and the …
Combinination of two lenses, converging and diverging
Mar 17, 2007 · The discussion focuses on solving a problem involving a converging lens with a focal length of 15 cm and a diverging lens with an unknown focal length, separated by 30 cm. An object is …
Why Does Flow Become Supersonic in the Diverging Section of a Nozzle?
Sep 6, 2007 · i just started reading about nozzles and turbines in my semester course. i went through converging diverging nozzles. for achieving a supersonic flow, a converging diverging nozzle is used. …
Focal Length - please check my work and tell me what's wrong.
Apr 8, 2010 · A converging lens with a focal length of 11.4 cm is 30.0cm to the right of the diverging lens. The two-lens system forms a real inverted image 17.0 cm to the right of the converging lens.
How to determine when compressible flow is choked?
Jun 9, 2024 · In compressible flow, choking occurs at the minimum cross-sectional area, or throat, when the upstream to downstream pressure ratio is 0.528 for air. The introduction of a diverging section …
What is the magnification problem with two lenses?
Oct 25, 2006 · Here is the problem I am working on: Two lenses that are L = 38 cm apart are used to form an image, as shown in Figure 26-52. Lens 1 is diverging and has a focal length f1 = -7 cm; lens …