- Swirling flows are widely used in many engineering applications. In combustion devices, they are often used to stabilize the flame by means of a recirculation zone. Swirling flows, however, are prone to instabilities which can trigger pronounced unsteadiness of combustion degrading the performance of the whole system.www.sciencedirect.com/topics/engineering/swirling-flow
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9.3. Swirling and Rotating Flows - Ansys
Many important engineering flows involve swirl or rotation and Ansys Fluent is well-equipped to model such flows. Swirling flows are common in combustion, with swirl introduced in burners …
Swirling flow (Chapter 8) - Internal Flow - Cambridge University …
2010年1月14日 · In this chapter, we examine five aspects of swirling flows: (i) an introductory description of pressure and velocity fields in these types of motion; (ii) the increased capability …
1.5.1. Overview of Swirling and Rotating Flows - Ansys
When there are geometric changes and/or flow gradients in the circumferential direction, your swirling flow prediction requires a three-dimensional model. If you are planning a 3D Ansys …
旋拧射流的稳定性理论 - 知乎 - 知乎专栏
- 具有涡量(Vorticity， \[\omega = \nabla \times U\] )的流体运动称为有旋运动，而当涡量集中在一 …
下图展示了Volvo Holset HE400VG径流式涡轮后管道内的旋拧射流，这里假设管道为直管道，管道直径与涡轮出口shroud面的直径相同，可以看出，出口管道在很长一段距离内都维持稳定的旋拧射流。 - 涡轮出口旋拧射流
下图展示了三角翼型在大攻角下翼型表面两侧的旋拧流破碎情况
- 具有涡量(Vorticity， \[\omega = \nabla \times U\] )的流体运动称为有旋运动，而当涡量集中在一 …
Introductory Chapter: Swirling Flows and Flames
2018年10月1日 · Effects of using swirl on flow and combustion are significant and various and concern, for example, aerodynamics, mixing, flame stability, …
- 作者: Toufik Boushaki
- Publish Year: 2019
Swirling Flow - an overview | ScienceDirect Topics
The main stage air flows along the backside of the combustion liner, and then through a main fuel injector. The fuel–air mixture is then turned 180 ° and flows into the combustor. As the flow …
The suitability of different swirl number definitions for describing ...
2022年3月1日 · The swirl number concept was widely adopted as it essentially compares flow rates of quantities of interest obtained by integration across an axial cross-section at a position …
Physics of the swirling flows: In swirling flow, conservation of angular momentum results in the creation of a free vortex flow in which circumferential velocity w increases as the radius …
Swirling Flow - an overview | ScienceDirect Topics
Swirling flows produce centrifugal forces which could drive bubbles to the center of the flow (Liu and Bai, 2019a; Hreiz et al., 2011) and lower the intensity of the turbulence (Raeiszadeh et al., …
Simulation of Swirling Flow with a Vortex Breakdown Using …
2021年4月15日 · At low swirl nos., turbulence is primarily generated in the shear layer behind the sudden expansion; at high swirl nos. the near axis flow becomes unstable and vortex …
