Turbulence - Wikipedia
Turbulence is commonly observed in everyday phenomena such as surf, fast flowing rivers, billowing storm clouds, or smoke from a chimney, and most fluid flows occurring in nature or created in engineering applications are turbulent.
Extracting turbulence parameters of smoke via video analysis
2021年8月2日 · Turbulence can be observed in almost all the smoke videos, so turbulence parameters can be extracted as features of smoke in the video smoke detection system. A video-based turbulence parameter measuring method is proposed in this paper.
Jawset Visual Computing
In a nutshell, Multiple Scattering is Global Illumination for smoke. It's a way to light smoke more realistically and brighter, since it's illuminated from all directions. It also allows fire to illuminate smoke from the inside, which is essential for realistic shading of explosions.
fluid dynamics - Is cigarette smoke an example of turbulent flow ...
2017年2月20日 · Everywhere in internet and books that introduce to fluid dynamics mention cigarette smoke as a classical example of turbulent flow. But the velocity, in other words the Reynolds number, is small. How could be that this flow is turbulent? How are you defining Reynolds number?
How can I achieve this high-detail smoke turbulence in …
2020年6月4日 · I have been trying using turbulence force fields and different scaling, size, strength, and flow values but the smoke always comes out in two big blobs, instead of clumping the way a particle simulation would with the same force fields.
How does the Turbulence Force Field work? - Blender Stack …
2016年12月6日 · TL;DR: The turbulence force field pushes particles around based on their position in a 3D noise. Here's a rough explanation of the key settings: Strength controls the amount of force the field exerts on the particles.
Smoke flow phenomena and turbulence characteristics of tunnel fires
2011年9月1日 · Turbulence is an important issue to be addressed when smoke flows are to be studied. Two averaging schemes commonly used in formulating turbulence governing equations are the Reynolds-averaging and Favre-averaging schemes.
Stream-guided smoke simulations | ACM Transactions on Graphics
2021年7月19日 · Real-time smoke simulation with improved turbulence by spatial adaptive vorticity confinement Turbulence modeling has recently drawn many attentions in fluid animation to generate small-scale rolling features.
Wavelet Turbulence for Fluid Simulation - Department of …
Instead of solving the Navier-Stokes equations over a highly refined mesh, we use the wavelet decomposition of a low-resolution simulation to determine the location and energy characteristics of missing high-frequency components.
X. Introduction to Turbulence Effects – Intermediate Fluid …
Turbulence is typically described as a time varying phenomena of all dependent variables (except density for incompressible flows). In addition, spatial variations of the time dependency occurs as well.
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