Momentum and Heat Transfer Phenomena of Confined Spheroid Particles in Power-Law Liquids

Autor:	C. Rajasekhar Reddy, Nanda Kishore
Rok vydání:	2013
Předmět:	Drag coefficient Chemistry General Chemical Engineering Prandtl number Reynolds number Thermodynamics General Chemistry Mechanics Nusselt number Industrial and Manufacturing Engineering Physics::Fluid Dynamics Momentum symbols.namesake Heat transfer symbols Particle Turbulent Prandtl number
Zdroj:	Industrial & Engineering Chemistry Research. 53:989-998
ISSN:	1520-5045 0888-5885
DOI:	10.1021/ie4032428
Popis:	Effects of wall confinement and the power-law fluid behavior index on momentum and heat transfer phenomena of confined spheroid particles are numerically investigated over wide ranges of conditions such as the Reynolds number, Re, 1–100; Prandtl number, Pr, 1–1000; particle aspect ratio, e, 0.5–2.5; wall confinement factor, λ, 2–5; and power-law fluid behavior index, n, 0.4–1.8. Some of the key findings include that the size of the recirculation wake at the rear end of the particle increases with the increasing particle aspect ratio and/or Reynolds number and/or wall factor. The total drag coefficient (Cd) decreases with the increasing wall factor and/or Reynolds number and/or the decreasing power-law index. Regardless of values of the Reynolds and Prandtl numbers and regardless of the shape of the spheroid particles, the average Nusselt number increases with the decreasing power-law index and/or with the decreasing wall factor.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d6a3fe20d6ccbd9eb32e38f2f766ae2c https://doi.org/10.1021/ie4032428 Zobrazit plný text záznamu